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67 Results Found

  • Article
  • Open Access
3 Citations
2,161 Views
10 Pages

23 August 2022

How in situ structural reconstructions affect the hydrogen evolution reaction (HER) activity of small Pd clusters is a long-standing problem in the field of heterogeneous catalysis. Herein, we reveal the structural evolution of Pdn (n = 6, 19, 44) cl...

  • Article
  • Open Access
34 Citations
8,709 Views
14 Pages

Gas Leakage Source Detection for Li-Ion Batteries by Distributed Sensor Array

  • Valentin Mateev,
  • Iliana Marinova and
  • Zhelyazko Kartunov

30 June 2019

Lithium-based batteries operation is related to some safety risks of dangerous flaming, integrity destruction, or even explosion. Gas leakage is an early and reliable indicator for such irreversible malfunctioning of electrical accumulators. Often, a...

  • Article
  • Open Access
1,389 Views
14 Pages

Enhanced Platinum-Based Thin-Film Catalysts for Electro-Oxidation of Methanol

  • Dušan V. Tripković,
  • Dragana L. Milošević,
  • Sanja I. Stevanović,
  • Ksenija Dj. Popović and
  • Vladislava M. Jovanović

15 November 2024

Surface morphology is one of the critical factors affecting the performance of electrocatalysts. Thus, with careful manipulation of the surface structures at the atomic level, the effectiveness of the catalyst can be significantly improved. Heat trea...

  • Article
  • Open Access
825 Views
16 Pages

A Quinary-Metallic High-Entropy Electrocatalyst with Driving of Cocktail Effect for Enhanced Oxygen Evolution Reaction

  • Jing-Yi Lv,
  • Zhi-Jie Zhang,
  • Hao Zhang,
  • Jun Nan,
  • Zan Chen,
  • Xin Liu,
  • Fei Han,
  • Yong-Ming Chai and
  • Bin Dong

5 August 2025

The complex system of high-entropy materials makes it challenging to reveal the specific function of each site for oxygen evolution reaction (OER). Here, with nickel foam (NF) as the substrate, FeCoNiCrMo/NF is designed to be prepared by metal–...

  • Feature Paper
  • Review
  • Open Access
26 Citations
4,453 Views
21 Pages

9 September 2021

Surface reconstruction engineering is an effective strategy to promote the catalytic activities of electrocatalysts, especially for water oxidation. Taking advantage of the physicochemical properties of precatalysts by manipulating their structural s...

  • Review
  • Open Access
1,571 Views
21 Pages

23 April 2025

Carbon monoxide (CO) is an important air pollutant generated from the incomplete combustion of fossil fuels, particularly in industrial processes such as iron and steel smelting, power generation, and waste incineration, posing environmental challeng...

  • Review
  • Open Access
73 Citations
16,711 Views
27 Pages

23 January 2015

We review arguments that biology emerged from a reciprocal partnership in which small ancestral oligopeptides and oligonucleotides initially both contributed rudimentary information coding and catalytic rate accelerations, and that the superior infor...

  • Article
  • Open Access
20 Citations
4,503 Views
12 Pages

Alkali-Free Hydrothermally Reconstructed NiAl Layered Double Hydroxides for Catalytic Transesterification

  • Nazrizawati A. Tajuddin,
  • Jinesh C. Manayil,
  • Adam F. Lee and
  • Karen Wilson

3 March 2022

NiAl layered double hydroxides (LDHs) are promising bifunctional catalysts comprising tunable redox and Lewis acidic sites. However, most studies of NiAl LDH employ alkali hydroxide carbonate precipitants which may contaminate the final LDH catalyst...

  • Feature Paper
  • Article
  • Open Access
17 Citations
5,946 Views
11 Pages

Alkali-Free Zn–Al Layered Double Hydroxide Catalysts for Triglyceride Transesterification

  • Nazrizawati A. Tajuddin,
  • Jinesh C. Manayil,
  • Mark A. Isaacs,
  • Christopher M.A. Parlett,
  • Adam F. Lee and
  • Karen Wilson

18 December 2018

Zn–Al layered double hydroxides (LDHs) of general formula [Zn2+(1−x)Al3+x(OH)2]x+(CO32−)x/2·yH2O are promising solid base catalysts for the transesterification of lipids to biofuels. However, conventional synthetic routes emp...

