Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.3
3.9
Journals
Catalysts
Special Issues
Metal Nanomaterials for Electrocatalysis
share announcement

Metal Nanomaterials for Electrocatalysis

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: closed (31 October 2019)

Special Issue Editor

Prof. Dr. Sang-Il Choi

E-Mail Website
Guest Editor
Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University 80 Daehak-ro, Buk-gu, Daegu 41566, Korea
Interests: shape-, size-, and composition-controlled synthesis of metal nanocrystals; electrocatalysis; polymer electrolyte membrane fuel cells; water electrolysis

Special Issue Information

Dear Colleagues,

Synthesis of novel metal nanomaterials has emerged as one of the leading topics of electrocatalysis in recent years. This great interest in nanomaterial arises not only from the enlargement of the catalytic surface area but also from the controllable composition, size, and morphology, possibly substantially improving the reaction efficiency and reducing the material cost. Accordingly, catalytic applications of the advanced metal nanomaterials are extensively explored in various electrochemical redox reactions, such as oxygen reduction, liquid fuel oxidation, hydrogen evolution, and oxygen evolution.

This special issue aims to explore the most recent advances of metal nanomaterials in the field of electrocatalysis. Such metal nanomaterials include, but are not limited to, metal oxides, metal chalcogenides, and perovskites.

Prof. Dr. Sang-Il Choi
Guest Editor

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. Catalysts is an international peer-reviewed open access monthly 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 2700 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

  • polymer electrolyte membrane fuel cells
  • direct liquid fuel cells
  • water electrolysis
  • noble metal nanomaterials
  • non-noble metal nanomaterials
  • shape- and morphology-control
  • oxygen reduction
  • liquid fuel oxidation
  • hydrogen evolution
  • oxygen evolution

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

10 pages, 3377 KiB  
Article
Ab Initio-Based Structural and Thermodynamic Aspects of the Electrochemical Lithiation of Silicon Nanoparticles
by Seung-Eun Lee, Hyung-Kyu Lim and Sangheon Lee
Catalysts 2020, 10(1), 8; https://doi.org/10.3390/catal10010008 - 19 Dec 2019
Cited by 5 | Viewed by 3750
Abstract
We reported the theoretical understandings of the detailed structural and thermodynamic mechanism of the actual lithiation process of silicon nanoparticle systems based on atomistic simulation approaches. We found that the rearrangement of the Si bonding network is the key mechanism of the lithiation [...] Read more.
We reported the theoretical understandings of the detailed structural and thermodynamic mechanism of the actual lithiation process of silicon nanoparticle systems based on atomistic simulation approaches. We found that the rearrangement of the Si bonding network is the key mechanism of the lithiation process, and that it is less frequently broken by lithiation in the smaller sizes of Si nanoparticles. The decreased lithiation ability of the Si nanoparticles results in the lithiation potential being significantly lower than that of crystalline silicon phases, which impedes the full usage of the theoretical maximum capacity. Thus, nanosized Si materials could have a negative effect on performance if they become too fine-sized. These findings provide a detailed view of the electrochemical lithiation process of silicon nanoparticles (Si NPs) and engineering guidelines for designing new Si-based nanostructured materials. Full article
(This article belongs to the Special Issue Metal Nanomaterials for Electrocatalysis)
►▼ Show Figures

Figure 1

13 pages, 3300 KiB  
Article
In-Situ Arc Discharge-Derived FeSn2/Onion-Like Carbon Nanocapsules as Improved Stannide-Based Electrocatalytic Anode Materials for Lithium-Ion Batteries
by Dandan Han, Amrita Chatterjee, Long Hin Man and Siu Wing Or
Catalysts 2019, 9(11), 950; https://doi.org/10.3390/catal9110950 - 13 Nov 2019
Cited by 7 | Viewed by 2968
Abstract
Core/shell-structured FeSn2/onion-like carbon (FeSn2/OLC) nanocapsules of confined size range of sub-50 nm are synthesized via an in-situ arc-discharge process, and are evaluated in comparison with FeSn2 nanoparticles as an improved stannide-based electrocatalytic anode material for Li-ion batteries (LIBs). [...] Read more.
Core/shell-structured FeSn2/onion-like carbon (FeSn2/OLC) nanocapsules of confined size range of sub-50 nm are synthesized via an in-situ arc-discharge process, and are evaluated in comparison with FeSn2 nanoparticles as an improved stannide-based electrocatalytic anode material for Li-ion batteries (LIBs). The in-situ arc-discharge process allows a facile one-pot procedure for forming crystalline FeSn2 stannide alloy nanoparticle cores coated by defective OLC thin shells in addition to a confined crystal growth of the FeSn2 nanoparticle cores. The LIB cells assembled using the FeSn2/OLC nanocapsules as the electrocatalytic anodes exhibit superior full specific discharge capacity of 519 mAh·g−1 and specific discharge capacity retention of ~62.1% after 100 charge-discharge cycles at 50 mA·g−1 specific current. The electrochemical stability of FeSn2/OLC nanocapsules is demonstrated from the good cycle stability of the LIBs with a high specific discharge capacity retention of 67.5% on a drastic change in specific current from 4000 to 50 mA·g−1. A formation mechanism is proposed to describe the confined crystal growth of the FeSn2 nanoparticle cores and the formation of the FeSn2/OLC core/shell structure. The observed electrochemical performance enhancement is ascribed to the synergetic effects of the enabling of a reversible lithiation process during charge-discharge of the LIB cells by the FeSn2 nanoparticle cores as well as the protection of the FeSn2 nanoparticle cores from volume change-induced pulverization and solid electrolyte interphase-induced passivation by the OLC shells. Full article
(This article belongs to the Special Issue Metal Nanomaterials for Electrocatalysis)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop