Bifunctional Catalysts for Oxygen Electrodes

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Electrocatalysis".

Deadline for manuscript submissions: closed (15 November 2020) | Viewed by 4594

Special Issue Editors


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Guest Editor
Institute of Carbochemistry, CSIC-Spanish National Research Council, C/. Miguel Luesma Castán, 4, 50018 Zaragoza, Spain
Interests: metal-air batteries; iron-air batteries; bifunctional catalysts, oxygen electrocatalysis, synthesis of carbon-based materials; fuel cells catalysts and electrochemical systems; low temperature fuel cells

E-Mail Website
Guest Editor
Institute of Carbochemistry, CSIC-Spanish National Research Council, C/. Miguel Luesma Castán, 4, 50018 Zaragoza, Spain
Interests: energy and environment; catalysis; carbon materials; graphene; carbon nanofibers; electrochemistry; fuel cells; water electrolysis; carbon dioxide electro-reduction
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Instituto de Carboquímica, Consejo Superior de Investigaciones Científicas, Miguel Luesma Castán, 4. E-50018 Zaragoza, Spain
Interests: pd-ni catalysts; carbon nanofibers; alkaline medium; CO oxidation; methanol oxidation; direct methanol fuel cells
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Collleagues,

The development of bifunctional materials that are able to catalyze oxygen-related reactions, i.e., the oxygen reduction (ORR) and the oxygen evolution (OER) reaction, is still a challenge for the progress of energy conversion and storage devices such as metal–air batteries or unitized regenerative fuel cells. These devices represent a promising future for a clean and sustainable conversion and storage of energy. Regenerative fuel cells produce H2 and O2 when acting as water electrolysers and provide electricity when acting as fuel cells fed with H2. On the other hand, metal–air batteries are envisaged as next-generation batteries, with extraordinary high energy densities, being promising systems for portable, mobile or stationary applications. Oxygen electrodes can be very lightweight and thin because the active material, oxygen, does not need to be stored inside the cell. However, these electrodes are restricted by the poor reaction kinetics and low activity of many catalysts towards the oxygen evolution and reduction reactions.

In addition, it is a challenge to maintain the chemical and mechanical stability of the catalyst and supporting materials at oxidizing currents under the strong alkaline conditions commonly used, and under gas evolution. This Special Issue aims to cover the most recent advances and developments regarding bifunctional catalysts as oxygen electrodes.

Dr. Cinthia Alegre
Dr. David Sebastián
Prof. Dr. María Jesús Lázaro Elorri
Guest Editors

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Keywords

  • Metal–air batteries
  • Fuel cells
  • Oxygen reduction and/or evolution reactions
  • Hydrogen oxidation and/or evolution reactions
  • Advances in the design and synthesis of electrocatalysts
  • Supports for bifunctional electrocatalysts
  • Transition metal catalysts
  • Water splitting

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Published Papers (1 paper)

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Review

17 pages, 2320 KiB  
Review
Optimization Strategies of Preparation of Biomass-Derived Carbon Electrocatalyst for Boosting Oxygen Reduction Reaction: A Minireview
by Minhua Jiang, Xiaofang Yu, Haoqi Yang and Shuiliang Chen
Catalysts 2020, 10(12), 1472; https://doi.org/10.3390/catal10121472 - 16 Dec 2020
Cited by 29 | Viewed by 3957
Abstract
Oxygen reduction reaction (ORR) has attracted considerable attention for clean energy conversion technologies to reduce traditional fossil fuel consumption and greenhouse gas emissions. Although platinum (Pt) metal is currently used as an electrocatalyst to accelerate sluggish ORR kinetics, the scarce resource and high [...] Read more.
Oxygen reduction reaction (ORR) has attracted considerable attention for clean energy conversion technologies to reduce traditional fossil fuel consumption and greenhouse gas emissions. Although platinum (Pt) metal is currently used as an electrocatalyst to accelerate sluggish ORR kinetics, the scarce resource and high cost still restrict its further scale-up applications. In this regard, biomass-derived carbon electrocatalysts have been widely adopted for ORR electrocatalysis in recent years owing to their tunable physical/chemical properties and cost-effective precursors. In this minireview, recent advances of the optimization strategies in biomass-derived carbon electrocatalysts towards ORR have been summarized, mainly focusing on the optimization of pore structure and active site. Besides, some current challenges and future perspectives of biomass-derived carbon as high-performance electrocatalysts for ORR have been also discussed in detail. Hopefully, this minireview will afford a guideline for better design of biomass-derived carbon electrocatalysts for ORR-related applications. Full article
(This article belongs to the Special Issue Bifunctional Catalysts for Oxygen Electrodes)
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