  • Article
  • Open Access
7 Citations
5,053 Views
15 Pages

Comparative Analysis and Ancestral Sequence Reconstruction of Bacterial Sortase Family Proteins Generates Functional Ancestral Mutants with Different Sequence Specificities

  • Jordan D. Valgardson,
  • Sarah A. Struyvenberg,
  • Zachary R. Sailer,
  • Isabel M. Piper,
  • Justin E. Svendsen,
  • D. Alex Johnson,
  • Brandon A. Vogel,
  • John M. Antos,
  • Michael J. Harms and
  • Jeanine F. Amacher

9 June 2022

Gram-positive bacteria are some of the earliest known life forms, diverging from gram-negative bacteria 2 billion years ago. These organisms utilize sortase enzymes to attach proteins to their peptidoglycan cell wall, a structural feature that distin...

  • Article
  • Open Access
1,014 Views
12 Pages

In Situ Observation of Redox Dynamics and Surface Restructuring on Pt/CeO2 Catalysts

  • Yuye Li,
  • Jianyu Cao,
  • Zhongshi Zhang,
  • Jing Xia and
  • Xiangmin Meng

24 February 2025

Heterogeneous catalysis has significant applications in energy conversion, chemical production, and environmental treatment. Among them, the supported catalyst Pt/CeO2 has attracted much attention due to its high catalytic activity and stability. Whi...

  • Article
  • Open Access
11 Citations
4,029 Views
13 Pages

In Situ Regeneration of Copper-Coated Gas Diffusion Electrodes for Electroreduction of CO2 to Ethylene

  • Magdalena Bisztyga-Szklarz,
  • Krzysztof Mech,
  • Mateusz Marzec,
  • Robert Kalendarev and
  • Konrad Szaciłowski

9 June 2021

A key challenge for carbon dioxide reduction on Cu-based catalysts is its low faradic efficiency (FE) and selectivity towards higher-value products, e.g., ethylene. The main factor limiting the possibilities of long-term applications of Cu-based gas...

  • Article
  • Open Access
842 Views
23 Pages

COx-Free Hydrogen Production via CH4 Decomposition on Alkali-Incorporated (Mg, La, Ca, Li) Ni-Al Catalysts

  • Morgana Rosset,
  • Yan Resing Dias,
  • Liliana Amaral Féris and
  • Oscar William Perez-Lopez

The catalytic decomposition of CH4 is a promising method for producing high-purity COx-free hydrogen. A Ni-Al-LDH catalyst synthesized via coprecipitation was modified with alkali metals (Mg, La, Ca, or Li) through reconstruction to enhance catalytic...

  • Article
  • Open Access
8 Citations
3,362 Views
15 Pages

Effect of Reduction Atmosphere on Structure and Catalytic Performance of PtIn/Mg(Al)O/ZnO for Propane Dehydrogenation

  • Ming Zhang,
  • Zhen Song,
  • Mengquan Guo,
  • Xiangxiang Li,
  • Yanjun Lin and
  • Lihong Zhang

29 April 2020

The effect of reduction atmospheres, H2/N2, C3H8/H2/N2, C3H8 and CO, on the structure and propane direct dehydrogenation performance of PtIn/Mg(Al)O/ZnO catalyst derived from ZnO-supported PtIn-hydrotalcite was studied. The physicochemical properties...

  • Article
  • Open Access
5 Citations
4,357 Views
14 Pages

23 June 2020

This research dealt with the preparation and characterization of silver oxide (SLO) nanomaterials (NMs) and their composite catalysts (i.e., silver and ruthenium oxide (SLORUO)). The prepared materials were tested for their catalytic performance in c...

  • Article
  • Open Access
9 Citations
4,325 Views
13 Pages

17 October 2022

CoFe2O4 is a promising catalytic material for many chemical reactions. We used ab initio molecular dynamic simulations to study the structure and reactivity of the A- and B-terminations of the low-index CoFe2O4(001) surfaces to water adsorption at ro...

