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Nanomaterials, Volume 12, Issue 17

2022 September-1 - 196 articles

Cover Story: Two series of β-NaYF4:Ln3+ nanoparticles (Ln = La–Nd, Sm–Lu) containing 20 at. % and 40 at. % of Ln3+ with well-defined morphology and size were synthesized via a facile citric-acid-assisted hydrothermal method using rare-earth chlorides as the precursors. The materials were composed from the particles that have a shape of uniform hexagonal prisms with an approximate size of 80–1100 nm. The mean diameter of NaYF4:Ln3+ crystals non-monotonically depended on the lanthanide atomic number, and the minimum size was observed for Gd3+-doped materials. At the same time, the unit cell parameters decreased from La to Lu according to XRD data analysis. The diameter-to-length ratio increased from La to Lu in both studied series. The effect of the doping lanthanide(III) ion nature on particle size and shape was explained in terms of crystal growth dynamics. View this paper
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Articles (196)

  • Article
  • Open Access
6 Citations
2,488 Views
10 Pages

5 September 2022

In this paper, the formation of rhombic ZnO microrods surrounded by ZnO nanorods was realized on the surfaces of zinc foils using a hydrothermal method. The photocatalytic degradation of Rhodamine B solution was used to test the photocatalytic perfor...

  • Article
  • Open Access
6 Citations
3,156 Views
10 Pages

Organic Photodetectors with Extended Spectral Response Range Assisted by Plasmonic Hot-Electron Injection

  • Aiping Zhai,
  • Chenjie Zhao,
  • Deng Pan,
  • Shilei Zhu,
  • Wenyan Wang,
  • Ting Ji,
  • Guohui Li,
  • Rong Wen,
  • Ye Zhang and
  • Yanxia Cui
  • + 1 author

5 September 2022

Organic photodetectors (OPDs) have aroused intensive attention for signal detection in industrial and scientific applications due to their advantages including low cost, mechanical flexibility, and large-area fabrication. As one of the most common or...

  • Article
  • Open Access
10 Citations
2,810 Views
18 Pages

Pyridine vs. Imidazole Axial Ligation on Cobaloxime Grafted Graphene: Hydrogen Evolution Reaction Insights

  • Ioanna K. Sideri,
  • Georgios Charalambidis,
  • Athanassios G. Coutsolelos,
  • Raul Arenal and
  • Nikos Tagmatarchis

5 September 2022

While cobaloximes have been protagonists in the molecular (photo)catalytic hydrogen evolution reaction field, researchers originally shed light on the catalytically active metallic center. However, the specific chemical environment of cobalt, includi...

  • Article
  • Open Access
3 Citations
2,569 Views
14 Pages

Circularly Polarized Antenna Array with Decoupled Quad Vortex Beams

  • Shuo Xu,
  • He-Xiu Xu,
  • Yanzhao Wang,
  • Jian Xu,
  • Chaohui Wang,
  • Zhichao Pang and
  • Huiling Luo

5 September 2022

Achieving multiple vortex beams with different modes in a planar microstrip array is pivotal, yet still extremely challenging. Here, a hybrid method combining both Pancharatnam−Berry (PB) phase that is induced by the rotation phase and excitati...

  • Article
  • Open Access
5 Citations
2,673 Views
15 Pages

5 September 2022

Different hierarchical porous In2O3 nanostructures were synthesized by regulating the hydrothermal time and combining it with a self-pore-forming method. The gas-sensing test results show that the response of the sensor based on In2O3 obtained after...

  • Article
  • Open Access
32 Citations
6,083 Views
9 Pages

The 3.4 GHz BAW RF Filter Based on Single Crystal AlN Resonator for 5G Application

  • Rui Ding,
  • Weipeng Xuan,
  • Shurong Dong,
  • Biao Zhang,
  • Feng Gao,
  • Gang Liu,
  • Zichao Zhang,
  • Hao Jin and
  • Jikui Luo

5 September 2022

To meet the stringent requirements of 5G communication, we proposed a high-performance bulk acoustic wave (BAW) filter based on single crystal AlN piezoelectric films on a SiC substrate. The fabrication of the BAW filter is compatible with the GaN hi...

