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Nanomaterials
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Core-Shell Nanostructures for Energy Storage and Conversion
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Core-Shell Nanostructures for Energy Storage and Conversion

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (2 January 2023) | Viewed by 11849

Special Issue Editors

Prof. Dr. Zhipeng Sun

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Guest Editor
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Interests: the synthesis of novel nanomaterials with higher energy and power electrical energy storage capability
Dr. Bin Dong

E-Mail Website
Guest Editor
State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China
Interests: new energy photocatalytic materials and photoelectric conversion mechanism
Dr. Dong Xie

E-Mail Website
Guest Editor
Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
Interests: sodium-ion batteries; lithium-sulfur batteries; waste biomass resource utilization and environmental protection energy storage materials

Special Issue Information

Dear Colleagues,

The booming development of the economy and society is constantly changing our daily life. People are surrounded by various electronic devices that require high-performance energy storage. Supercapacitors and batteries are typical energy storage devices based on reversible electrochemical reaction on the surface of electrode materials, or in the bulk. Different energy storage mechanisms have different advantages, such as high-power density for supercapacitors and high energy density for batteries, providing the possibility of utilizing them complementarily in practical applications, such as electrical vehicles and portable devices. In general, the key scientific issues of energy storage are ion diffusion and electron transport in electrodes and electrolytes. In the last decade, many different types of nanomaterials with core-shell nanostructures, ranging from carbon materials and transition metal oxides/sulfides/carbides to conducting polymers, have been widely studied to improve energy storage performance.

We invite authors to contribute original research articles or comprehensive review articles covering the most recent progress and new developments in the design, synthesis and characterization of nanomaterials with core-shell nanostructures. All possible applications of energy storage and conversion must be explored.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • The development, synthesis, and fabrication of nanomaterials with core-shell nanostructure for energy storage and conversion applications;
  • Nanocomposites with core-shell nanostructure for energy storage and conversion;
  • Characterization techniques for nanomaterials with core-shell nanostructure;

This Special Issue aims to collect high-quality research papers and review articles that focus on the design, fabrication, and advanced characterization of nanomaterials with core-shell nanostructures, for energy storage.

We look forward to receiving your contributions.

Prof. Dr. Zhipeng Sun
Dr. Bin Dong
Dr. Dong Xie
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Core-shell nanostructures
  • Nanomaterials
  • Supercapacitors
  • Li-ion batteries
  • Na/K/Zn/Al-ion batteries
  • Electrocatalyst

Published Papers (6 papers)

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Editorial

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2 pages, 162 KiB  
Editorial
Editorial: Core–Shell Nanostructures for Energy Storage and Conversion
by Zhipeng Sun and Ruiying Wang
Nanomaterials 2023, 13(3), 589; https://doi.org/10.3390/nano13030589 - 1 Feb 2023
Viewed by 778
Abstract
Owing to their special physical and chemical properties, nanomaterials with core–shell structures have been extensively synthesized and widely studied in the field of energy storage and conversion [...] Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)