  • Article
  • Open Access
16 Citations
10,138 Views
34 Pages

11 January 2011

Sixteen static diffusion reactors containing n-ZVM (Fe0, Cu0, Al0) establish a common equilibrium redox (Eh-pH) trajectory which is directly linked to the aquifer pore volume, volume of injected n-ZVM, throughflow rate within the aquifer and time. Th...

  • Article
  • Open Access
13 Citations
4,651 Views
24 Pages

Unraveling Structural Details in Ga-Pd SCALMS Systems Using Correlative Nano-CT, 360° Electron Tomography and Analytical TEM

  • Janis Wirth,
  • Silvan Englisch,
  • Dominik Drobek,
  • Benjamin Apeleo Zubiri,
  • Mingjian Wu,
  • Nicola Taccardi,
  • Narayanan Raman,
  • Peter Wasserscheid and
  • Erdmann Spiecker

1 July 2021

We present a comprehensive structural and analytical characterization of the highly promising supported catalytically active liquid metal solutions (SCALMS) system. This novel catalyst shows excellent performance for alkane dehydrogenation, especiall...

  • Article
  • Open Access
1,637 Views
25 Pages

Rabbit and Human Angiotensin-Converting Enzyme-2: Structure and Electric Properties

  • Svetlana H. Hristova,
  • Trifon T. Popov and
  • Alexandar M. Zhivkov

19 November 2024

The angiotensin-converting enzyme-2 (ACE2) is a transmembrane glycoprotein, consisting of two segments: a large carboxypeptidase catalytic domain and a small transmembrane collectrin-like segment. This protein plays an essential role in blood pressur...

  • Article
  • Open Access
3 Citations
2,352 Views
9 Pages

4 October 2022

FeNi-based hybrid materials are among the most representative catalysts for alkaline oxygen evolution reaction (OER), but the modulation of their surface atoms to achieve the optimal catalytic properties is still a big challenge. Here, we report the...

  • Feature Paper
  • Review
  • Open Access
1,329 Views
14 Pages

26 March 2025

Glycoside hydrolase family 11 (GH11) xylanases are used in various industries, such as biorefining, animal feed production, and baking, making them key industrial enzymes. Operating bioprocesses at elevated temperatures enhances the reaction rate and...

  • Review
  • Open Access
900 Views
22 Pages

Bio-Inspired Photocatalytic Nitrogen Fixation: From Nitrogenase Mimicry to Advanced Artificial Systems

  • Wenpin Xia,
  • Kaiyang Zhang,
  • Jiewen Hou,
  • Huaiyu Fu,
  • Mingming Gao,
  • Hui-Zi Huang,
  • Liwei Chen,
  • Suqin Han,
  • Yen Leng Pak and
  • Hongyu Mou
  • + 2 authors

29 September 2025

Photocatalytic nitrogen fixation under ambient conditions offers a sustainable alternative to the energy-intensive Haber–Bosch process, yet remains limited by the inertness of N≡N bonds and sluggish multi-electron/proton transfer kinetics...

  • Article
  • Open Access
11 Citations
6,240 Views
19 Pages

On the Structure of Ultrathin FeO Films on Ag(111)

  • Mikołaj Lewandowski,
  • Tomasz Pabisiak,
  • Natalia Michalak,
  • Zygmunt Miłosz,
  • Višnja Babačić,
  • Ying Wang,
  • Michał Hermanowicz,
  • Krisztián Palotás,
  • Stefan Jurga and
  • Adam Kiejna

13 October 2018

Ultrathin transition metal oxide films exhibit unique physical and chemical properties not observed for the corresponding bulk oxides. These properties, originating mainly from the limited thickness and the interaction with the support, make those fi...

  • Article
  • Open Access
32 Citations
2,825 Views
12 Pages

Oxygen-Plasma-Induced Hetero-Interface NiFe2O4/NiMoO4 Catalyst for Enhanced Electrochemical Oxygen Evolution

  • Nuo Xu,
  • Wei Peng,
  • Lei Lv,
  • Peng Xu,
  • Chenxu Wang,
  • Jiantao Li,
  • Wen Luo and
  • Liang Zhou

20 May 2022

The electrolysis of water to produce hydrogen is an effective method for solving the rapid consumption of fossil fuel resources and the problem of global warming. The key to its success is to design an oxygen evolution reaction (OER) electrocatalyst...