  • Article
  • Open Access
24 Citations
5,271 Views
15 Pages

Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS2 Quantum Dots

  • Zhao Luo,
  • Tan Guo,
  • Chen Wang,
  • Jifan Zou,
  • Jianxun Wang,
  • Wei Dong,
  • Jing Li,
  • Wei Zhang,
  • Xiaoyu Zhang and
  • Weitao Zheng

5 September 2022

The interface of perovskite solar cells (PSCs) determines their power conversion efficiency (PCE). Here, the buried bottom surface of a perovskite film is efficiently passivated by using MoS2 quantum dots. The perovskite films prepared on top of MoS2...

  • Article
  • Open Access
6 Citations
4,305 Views
16 Pages

5 September 2022

The reaction time, temperature, ratio of precursors, and concentration of sodium citrate are known as the main factors that affect the direct synthesis process of SiO2@Au based on the chemical reaction of HAuCl4 and sodium citrate. Hence, we investig...

  • Article
  • Open Access
34 Citations
3,634 Views
18 Pages

Enhancing the Melting Process of Shell-and-Tube PCM Thermal Energy Storage Unit Using Modified Tube Design

  • Aissa Abderrahmane,
  • Naef A. A. Qasem,
  • Abed Mourad,
  • Mohammad Al-Khaleel,
  • Zafar Said,
  • Kamel Guedri,
  • Obai Younis and
  • Riadh Marzouki

5 September 2022

Recently, phase change materials (PCMs) have gained great attention from engineers and researchers due to their exceptional properties for thermal energy storing, which would effectively aid in reducing carbon footprint and support the global transit...

  • Article
  • Open Access
21 Citations
3,987 Views
12 Pages

5 September 2022

Inkjet printing of high-viscosity (up to 105 mPa·s) nanosilver inks is an interesting emerging technology to achieve the 3D fully printed fabrication of electronic products. The highly viscous force of the ink makes it impossible to achieve dr...

  • Article
  • Open Access
14 Citations
3,580 Views
21 Pages

Curcumin and Capsaicin-Loaded Ag-Modified Mesoporous Silica Carriers: A New Alternative in Skin Treatment

  • Ivalina Trendafilova,
  • Ralitsa Chimshirova,
  • Denitsa Momekova,
  • Hristo Petkov,
  • Neli Koseva,
  • Penka Petrova and
  • Margarita Popova

5 September 2022

Biologically active substances of natural origin offer a promising alternative in skin disease treatment in comparison to synthetic medications. The limiting factors for the efficient application of natural compounds, such as low water solubility and...

  • Article
  • Open Access
10 Citations
2,981 Views
24 Pages

Ameliorative Effect of Pomegranate Peel Extract (PPE) on Hepatotoxicity Prompted by Iron Oxide Nanoparticles (Fe2O3-NPs) in Mice

  • Yasmin M. Abd El-Aziz,
  • Basma M. Hendam,
  • Fawziah A. Al-Salmi,
  • Safa H. Qahl,
  • Eman H. Althubaiti,
  • Fahmy G. Elsaid,
  • Ali A. Shati,
  • Nasser M. Hosny,
  • Eman Fayad and
  • Ali H. Abu Almaaty

4 September 2022

An evaluation of the ameliorative effect of pomegranate peel extract (PPE) in counteracting the toxicity of iron oxide nanoparticles (Fe2O3-NPs) that cause hepatic tissue damage is focused on herein. Forty male albino mice were haphazardly grouped in...

  • Article
  • Open Access
2 Citations
2,750 Views
9 Pages

Higher-Order Multiphoton Absorption Upconversion Lasing Based on ZnO/ZnMgO Multiple Quantum Wells

  • Shushu Ma,
  • Haiyuan Wei,
  • Hai Zhu,
  • Francis Chi-Chung Ling,
  • Xianghu Wang and
  • Shichen Su

4 September 2022

In the progress of nonlinear optics, multiphoton absorption (MPA) upconversion lasing enables many vital applications in bioimaging, three-dimensional optical data storage, and photodynamic therapy. Here, efficient four-photon absorption upconversion...

