Special Issue "Novel Non-Precious Metal Electrocatalysts for Oxygen Electrode Reactions"

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

Deadline for manuscript submissions: 31 May 2018

Special Issue Editors

Guest Editor
Prof. Dr. Nicolas Alonso-Vante

Laboratory of Electrocatalysis, UMR-CNRS 6503, University of Poitiers, 86022 Poitiers, France
Website | E-Mail
Phone: 00 33 (0)549453625
Interests: (photo)-electrochemistry and (photo)-electrocatalysis of novel materials; fuel generation; interfacial characterization and surface analytical techniques (ORR-, HER-, OER-electrocatalysis, energy and fuels, nanomaterials, micro-fuel cells)
Guest Editor
Prof. Dr. Yongjun Feng

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology (BUCT), No. 15, Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
Website1 | Website2 | E-Mail
Interests: non-platinum metal electrocatalysts; oxygen reduction reaction (ORR); oxygen evolution reaction (OER), multifunctional layered nanomaterials; layered double hydroxides (LDHs); high-performance adsorption materials; removal of heavy metals and phosphate
Guest Editor
Prof. Dr. Hui Yang

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai Pudong New Area, Haike Road No. 99, Shanghai, 201210, China
Website | E-Mail
Interests: Pt-based electrocatalysts for fuel cells’ reaction non-precious metal catalyst for hydrogen oxidation and oxygen reduction reactions; new proton exchange membrane with high stability; direct methanol fuel cells; energy storage materials

Special Issue Information

Dear Colleagues,

Increasing inevitable global demands for energy have stimulated considerable research on alternative energy harvesting technologies, conversion and storage systems with high efficiency, cost-effective and environmentally friendly systems, such as fuel cells, rechargeable metal-air batteries, unitized regenerative cells, and water electrolyzers. In these devices, the conversion between oxygen and water plays a key step in the development of oxygen electrodes: Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). To date, the state-of-art catalysts for ORR consist of platinum-based materials (Pt), while ruthenium (Ru)- and iridium (Ir)-oxides are the best-known OER catalyst materials. The scarcity of precious metals, their prohibitive cost, and declining activity greatly hamper the practice for large-scale applications. It is of paramount practical importance and interest to develop efficient and stable materials for the oxygen electrode, based on Earth-abundant non-noble metals. With the fast development of advanced nanotechnology, novel non-precious metal electrocatalysts for the oxygen reactions have been explored based on the innovative design in chemical compositions, structure, and morphology, and supports.

This Special Issue aims to cover recent progress and advances in novel non-precious metal electrocatalysts tailoring with high activity and stablity for the catalytic conversion between water and oxygen. Additionally, electrocatalytic activity, selectivity, durability, and mechanism for single or bifunctional oxygen electrode reactions should be important subjects for this Special Issue.

Prof. Dr. Nicolas Alonso-Vante
Prof. Dr. Yongjun Feng
Prof. Dr. Hui Yang
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 papers will be 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 1300 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

  • Non-precious metal electrocatalysts
  • oxygen reduction reaction
  • oxygen evolution reaction
  • bifunctional electrocatalysts
  • electrocatalytic activity
  • electrocatalytic selectivity
  • electrocatalytic durability, unitizes fuel cells.

Published Papers (2 papers)

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Research

Open AccessArticle Preparation of Ag4Bi2O5/MnO2 Corn/Cob Like Nano Material as a Superior Catalyst for Oxygen Reduction Reaction in Alkaline Solution
Catalysts 2017, 7(12), 379; doi:10.3390/catal7120379
Received: 21 October 2017 / Revised: 30 November 2017 / Accepted: 30 November 2017 / Published: 6 December 2017
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Abstract
Ag4Bi2O5/MnO2 nano-sized material was synthesized by a co-precipitation method in concentrated KOH solution. The morphology characterization indicates that MnO2 nanoparticles with a size of 20 nm are precipitated on the surface of nano Ag4
[...] Read more.
Ag4Bi2O5/MnO2 nano-sized material was synthesized by a co-precipitation method in concentrated KOH solution. The morphology characterization indicates that MnO2 nanoparticles with a size of 20 nm are precipitated on the surface of nano Ag4Bi2O5, forming a structure like corn on the cob. The obtained material with 60% Mn offers slightly higher initial potential (0.098 V vs. Hg/HgO) and limiting current density (−5.67 mA cm−2) at a rotating speed of 1600 rpm compared to commercial Pt/C (−0.047 V and −5.35 mA cm−2, respectively). Furthermore, the obtained material exhibits superior long-term durability and stronger methanol tolerance than commercial Pt/C. The remarkable features suggest that the Ag4Bi2O5/MnO2 nano-material is a very promising oxygen reduction reaction catalyst. Full article
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Open AccessArticle A Novel Metal–Organic Framework Route to Embed Co Nanoparticles into Multi-Walled Carbon Nanotubes for Effective Oxygen Reduction in Alkaline Media
Catalysts 2017, 7(12), 364; doi:10.3390/catal7120364
Received: 1 November 2017 / Revised: 22 November 2017 / Accepted: 23 November 2017 / Published: 27 November 2017
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Abstract
Metal–organic framework (MOF) materials can be used as precursors to prepare non-precious metal catalysts (NPMCs) for oxygen reduction reaction (ORR). Herein, we prepared a novel MOF material (denoted as Co-bpdc) and then combined it with multi-walled carbon nanotubes (MWCNTs) to form Co-bpdc/MWCNTs composites.
[...] Read more.
Metal–organic framework (MOF) materials can be used as precursors to prepare non-precious metal catalysts (NPMCs) for oxygen reduction reaction (ORR). Herein, we prepared a novel MOF material (denoted as Co-bpdc) and then combined it with multi-walled carbon nanotubes (MWCNTs) to form Co-bpdc/MWCNTs composites. After calcination, the cobalt ions from Co-bpdc were converted into Co nanoparticles, which were distributed in the graphite carbon layers and MWCNTs to form Co-bpdc/MWCNTs. The prepared catalysts were characterized by TEM (Transmission electron microscopy), XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), BET (Brunauer–Emmett–Teller), and Raman spectroscopy. The electrocatalytic activity was measured by using rotating disk electrode (RDE) voltammetry. The catalysts showed higher ORR catalytic activity than the commercial Pt/C catalyst in alkaline solution. Co-bpdc/MWCNTs-100 showed the highest ORR catalytic activity, with an initial reduction potential and half-wave potential reaching 0.99 V and 0.92 V, respectively. The prepared catalysts also showed superior stability and followed the 4-electron pathway ORR process in alkaline solution. Full article
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