Special Issue "Catalysts for Oxygen Reduction Reaction"

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

Deadline for manuscript submissions: 30 June 2018

Special Issue Editors

Guest Editor
Prof. Dr. Zhenghua Tang

School of Enviroment and Technology, South China University of Technology, Guangzhou 510006, China
Website | E-Mail
Interests: my specialization lies on Pt based or other nobel metal based composite materials for oxygen reduction reaction, oxygen evolution reduction as well as PEMFC and metal air-battery application and beyond
Guest Editor
Prof. Dr. Ligui Li

School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
Website | E-Mail
Interests: nanomaterials for efficient electrocatalysis in low temperature fuel cells, metal-air batteries, overall water splitting systems etc.; high-performance electrode materials for Li-S batteries; assembling of conjugated polymer and their applications in polymer/perovskite solar cells
Guest Editor
Prof. Dr. Shouzhong Zou

Department of Chemistry, American University, Washington, DC 20016, USA
Website | E-Mail
Interests: developing catalysts for low temperature fuel cells; CO2 reduction and gas sensing; advancing spectroscopic and microscopic techniques for the characterization of surfaces and interfaces; electrocatalysis, surface vibrational spectroscopy, metal and carbon nanomaterials, proton exchange membrane fuel cells

Special Issue Information

Dear Colleagues,

The ever-increasing demand for energy and the negative environmental impacts imposed by using fossil fuels have called for efficient energy conversion and storage technologies. Polymer electrolyte membrane fuel cells (PEMFCs) and lithium air (oxygen) batteries are among the most promising technologies to answer this call. Oxygen reduction reaction (ORR) is a cathode reaction in PEMFCs and lithium-oxygen batteries. The sluggish ORR requires the development of highly-efficient ORR catalysts before these technologies are viable and can be widely deployed in the market. Consequently, tremendous research efforts have been made in ORR catalysts and many highly-active and stable catalysts have emerged. This Special Issue aims to cover recent progress and trends in synthesizing, characterizing and evaluating advanced electrocatalysts for ORR, as well as a theoretical understanding of ORR that provides rational design guides for high performance ORR catalysts.

Prof. Dr. Zhenghua Tang
Prof. Dr. Ligui Li
Prof. Dr. Shouzhong Zou
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

  • Oxygen reduction reaction (ORR)
  • Electrocatalysts
  • Polymer Electrolyte Membrane Fuel Cells (PEMFCs)
  • Lithium air batteries
  • Lithium oxygen batteries
  • Pt-based alloys
  • Platinum
  • Non-precious metal
  • Oxygen evolution reaction (OER)
  • density functional theory

Published Papers (3 papers)