  • Article
  • Open Access
9 Citations
2,508 Views
11 Pages

Electrospun Magnetic Ionic Liquid Based Electroactive Materials for Tissue Engineering Applications

  • Liliana C. Fernandes,
  • Rafaela M. Meira,
  • Daniela M. Correia,
  • Clarisse Ribeiro,
  • Eduardo Fernandez,
  • Carmen R. Tubio and
  • Senentxu Lanceros-Méndez

4 September 2022

Functional electrospun fibers incorporating ionic liquids (ILs) present a novel approach in the development of active microenviroments due to their ability to respond to external magnetic fields without the addition of magnetic particles. In this con...

  • Article
  • Open Access
15 Citations
3,860 Views
14 Pages

Highly Breathable and Abrasion-Resistant Membranes with Micro-/Nano-Channels for Eco-Friendly Moisture-Wicking Medical Textiles

  • Yue Zhang,
  • Xing Li,
  • Hong-Yang Wang,
  • Bo-Xiang Wang,
  • Jia Li,
  • De-Hong Cheng and
  • Yan-Hua Lu

4 September 2022

One-way water transport is a predominant feature of comfortable textiles used in daily life. However, shortcomings related to the textiles include their poor breathability and durability. In this study, low-cost and eco-friendly PLA/low-melt (polylac...

  • Article
  • Open Access
2 Citations
2,128 Views
9 Pages

3 September 2022

The spontaneous emission of a fluorophore is altered by the surrounding electromagnetic field. Therefore, the radiation of the fluorophore can be engineered by inter-coupling with the nanoscale plasmons. This work proposes a nanoscale hemisphere stru...

  • Article
  • Open Access
6 Citations
2,616 Views
12 Pages

Preparation and Study of a Simple Three-Matrix Solid Electrolyte Membrane in Air

  • Xinghua Liang,
  • Xingtao Jiang,
  • Linxiao Lan,
  • Shuaibo Zeng,
  • Meihong Huang and
  • Dongxue Huang

3 September 2022

Solid-state lithium batteries have attracted much attention due to their special properties of high safety and high energy density. Among them, the polymer electrolyte membrane with high ionic conductivity and a wide electrochemical window is a key p...

  • Article
  • Open Access
40 Citations
4,374 Views
22 Pages

Development of Ag-Doped ZnO Thin Films and Thermoluminescence (TLD) Characteristics for Radiation Technology

  • Hammam Abdurabu Thabit,
  • Norlaili A. Kabir,
  • Abd Khamim Ismail,
  • Shoroog Alraddadi,
  • Abdullah Bafaqeer and
  • Muneer Aziz Saleh

3 September 2022

This work examined the thermoluminescence dosimetry characteristics of Ag-doped ZnO thin films. The hydrothermal method was employed to synthesize Ag-doped ZnO thin films with variant molarity of Ag (0, 0.5, 1.0, 3.0, and 5.0 mol%). The structure, mo...

  • Communication
  • Open Access
2 Citations
3,198 Views
11 Pages

Efficient Nanocrystal Photovoltaics with PTAA as Hole Transport Layer

  • Ao Xu,
  • Qichuan Huang,
  • Kaiying Luo,
  • Donghuan Qin,
  • Wei Xu,
  • Dan Wang and
  • Lintao Hou

3 September 2022

The power conversion efficiency (PCE) of solution-processed CdTe nanocrystals (NCs) solar cells has been significantly promoted in recent years due to the optimization of device design by advanced interface engineering techniques. However, further de...