  • Article
  • Open Access
1 Citations
545 Views
10 Pages

Orientation Relationships and Interface Structuring in Au-Seeded TiO2 Nanowires

  • Adel M. Abuamr,
  • Minghui Lin,
  • Yushun Liu and
  • Guozhen Zhu

28 August 2025

The Au–TiO2 interface plays a critical role in heterogeneous catalysis and nanostructure synthesis relevant to renewable energy applications. Using Au-seeded TiO2 nanowires as the model system, we observe that, in addition to the commonly repor...

  • Article
  • Open Access
56 Citations
5,279 Views
13 Pages

The Characterization and Modification of a Novel Bifunctional and Robust Alginate Lyase Derived from Marinimicrobium sp. H1

  • Junjun Yan,
  • Peng Chen,
  • Yan Zeng,
  • Yan Men,
  • Shicheng Mu,
  • Yueming Zhu,
  • Yefu Chen and
  • Yuanxia Sun

23 September 2019

Alginase lyase is an important enzyme for the preparation of alginate oligosaccharides (AOS), that possess special biological activities and is widely used in various fields, such as medicine, food, and chemical industry. In this study, a novel bifun...

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,056 Views
21 Pages

Fe-Ce/layered double hydroxides (LDHs) were synthesized via a facile route by exploiting the “structural memory” of the LDH when the calcined MgAlLDH and ZnAlLDH were reconstructed in the aqueous solutions of FeSO4/Ce(SO4)2. XRD analysis...

  • Article
  • Open Access
8 Citations
4,890 Views
21 Pages

Reconstruction of Electronic Structure of MOF-525 via Metalloporphyrin for Enhanced Photoelectro-Fenton Process

  • Chenhui Qi,
  • Shuaipeng Han,
  • Jialiang Lin,
  • Jianhua Cheng,
  • Kesi Du,
  • Yongyou Hu and
  • Yuancai Chen

19 June 2022

Photoelectro-Fenton (PEF) process can continuously promote the occurrence of Fenton reaction and the generation of active species, which is an advanced oxidation technology for pollutant degradation. However, the lack of bifunctional catalysts restri...

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,508 Views
12 Pages

Tuning Surface State in CoFe (Oxy)Hydroxide for Improved Oxygen Evolution Electrocatalysis

  • Wen Guo,
  • Chizhong Wang,
  • Lei Qiu,
  • Fanghua Liu,
  • Sizhe Chen and
  • Huazhen Chang

26 December 2024

CoFe-based catalysts have shown excellent activity for the oxygen evolution reaction (OER), with the oxidation states of the active sites playing a crucial role in determining catalytic performance. However, how to effectively increase the oxidation...

  • Feature Paper
  • Review
  • Open Access
5 Citations
2,071 Views
35 Pages

3 July 2025

Defect engineering has recently emerged as a cutting-edge discipline for precise modulation of electronic structures in nanomaterials, shifting the paradigm in nanoscience from passive ‘inherent defect tolerance’ to proactive ‘defec...

  • Article
  • Open Access
719 Views
14 Pages

Controlled Synthesis of Mesoporous Solid Polymer Electrolyte Au(Pt)NiCe/C Membrane Electrode for Electrocatalytic Hydrogenation

  • Shaqin Wang,
  • Yunhao Feng,
  • Liangming Duan,
  • Yueming Shang,
  • Huaihang Fan,
  • Ji Liu,
  • Jiahao Han,
  • Xiaoqi Wang and
  • Bin Yang

3 April 2025

This study presents a structurally tunable Au-based solid polymer electrolyte (SPE) membrane electrode with significantly enhanced performance in organic hydrogenation reactions. Compared to a Pt-based counterpart, the Au-based electrode achieved a 2...

  • Article
  • Open Access
3,299 Views
18 Pages

29 May 2022

The theory of the RNA world, especially with the catalytic capability of RNA, provides a reasonable framework explaining the evolution of molecular genetics system before the scenario of the central dogma. However, it remains a challenge to deduce th...