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Research

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Open AccessArticle Cost-Effective and Facile Preparation of Fe2O3 Nanoparticles Decorated N-Doped Mesoporous Carbon Materials: Transforming Mulberry Leaf into a Highly Active Electrocatalyst for Oxygen Reduction Reactions
by , , , , , , and
Catalysts 2018, 8(3), 101; doi:10.3390/catal8030101
Received: 6 January 2018 / Revised: 8 February 2018 / Accepted: 9 February 2018 / Published: 28 February 2018
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Abstract
Herein, a promising method to prepare efficient N-doped porous carbon-supported Fe2O3 nanoparticles (Fe2O3/N-PCs) ORR electrocatalysts is presented. The porous carbon was derived from a biomass i.e., mulberry leaf through a cost-effective approach. The existence of diverse
[...] Read more.
Herein, a promising method to prepare efficient N-doped porous carbon-supported Fe2O3 nanoparticles (Fe2O3/N-PCs) ORR electrocatalysts is presented. The porous carbon was derived from a biomass i.e., mulberry leaf through a cost-effective approach. The existence of diverse compounds containing carbon, oxygen, nitrogen and sulfur in mulberry leaf benefit the formation and uniform dispersion of Fe2O3 nanoparticles (NPs) in the porous carbon. In evaluating the effects of the carbon support on the Fe2O3 NPs towards the ORR, we found that the sample of Fe2O3/N-PCs-850 (Fe2O3/N-PCs obtained at 850 °C) with high surface area of 313.8 m2·g−1 exhibits remarkably superior ORR activity than that of materials acquired under other temperatures. To be specific, the onset potential and reduction peak potential of Fe2O3/N-PCs-850 towards ORR are 0.936 V and 0.776 V (vs. RHE), respectively. The calculated number of electron transfer n for the ORR is 3.9, demonstrating a near four-electron-transfer process. Furthermore, it demonstrates excellent longtime stability and resistance to methanol deactivation compared with Pt/C catalyst. This study provides a novel design of highly active ORR electrocatalysts from low-cost abundant plant products. Full article
(This article belongs to the Special Issue Catalysts for Oxygen Reduction Reaction)
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Open AccessArticle Synthesis of Three-Dimensionally Ordered Macroporous NiCe Catalysts for Oxidative Dehydrogenation of Propane to Propene
by , , , , , , and
Catalysts 2018, 8(1), 19; doi:10.3390/catal8010019
Received: 18 December 2017 / Revised: 8 January 2018 / Accepted: 8 January 2018 / Published: 10 January 2018
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Abstract
Three-dimensionally ordered macroporous (3DOM) NiCe catalysts with different Ni/Ce molar ratio were fabricated using the colloidal crystal templating method. The physic-chemical properties of the samples were characterized by various techniques, including N2 adsorption–desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, and
[...] Read more.
Three-dimensionally ordered macroporous (3DOM) NiCe catalysts with different Ni/Ce molar ratio were fabricated using the colloidal crystal templating method. The physic-chemical properties of the samples were characterized by various techniques, including N2 adsorption–desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, and H2-temperature-programmed reduction (TPR) characterizations. The results revealed that the 3DOM NiCe samples preserved the three-dimensionally ordered macroporous channels with interlinked micro- or mesoporous structure and highly dispersed nickel oxide species in the framework upon different amount of nickel incorporation. In the evaluation of the oxidative dehydrogenation (ODH) of propane, the 3DOM NiCe catalysts exhibited higher selectivity and yield to propene than the amorphous NiCe catalyst. An optimum yield of propene of 11.9% with the 30.3% propane conversion at 375 °C was obtained over the 3DOM 2NiCe catalyst. Combining XRD, TPR, and Raman analysis, it could be found that the nickel incorporation in CeO2 lattice produced a high concentration of oxygen vacancies that were the active sites for the oxidative dehydrogenation of propane. Besides this, the 3DOM structure promoted the rapid diffusion of the reactants and products—favorable for the generation of propene in the ODH of propane. Full article
(This article belongs to the Special Issue Catalysts for Oxygen Reduction Reaction)
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Review

Jump to: Research

Open AccessReview Oxygen Reduction Reaction Catalyzed by Noble Metal Clusters
by , and
Catalysts 2018, 8(2), 65; doi:10.3390/catal8020065
Received: 2 January 2018 / Revised: 1 February 2018 / Accepted: 2 February 2018 / Published: 7 February 2018
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Abstract
Highly-efficient catalysts for the oxygen reduction reaction (ORR) have been extensively investigated for the development of proton exchange membrane fuel cells (PEMFCs). The state-of-the-art Pt/C catalysts suffer from high price, limited accessibility of Pt, sluggish reaction kinetics, as well as undesirable long-term durability.
[...] Read more.
Highly-efficient catalysts for the oxygen reduction reaction (ORR) have been extensively investigated for the development of proton exchange membrane fuel cells (PEMFCs). The state-of-the-art Pt/C catalysts suffer from high price, limited accessibility of Pt, sluggish reaction kinetics, as well as undesirable long-term durability. Engineering ultra-small noble metal clusters with high surface-to-volume ratios and robust stabilities for ORR represents a new avenue. After a simple introduction regarding the significance of ORR and the recent development of noble metal clusters, the general ORR mechanism in both acidic and basic media is firstly discussed. Subsequently, we will summarize the recent efforts employing Pt, Au, Ag, Pd and Ru clusters, as well as the alloyed bi-metallic clusters for acquiring highly efficient catalysts to enhance both the activity and stability of ORR. Molecular noble metal clusters with definitive composition to reveal the relevant ORR mechanism will be particularly highlighted. Finally, the current challenges, the future outlook, as well as the perspectives in this booming field will be proposed, featuring the great opportunities and potentials to engineering noble metal clusters as highly-efficient and durable cathodic catalysts for fuel cell applications. Full article
(This article belongs to the Special Issue Catalysts for Oxygen Reduction Reaction)
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