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Nanomaterials
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Nanomaterials for Electrochemical Catalysis and Energy Storage Applications
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Nanomaterials for Electrochemical Catalysis and Energy Storage Applications

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

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 2303

Special Issue Editors

Dr. Hanfeng Liang

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Guest Editor
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
Interests: nanomaterials; functional coatings; electrocatalysis; electrochemical energy storage
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yi-Zhou Zhang

grade E-Mail Website
Guest Editor
Institute of Advanced Materials and Flexible Electronics (IAMFE), School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, China
Interests: printed electronics; flexible electrochemical energy storage; MXene; hydrogels; 3D printing
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Guoyin Zhu

E-Mail Website
Guest Editor
Institute of Advanced Materials and Flexible Electronics (IAMFE), School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, China
Interests: electrochemical energy storage; nanoporous materials; flexible electronics

Special Issue Information

Dear Colleagues,

Energy and the environment are the two big issues facing our society. To achieve a sustainable energy future and minimize environmental pollution, we need to reduce fossil fuel consumption and increase the utilization of renewable energy. In this regard, efficient energy storage and conversion devices (e.g., water electrolyzers, fuel cells, batteries, and supercapacitors) are needed. It is noted that the efficiency of these devices essentially depends on the properties of the electrode materials. Therefore, rational design and modification of electrode materials are of great importance.

A remarkable improvement in the performances of electrochemical energy storage and conversion devices has been achieved through recent advances in nanomaterials. Furthermore, the rapid growth of machine learning, along with other artificial intelligent algorithms, has significantly accelerated the discovery of new electrode materials with high performance.

In this Special Issue, both original experimental studies and theoretical simulations and a combination of these two approaches, focusing on the underlying mechanism or new electrode nanomaterials for electrochemical catalysis and energy storage applications, are welcomed. Additionally, high-quality review papers are also welcomed.

Dr. Hanfeng Liang
Prof. Dr. Yi-Zhou Zhang
Prof. Dr. Guoyin Zhu
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

  • nanomaterials
  • electrocatalysis
  • energy storage
  • electrodes
  • batteries
  • supercapacitors

Published Papers (2 papers)

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Research

13 pages, 4940 KiB  
Article
Electrochemical Investigations of Double Perovskite M2NiMnO6 (Where M = Eu, Gd, Tb) for High-Performance Oxygen Evolution Reaction
by Kiran P. Shinde, Harish S. Chavan, Amol S. Salunke, Jeongseok Oh, Abu Talha Aqueel Ahmed, Nabeen K. Shrestha, Hyunsik Im, Joonsik Park and Akbar I. Inamdar
Nanomaterials 2023, 13(23), 3076; https://doi.org/10.3390/nano13233076 - 04 Dec 2023
Cited by 1 | Viewed by 993
Abstract
Double perovskites are known for their special structures which can be utilized as catalyst electrode materials for electrochemical water splitting to generate carbon-neutral hydrogen energy. In this work, we prepared lanthanide series metal-doped double perovskites at the M site such as M2 [...] Read more.
Double perovskites are known for their special structures which can be utilized as catalyst electrode materials for electrochemical water splitting to generate carbon-neutral hydrogen energy. In this work, we prepared lanthanide series metal-doped double perovskites at the M site such as M2NiMnO6 (where M = Eu, Gd, Tb) using the solid-state reaction method, and they were investigated for an oxygen evolution reaction (OER) study in an alkaline medium. It is revealed that the catalyst with a configuration of Tb2NiMnO6 has outstanding OER properties such as a low overpotential of 288 mV to achieve a current density of 10 mAcm−2, a lower Tafel slope of 38.76 mVdec−1, and a long cycling stability over 100 h of continuous operation. A-site doping causes an alteration in the oxidation or valence states of the NiMn cations, their porosity, and the oxygen vacancies. This is evidenced in terms of the Mn4+/Mn3+ ratio modifying electronic properties and the surface which facilitates the OER properties of the catalyst. This is discussed using electrochemical impedance spectroscopy (EIS) and electrochemical surface area (ECSA) of the catalysts. The proposed work is promising for the synthesis and utilization of future catalyst electrodes for high-performance electrochemical water splitting. Full article
(This article belongs to the Special Issue Nanomaterials for Electrochemical Catalysis and Energy Storage Applications)
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12 pages, 3341 KiB  
Article
Reduced Graphene Oxide-Supported Iron-Cobalt Alloys as High-Performance Catalysts for Oxygen Reduction Reaction
by Jun Dong, Shanshan Wang, Peng Xi, Xinggao Zhang, Xinyu Zhu, Huining Wang and Taizhong Huang
Nanomaterials 2023, 13(19), 2735; https://doi.org/10.3390/nano13192735 - 09 Oct 2023
Cited by 1 | Viewed by 959
Abstract
Exploring non-precious metal-based catalysts for oxygen reduction reactions (ORR) as a substitute for precious metal catalysts has attracted great attention in recent times. In this paper, we report a general methodology for preparing nitrogen-doped reduced graphene oxide (N–rGO)-supported, FeCo alloy (FeCo@N–rGO)-based catalysts for [...] Read more.
Exploring non-precious metal-based catalysts for oxygen reduction reactions (ORR) as a substitute for precious metal catalysts has attracted great attention in recent times. In this paper, we report a general methodology for preparing nitrogen-doped reduced graphene oxide (N–rGO)-supported, FeCo alloy (FeCo@N–rGO)-based catalysts for ORR. The structure of the FeCo@N–rGO based catalysts is investigated using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and transition electron microscopy, etc. Results show that the FeCo alloy is supported by the rGO and carbon that derives from the organic ligand of Fe and Co ions. The eletrocatalytic performance is examined by cyclic voltammetry, linear scanning voltammetry, Tafel, electrochemical spectroscopy impedance, rotate disc electrode, and rotate ring disc electrode, etc. Results show that FeCo@N–rGO based catalysts exhibit an onset potential of 0.98 V (vs. RHE) and a half-wave potential of 0.93 V (vs. RHE). The excellent catalytic performance of FeCo@N–rGO is ascribed to its large surface area and the synergistic effect between FeCo alloy and N–rGO, which provides a large number of active sites and a sufficient surface area. Full article
(This article belongs to the Special Issue Nanomaterials for Electrochemical Catalysis and Energy Storage Applications)
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