  • Review
  • Open Access
237 Citations
22,478 Views
31 Pages

Current Research on Zinc Oxide Nanoparticles: Synthesis, Characterization, and Biomedical Applications

  • Ashok Kumar Mandal,
  • Saurav Katuwal,
  • Felix Tettey,
  • Aakash Gupta,
  • Salyan Bhattarai,
  • Shankar Jaisi,
  • Devi Prasad Bhandari,
  • Ajay Kumar Shah,
  • Narayan Bhattarai and
  • Niranjan Parajuli

3 September 2022

Zinc oxide nanoparticles (ZnO-NPs) have piqued the curiosity of researchers all over the world due to their extensive biological activity. They are less toxic and biodegradable with the capacity to greatly boost pharmacophore bioactivity. ZnO-NPs are...

  • Article
  • Open Access
12 Citations
3,752 Views
16 Pages

3 September 2022

A multifunctional and biocompatible hybrid microgel (poly(VPBA-AAm)-CD) using N, S-doped carbon dots (CDs) and ethylene glycol dimethacrylate (EGDMA) as cross-linking agents, and 4-vinylbenzene boronic acid (VPBA) and acrylamide (AAm) as monomers, wa...

  • Article
  • Open Access
2 Citations
2,030 Views
11 Pages

Effect of Magnetic Heating on Stability of Magnetic Colloids

  • Andrzej Drzewiński,
  • Maciej Marć,
  • Wiktor W. Wolak and
  • Mirosław R. Dudek

3 September 2022

Stable aqueous suspension of magnetic nanoparticles is essential for effective magnetic hyperthermia and other applications of magnetic heating in an alternating magnetic field. However, the alternating magnetic field causes strong agglomeration of m...

  • Article
  • Open Access
8 Citations
3,234 Views
9 Pages

Preparing Colour-Tunable Tannic Acid-Based Carbon Dots by Changing the pH Value of the Reaction System

  • Yan Li,
  • Can Liu,
  • Menglin Chen,
  • Yunwu Zheng,
  • Hao Tian,
  • Rui Shi,
  • Xiahong He and
  • Xu Lin

3 September 2022

Biomass carbon dots (CDs) have the characteristics of being green, nontoxic, inexpensive, and simple to prepare, and they can be used in luminescence-related fields. In this study, red, green, and blue luminescent CDs were synthesised by a simple hyd...

  • Article
  • Open Access
4 Citations
3,129 Views
13 Pages

3 September 2022

We propose an ambipolar chitosan synaptic transistor that effectively responds to binary neuroplasticity. We fabricated the synaptic transistors by applying a chitosan electric double layer (EDL) to the gate insulator of the excimer laser annealed po...

  • Article
  • Open Access
9 Citations
2,517 Views
10 Pages

3 September 2022

Organic-resistance random access memory has high application potential in the field of next-generation green nonvolatile memory. Because of their biocompatibility and environmental friendliness, natural biomaterials are suitable for the fabrication o...

  • Article
  • Open Access
2 Citations
3,067 Views
15 Pages

In Situ Measurements of Strain Evolution in Graphene/Boron Nitride Heterostructures Using a Non-Destructive Raman Spectroscopy Approach

  • Marc Mezzacappa,
  • Dheyaa Alameri,
  • Brian Thomas,
  • Yoosuk Kim,
  • Chi-Hou Lei and
  • Irma Kuljanishvili

3 September 2022

The mechanical properties of engineered van der Waals (vdW) 2D materials and heterostructures are critically important for their implementation into practical applications. Using a non-destructive Raman spectroscopy approach, this study investigates...

  • Article
  • Open Access
24 Citations
7,665 Views
16 Pages

On the Reliability of HZO-Based Ferroelectric Capacitors: The Cases of Ru and TiN Electrodes

  • Roman R. Khakimov,
  • Anna G. Chernikova,
  • Aleksandra A. Koroleva and
  • Andrey M. Markeev

3 September 2022

Despite the great potential of Hf0.5Zr0.5O2 (HZO) ferroelectrics, reliability issues, such as wake-up, fatigue, endurance limitations, imprint and retention loss, impede the implementation of HZO to nonvolatile memory devices. Herein, a study of the...