  • Article
  • Open Access
7 Citations
2,312 Views
21 Pages

28 December 2021

In this work, few-layer graphene materials were produced from Fe-lignin nanocomposites through a molecular cracking and welding (MCW) method. MCW process is a low-cost, scalable technique to fabricate few-layer graphene materials. It involves prepari...

  • Feature Paper
  • Review
  • Open Access
2,606 Views
19 Pages

3 November 2023

Swarms of self-propelled micromotors can mimic the processes of natural systems and construct artificial intelligent materials to perform complex collective behaviors. Compared to self-propelled Janus micromotors, the isotropic colloid motors, also c...

  • Article
  • Open Access
6 Citations
3,116 Views
17 Pages

23 March 2021

Cyanide is a hazardous and detrimental chemical that causes the inactivation of the respiration system through the inactivation of cytochrome c oxidase. Because of the limitation in the number of cyanide-degrading enzymes, there is a great demand to...

  • Article
  • Open Access
2 Citations
2,236 Views
19 Pages

18 January 2024

In electrocatalytic processes, traditional powder/film electrodes inevitably suffer from damage or deactivation, reducing their catalytic performance and stability. In contrast, self-healing electrocatalysts, through special structural design or comp...

  • Article
  • Open Access
1 Citations
2,775 Views
18 Pages

A Simple Angle-Resolved Thermal Molecular Beam Reactor: Applied to CO Oxidation on Pt{110}

  • Michael Bowker,
  • Björn Udo Klink,
  • Kristian Lass and
  • Roger A. Bennett

23 October 2020

We developed a simple form of thermal molecular beam catalytic reactor system which is capable of measuring sticking probabilities and reaction probabilities, together with angle-resolved scattering of molecules and products during catalytic reaction...

  • Article
  • Open Access
14 Citations
4,234 Views
13 Pages

Atmospheric Response to EEP during Geomagnetic Disturbances

  • Dmitry Grankin,
  • Irina Mironova,
  • Galina Bazilevskaya,
  • Eugene Rozanov and
  • Tatiana Egorova

30 January 2023

Energetic electron precipitation (EEP) is associated with solar activity and space weather and plays an important role in the Earth’s polar atmosphere. Energetic electrons from the radiation belt precipitate into the atmosphere during geomagnet...

  • Review
  • Open Access
17 Citations
5,455 Views
21 Pages

4 October 2023

The tyrosine kinase family receptor of discoidin domain receptors (DDR1 and DDR2) is known to be activated by extracellular matrix collagen catalytic binding protein receptors. They play a remarkable role in cell proliferation, differentiation, migra...

  • Article
  • Open Access
4 Citations
2,465 Views
20 Pages

30 July 2023

In this work, the catalytic mechanism of loganic acid methyltransferase was characterized at the molecular level. This enzyme is responsible for the biosynthesis of loganin, which is a precursor for a wide range of biologically active compounds. Due...

  • Article
  • Open Access
7 Citations
3,625 Views
16 Pages

An Advanced Approach for MgZnAl-LDH Catalysts Synthesis Used in Claisen-Schmidt Condensation

  • Rodica Zăvoianu,
  • Silvana-Denisa Mihăilă,
  • Bogdan Cojocaru,
  • Mădălina Tudorache,
  • Vasile I. Pârvulescu,
  • Octavian Dumitru Pavel,
  • Solon Oikonomopoulos and
  • Elisabeth Egholm Jacobsen

8 July 2022

Using organic-base tetramethylammonium hydroxide (TMAH) is a viable, cheap, and fast option for the synthesis of MgZnAl-LDH-type materials by both co-precipitation and mechano-chemical methods. TMAH presents several advantages, such as the smaller qu...

  • Article
  • Open Access
2 Citations
2,331 Views
15 Pages

22 April 2024

Xylanase is an essential component used to hydrolyze the xylan in wheat flour to enhance the quality of bread. Presently, cold-activated xylanase is popularly utilized to aid in the development of dough. In this study, ancestral sequence reconstructi...

  • Article
  • Open Access
3 Citations
2,628 Views
14 Pages

10 January 2023

Direct electrochemical oxidation, as an economical and efficient method, has recently received increasing attention for ammonia-nitrogen wastewater treatment. Developing a low-cost, efficient catalytic electrode is the key to solve the problem of slu...