Research

Jump to: Editorial

9 pages, 1350 KiB  
Communication
Cd3P2/Zn3P2 Core-Shell Nanocrystals: Synthesis and Optical Properties
by Benjamin F. P. McVey, Robert A. Swain, Delphine Lagarde, Wilfried-Solo Ojo, Kaltoum Bakkouche, Cécile Marcelot, Bénédicte Warot, Yann Tison, Hervé Martinez, Bruno Chaudret, Céline Nayral and Fabien Delpech
Nanomaterials 2022, 12(19), 3364; https://doi.org/10.3390/nano12193364 - 27 Sep 2022
Cited by 3 | Viewed by 1579
Abstract
II–V semiconductor nanocrystals such as Cd3P2 and Zn3P2 have enormous potential as materials in next-generation optoelectronic devices requiring active optical properties across the visible and infrared range. To date, this potential has been unfulfilled due to their [...] Read more.
II–V semiconductor nanocrystals such as Cd3P2 and Zn3P2 have enormous potential as materials in next-generation optoelectronic devices requiring active optical properties across the visible and infrared range. To date, this potential has been unfulfilled due to their inherent instability with respect to air and moisture. Core-shell system Cd3P2/Zn3P2 is synthesized and studied from structural (morphology, crystallinity, shell diameter), chemical (composition of core, shell, and ligand sphere), and optical perspectives (absorbance, emission-steady state and time resolved, quantum yield, and air stability). The improvements achieved by coating with Zn3P2 are likely due to its identical crystal structure to Cd3P2 (tetragonal), highlighting the key role crystallographic concerns play in creating cutting edge core-shell NCs. Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)
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8 pages, 5563 KiB  
Article
Metal-Organic Framework-Derived NiSe Embedded into a Porous Multi-Heteroatom Self-Doped Carbon Matrix as a Promising Anode for Sodium-Ion Battery
by Xiaoyan Shi, Lujun Fang, Handong Peng, Xizhan Deng and Zhipeng Sun
Nanomaterials 2022, 12(19), 3345; https://doi.org/10.3390/nano12193345 - 26 Sep 2022
Cited by 15 | Viewed by 1772
Abstract
A self-doping strategy is applied to prepare a multi-heteroatom-doped carbonaceous nickel selenide NiSe@C composite by introducing N and P-containing ligand hexa(4-carboxyl-phenoxy)-cyclotriphosphazene (HCTP-COOH) into a Ni-based MOF precursor. The MOF-derived NiSe@C composite is characterized as NiSe particles nested in a multi-heteroatom-doped carbon matrix. The [...] Read more.
A self-doping strategy is applied to prepare a multi-heteroatom-doped carbonaceous nickel selenide NiSe@C composite by introducing N and P-containing ligand hexa(4-carboxyl-phenoxy)-cyclotriphosphazene (HCTP-COOH) into a Ni-based MOF precursor. The MOF-derived NiSe@C composite is characterized as NiSe particles nested in a multi-heteroatom-doped carbon matrix. The multi-heteroatom-doped NiSe@C composite with a unique structure shows an excellent sodium-ion storage property. The Na-ion battery from the NiSe@C electrode exhibits a capacity of 447.8 mA h g−1 at 0.1 A g−1, a good rate capability (240.3 mA h g−1 at 5.0 A g−1), and excellent cycling life (227.8 mAh g−1 at 5.0 A g−1 for 1200). The prospects of the synthesis methodology and application of NiSe@C in sodium-ion batteries (SIBs) devices are presented. Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)
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10 pages, 2288 KiB  
Communication
Chemical Transformation Induced Core–Shell Ni2P@Fe2P Heterostructures toward Efficient Electrocatalytic Oxygen Evolution
by Huijun Song, Jingjing Li, Guan Sheng, Ruilian Yin, Yanghang Fang, Shigui Zhong, Juan Luo, Zhi Wang, Ahmad Azmin Mohamad and Wei Shao
Nanomaterials 2022, 12(18), 3153; https://doi.org/10.3390/nano12183153 - 11 Sep 2022
Cited by 4 | Viewed by 2047
Abstract
The oxygen evolution reaction (OER) is a crucial reaction in water splitting, metal–air batteries, and other electrochemical conversion technologies. Rationally designed catalysts with rich active sites and high intrinsic activity have been considered as a hopeful strategy to address the sluggish kinetics for [...] Read more.
The oxygen evolution reaction (OER) is a crucial reaction in water splitting, metal–air batteries, and other electrochemical conversion technologies. Rationally designed catalysts with rich active sites and high intrinsic activity have been considered as a hopeful strategy to address the sluggish kinetics for OER. However, constructing such active sites in non-noble catalysts still faces grand challenges. To this end, we fabricate a Ni2P@Fe2P core–shell structure with outperforming performance toward OER via chemical transformation of rationally designed Ni-MOF hybrid nanosheets. Specifically, the Ni-MOF nanosheets and their supported Fe-based nanomaterials were in situ transformed into porous Ni2P@Fe2P core–shell nanosheets composed of Ni2P and Fe2P nanodomains in homogenous dispersion via a phosphorization process. When employed as the OER electrocatalyst, the Ni2P@Fe2P core–shell nanosheets exhibits excellent OER performance, with a low overpotential of 238/247 mV to drive 50/100 mA cm−2, a small Tafel slope of 32.91 mV dec−1, as well as outstanding durability, which could be mainly ascribed to the strong electronic interaction between Ni2P and Fe2P nanodomains stabilizing more Ni and Fe atoms with higher valence. These high-valence metal sites promote the generation of high-active Ni/FeOOH to enhance OER activity. Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)