  • Article
  • Open Access
7 Citations
2,660 Views
25 Pages

Bacterial Surface Disturbances Affecting Cell Function during Exposure to Three-Compound Nanocomposites Based on Graphene Materials

  • Agata Lange,
  • Ewa Sawosz,
  • Karolina Daniluk,
  • Mateusz Wierzbicki,
  • Artur Małolepszy,
  • Marcin Gołębiewski and
  • Sławomir Jaworski

2 September 2022

Combating pathogenic microorganisms in an era of ever-increasing drug resistance is crucial. The aim of the study was to evaluate the antibacterial mechanism of three-compound nanocomposites that were based on graphene materials. To determine the nan...

  • Article
  • Open Access
7 Citations
2,249 Views
13 Pages

2 September 2022

Owning to their distinctive electronic structure, rare-earth-based catalysts exhibit good performance in the oxygen reduction reaction (ORR) and can replace commercial Pt/C. In this study, CeO2-modified N-doped C-based materials were synthesized usin...

  • Article
  • Open Access
8 Citations
3,785 Views
21 Pages

The Release of Non-Extractable Ferulic Acid from Cereal By-Products by Enzyme-Assisted Hydrolysis for Possible Utilization in Green Synthesis of Silver Nanoparticles

  • Vitalijs Radenkovs,
  • Karina Juhnevica-Radenkova,
  • Dmitrijs Jakovlevs,
  • Peteris Zikmanis,
  • Daiga Galina and
  • Anda Valdovska

2 September 2022

The present work was undertaken to elucidate the potential contribution of biosynthetically produced ferulic acid (FA) via enzymatic hydrolysis (EH) of rye bran (RB) to the formation of silver nanoparticles (AgNPs) during green synthesis. An analytic...

  • Article
  • Open Access
23 Citations
3,096 Views
16 Pages

2 September 2022

An optimized “rigid-flexible” structure with multistage gradient modulus was constructed on carbon fiber (CF) surface via chemical grafting using “flexible” polyethyleneimine (PEI) and “rigid” polydopamine (PDA) be...

  • Article
  • Open Access
9 Citations
4,034 Views
13 Pages

Templated Assembly of pH-Labile Covalent Organic Framework Hierarchical Particles for Intracellular Drug Delivery

  • Fangzhou Zhou,
  • Yuanyuan Fang,
  • Chao Deng,
  • Qian Zhang,
  • Minying Wu,
  • Hsin-Hui Shen,
  • Yi Tang and
  • Yajun Wang

2 September 2022

Covalent organic frameworks (COF), a class of emerging microporous polymers, have been restrained for drug delivery applications due to their limited controllability over particle sizes and degradability. Herein, a dendritic mesoporous silica nanosph...

  • Article
  • Open Access
24 Citations
3,878 Views
11 Pages

Preparation of Solid Lipid Nanoparticle-Ferrous Sulfate by Double Emulsion Method Based on Fat Rich in Monolaurin and Stearic Acid

  • Edy Subroto,
  • Robi Andoyo,
  • Rossi Indiarto,
  • Endah Wulandari and
  • Elgi Fadhilah Nadhirah Wadhiah

2 September 2022

Ferrous sulfate is one type of iron that is commonly used in iron supplementation and fortification in food products, but it has low stability and an unfavorable flavor, causing its use to be limited. Encapsulation in a solid lipid nanoparticle (SLN)...

  • Article
  • Open Access
7 Citations
3,865 Views
21 Pages

2 September 2022

A three-dimensional kinetic Monte Carlo methodology is developed to study the strained epitaxial growth of wurtzite GaN/AlN quantum dots. It describes the kinetics of effective GaN adatoms on an hexagonal lattice. The elastic strain energy is evaluat...