  • Review
  • Open Access
2 Citations
2,431 Views
16 Pages

10 May 2024

Hydrogen, one of the most promising forms of new energy sources, due to its high energy density, low emissions, and potential to decarbonize various sectors, has attracted significant research attention. It is known that electrocatalytic hydrogen pro...

  • Review
  • Open Access
1 Citations
1,124 Views
14 Pages

The Sleeping Beauty Transposable Element: Evolution, Regulation and Genetic Applications

  • Zoltán Ivics,
  • Christopher D. Kaufman,
  • Hatem Zayed,
  • Csaba Miskey,
  • Oliver Walisko and
  • Zsuzsanna Izsvák

Members of the Tc1/mariner superfamily of transposable elements isolated from vertebrate species are inactive due to the accumulation of mutations. A representative of a subfamily of fish elements estimated to be last active >10 million years ago...

  • Article
  • Open Access
2 Citations
2,778 Views
19 Pages

Modified Natural Dolomite and Its Influence on the Production of Glycerol Carbonate: Effects of Structural and Basicity Properties

  • Julio González-García,
  • Lifang Chen,
  • Omar Campuzano-Calderon,
  • Sara Núñez-Correa,
  • Enrique A. López-Guajardo,
  • Jin An Wang and
  • Alejandro Montesinos-Castellanos

1 May 2021

A systematic study over different treatment conditions, including hydrothermal and acid-thermal, was successfully carried out to determine the most suitable conditions to enhance the textural properties and surface chemical composition of natural dol...

  • Article
  • Open Access
3 Citations
2,790 Views
16 Pages

Copper and Iron Cooperation on Micro-Spherical Silica during Methanol Synthesis via CO2 Hydrogenation

  • Serena Todaro,
  • Francesco Frusteri,
  • Dariusz Wawrzyńczak,
  • Izabela Majchrzak-Kucęba,
  • Juan-Francisco Pérez-Robles,
  • Catia Cannilla and
  • Giuseppe Bonura

31 May 2022

A series of mono- and bi-metallic copper and iron samples were prepared by impregnation method on micro-spherical silica and used for the synthesis of methanol via CO2 hydrogenation. Compared with conventional carrier oxides, micro-spherical silica h...

  • Article
  • Open Access
4 Citations
2,342 Views
11 Pages

Preparation of Aluminum–Molybdenum Alloy Thin Film Oxide and Study of Molecular CO + NO Conversion on Its Surface

  • Tamerlan T. Magkoev,
  • Dzhamilya G. Mustafaeva,
  • Vladislav B. Zaalishvili,
  • Oleg G. Ashkhotov and
  • Zaurbek T. Sozaev

18 March 2022

Adsorption and interaction of carbon monoxide (CO) and nitric oxide (NO) molecules on the surface of bare Al-Mo(110) system and on that obtained by its in situ oxidation have been studied in ultra-high vacuum (base pressure: ca. 10−8 Pa) by mea...

  • Communication
  • Open Access
1 Citations
2,461 Views
9 Pages

14 February 2024

Nanomaterials play a crucial role in various aspects of modern life. Zirconia nanoparticles, extensively employed in medicine for fortifying and stabilizing implants in reconstructive medicine, exhibit unique electrical, thermal, catalytic, sensory,...

  • Review
  • Open Access
3 Citations
4,996 Views
21 Pages

Engineering the 2-Oxoglutarate Dehydrogenase Complex to Understand Catalysis and Alter Substrate Recognition

  • Joydeep Chakraborty,
  • Natalia Nemeria,
  • Yujeong Shim,
  • Xu Zhang,
  • Elena L. Guevara,
  • Hetal Patel,
  • Edgardo T. Farinas and
  • Frank Jordan

1 February 2022

The E. coli 2-oxoglutarate dehydrogenase complex (OGDHc) is a multienzyme complex in the tricarboxylic acid cycle, consisting of multiple copies of three components, 2-oxoglutarate dehydrogenase (E1o), dihydrolipoamide succinyltransferase (E2o) and d...

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