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12 pages, 28558 KiB  
Communication
Construction of Core–Shell CoMoO4@γ-FeOOH Nanosheets for Efficient Oxygen Evolution Reaction
by Huijun Song, Jingjing Li, Guan Sheng, Yinling Zhang, Ahmad Azmin Mohamad, Juan Luo, Zhangnan Zhong and Wei Shao
Nanomaterials 2022, 12(13), 2215; https://doi.org/10.3390/nano12132215 - 28 Jun 2022
Cited by 8 | Viewed by 2038
Abstract
The oxygen evolution reaction (OER) occurs at the anode in numerous electrochemical reactions and plays an important role due to the nature of proton-coupled electron transfer. However, the high voltage requirement and low stability of the OER dramatically limits the total energy converting [...] Read more.
The oxygen evolution reaction (OER) occurs at the anode in numerous electrochemical reactions and plays an important role due to the nature of proton-coupled electron transfer. However, the high voltage requirement and low stability of the OER dramatically limits the total energy converting efficiency. Recently, electrocatalysts based on multi-metal oxyhydroxides have been reported as excellent substitutes for commercial noble metal catalysts due to their outstanding OER activities. However, normal synthesis routes lead to either the encapsulation of excessively active sites or aggregation during the electrolysis. To this end, we design a novel core–shell structure integrating CoMoO4 as support frameworks covered with two-dimensional γ-FeOOH nanosheets on the surface. By involving CoMoO4, the electrochemically active surface area is significantly enhanced. Additionally, Co atoms immerge into the γ-FeOOH nanosheet, tuning its electronic structure and providing additional active sites. More importantly, the catalysts exhibit excellent OER catalytic performance, reducing overpotentials to merely 243.1 mV a versus 10 mA cm−2. The current strategy contributes to advancing the frontiers of new types of OER electrocatalysts by applying a proper support as a multi-functional platform. Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)
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10 pages, 1974 KiB  
Article
Preparation and Electrochemical Characterization of Si@C Nanoparticles as an Anode Material for Lithium-Ion Batteries via Solvent-Assisted Wet Coating Process
by Jongha Hwang, Mincheol Jung, Jin-Ju Park, Eun-Kyung Kim, Gunoh Lee, Kyung Jin Lee, Jae-Hak Choi and Woo-Jin Song
Nanomaterials 2022, 12(10), 1649; https://doi.org/10.3390/nano12101649 - 12 May 2022
Cited by 11 | Viewed by 2688
Abstract
Silicon-based electrodes are widely recognized as promising anodes for high-energy-density lithium-ion batteries (LIBs). Silicon is a representative anode material for next-generation LIBs due to its advantages of being an abundant resource and having a high theoretical capacity and a low electrochemical reduction potential. [...] Read more.
Silicon-based electrodes are widely recognized as promising anodes for high-energy-density lithium-ion batteries (LIBs). Silicon is a representative anode material for next-generation LIBs due to its advantages of being an abundant resource and having a high theoretical capacity and a low electrochemical reduction potential. However, its huge volume change during the charge–discharge process and low electrical conductivity can be critical problems in its utilization as a practical anode material. In this study, we solved the problem of the large volume expansion of silicon anodes by using the carbon coating method with a low-cost phenolic resin that can be used to obtain high-performance LIBs. The surrounding carbon layers on the silicon surface were well made from a phenolic resin via a solvent-assisted wet coating process followed by carbonization. Consequently, the electrochemical performance of the carbon-coated silicon anode achieved a high specific capacity (3092 mA h g−1) and excellent capacity retention (~100% capacity retention after 50 cycles and even 64% capacity retention after 100 cycles at 0.05 C). This work provides a simple but effective strategy for the improvement of silicon-based anodes for high-performance LIBs. Full article
(This article belongs to the Special Issue Core-Shell Nanostructures for Energy Storage and Conversion)
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