  • Review
  • Open Access
32 Citations
6,451 Views
36 Pages

Ultrasound Triggering of Liposomal Nanodrugs for Cancer Therapy: A Review

  • Wafa N. Bahutair,
  • Waad H. Abuwatfa and
  • Ghaleb A. Husseini

2 September 2022

Efficient conventional chemotherapy is limited by its nonspecific nature, which causes severe systemic toxicity that can lead to patient discomfort and low therapeutic efficacy. The emergence of smart drug delivery systems (SDDSs) utilizing nanoparti...

  • Article
  • Open Access
7 Citations
2,057 Views
16 Pages

2 September 2022

This study aimed to discover an easy and precise prediction model for the acoustic properties of nanofiber nonwoven fabrics. For this purpose, a prediction model focusing on the two dominant parameters in the Limp frame model—bulk density and f...

  • Article
  • Open Access
37 Citations
4,723 Views
18 Pages

2 September 2022

Considering the risk associated with exposure to benzene and toluene in water resources, researchers have been motivated to conduct studies to remove them from aqueous solutions. Thus, by performing the present study, the potential of Fe3O4/zeolite i...

  • Article
  • Open Access
5 Citations
2,036 Views
11 Pages

2 September 2022

This study investigated the surface properties, biocompatibility, and antifungal activity against Candida albicans of a denture-relining material coated with zinc-bound phosphate-based glass. First, zinc-bound phosphate-based glass was fabricated. A...

  • Article
  • Open Access
4 Citations
2,333 Views
10 Pages

2 September 2022

A composite of Mo2C nanoparticles dispersed onto a nitrogen and sulfur co-doped carbon scaffold (Mo2C/N,S-C) was prepared by a simple and environmentally friendly method of one-pot annealing of MoCl5, urea, and lignosulfonate under a N2 atmosphere at...

  • Communication
  • Open Access
7 Citations
1,797 Views
9 Pages

Development of Direct Immobilization Technique of Ag Nanoparticles on Resin Substrates Imparting High Antibacterial and Antiviral Activities

  • Satoshi Seino,
  • Yuji Ohkubo,
  • Tomonari Magara,
  • Hiroki Enomoto,
  • Eri Nakajima,
  • Tomoki Nishida,
  • Yasuo Imoto and
  • Takashi Nakagawa

2 September 2022

A new method has been developed to impart the antimicrobial activity of silver nanoparticles to resin substrates. A resin substrate immersed in an aqueous solution of silver nitrate was irradiated with gamma ray or high energy electron beams. Silver...

  • Editorial
  • Open Access
12 Citations
2,748 Views
4 Pages

Fiber-Reinforced Polymer Nanocomposites

  • R. A. Ilyas,
  • N. M. Nurazzi and
  • M. N. F. Norrrahim

2 September 2022

“Fiber-Reinforced Polymer Nanocomposites” is a newly open Special Issue of Nanomaterials, which aims to publish original and review papers on new scientific and applied research and make boundless contributions to the finding and understa...

  • Article
  • Open Access
69 Citations
3,660 Views
18 Pages

Influence of Nanosized CoTiO3 Synthesized via a Solid-State Method on the Hydrogen Storage Behavior of MgH2

  • Nurul Amirah Ali,
  • Muhammad Syarifuddin Yahya,
  • Noratiqah Sazelee,
  • Muhamad Faiz Md Din and
  • Mohammad Ismail

1 September 2022

Magnesium hydride (MgH2) has received outstanding attention as a safe and efficient material to store hydrogen because of its 7.6 wt.% hydrogen content and excellent reversibility. Nevertheless, the application of MgH2 is obstructed by its unfavorabl...

  • Article
  • Open Access
6 Citations
2,934 Views
20 Pages

Thermal and Rheological Characterization of Aqueous Nanofluids Based on Reduced Graphene Oxide (rGO) with Manganese Dioxide Nanocomposites (MnO2)

  • Felipe Lozano-Steinmetz,
  • María Paz Ramírez-Navarro,
  • Leonardo Vivas,
  • Diego A. Vasco,
  • Dinesh Pratap Singh and
  • Carlos Zambra-Sazo

1 September 2022

Nanofluids have become of interest in recent years thanks to their improved thermal properties, which make them especially interesting for microchannel heat sink applications. In this study, we prepared two aqueous nanofluids based on reduced graphen...

  • Article
  • Open Access
4 Citations
2,418 Views
14 Pages

Silica-Decorated NiAl-Layered Double Oxide for Enhanced CO/CO2 Methanation Performance

  • Wenxia Yan,
  • Yangyang Li,
  • Junming Zeng,
  • Wentao Bao,
  • Huanhuan Zhao,
  • Jiangbing Li,
  • Poernomo Gunawan and
  • Feng Yu

1 September 2022

CO/CO2 hydrogenation has attracted much attention as a pathway to achieve carbon neutrality and production of synthetic natural gas (SNG). In this work, two-dimensional NiAl layered double oxide (2D NiAl-LDO) has been successfully decorated by SiO2 n...

  • Article
  • Open Access
34 Citations
4,956 Views
17 Pages

Manufacturing of Zinc Oxide Nanoparticle (ZnO NP)-Loaded Polyvinyl Alcohol (PVA) Nanostructured Mats Using Ginger Extract for Tissue Engineering Applications

  • Hursima Izgis,
  • Elif Ilhan,
  • Cevriye Kalkandelen,
  • Emrah Celen,
  • Mehmet Mucahit Guncu,
  • Hilal Turkoglu Sasmazel,
  • Oguzhan Gunduz,
  • Denisa Ficai,
  • Anton Ficai and
  • Gabriel Constantinescu

1 September 2022

In this research, as an alternative to chemical and physical methods, environmentally and cost-effective antimicrobial zinc oxide nanoparticles (ZnO NP) were produced by the green synthesis method. The current study focuses on the production of ZnO N...

  • Article
  • Open Access
38 Citations
2,169 Views
20 Pages

1 September 2022

This study explored the impact of double diffusive convection and inclined magnetic field in nanofluids on the peristaltic pumping of fourth grade fluid in non-uniform channels. Firstly, a brief mathematical model of fourth grade fluid along inclined...

  • Article
  • Open Access
21 Citations
3,904 Views
14 Pages

MnO2-Ir Nanowires: Combining Ultrasmall Nanoparticle Sizes, O-Vacancies, and Low Noble-Metal Loading with Improved Activities towards the Oxygen Reduction Reaction

  • Scarllett L. S. de Lima,
  • Fellipe S. Pereira,
  • Roberto B. de Lima,
  • Isabel C. de Freitas,
  • Julio Spadotto,
  • Brian J. Connolly,
  • Jade Barreto,
  • Fernando Stavale,
  • Hector A. Vitorino and
  • Anderson G. M. da Silva
  • + 3 authors

1 September 2022

Although clean energy generation utilizing the Oxygen Reduction Reaction (ORR) can be considered a promising strategy, this approach remains challenging by the dependence on high loadings of noble metals, mainly Platinum (Pt). Therefore, efforts have...

  • Article
  • Open Access
11 Citations
3,782 Views
15 Pages

Production of H2-Free Carbon Monoxide from Formic Acid Dehydration: The Catalytic Role of Acid Sites in Sulfated Zirconia

  • Hyun Ju Lee,
  • Dong-Chang Kang,
  • Eun-Jeong Kim,
  • Young-Woong Suh,
  • Dong-Pyo Kim,
  • Haksoo Han and
  • Hyung-Ki Min

1 September 2022

The formic acid (CH2O2) decomposition over sulfated zirconia (SZ) catalysts prepared under different synthesis conditions, such as calcination temperature (500–650 °C) and sulfate loading (0–20 wt.%), was investigated. Three sulfate s...

  • Article
  • Open Access
7 Citations
4,106 Views
11 Pages

1 September 2022

Two–dimensional materials have the potential to be applied in flexible and transparent electronics. In this study, single-layer MoS2 field-effect transistors (FETs) with Au/Ti–graphene heteroelectrodes were fabricated to examine the effec...

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Nanomaterials - ISSN 2079-4991