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Inorganics
Special Issues
Nanostructured Platinum-Containing Electrocatalysts for Hydrogen Energy
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Nanostructured Platinum-Containing Electrocatalysts for Hydrogen Energy

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Solid-State Chemistry".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 2854

Special Issue Editors

Dr. Anastasia Alekseenko

E-Mail Website
Guest Editor
Chemistry Faculty, Southern Federal University, 344090 Rostov-on-Don, Russia
Interests: synthesis, structure, and properties of nanostructured electrocatalysts for low-temperature fuel cells and electrolyzers
Special Issues, Collections and Topics in MDPI journals
Dr. Sergey Belenov

E-Mail Website
Guest Editor
Chemistry Faculty, Southern Federal University, 344090 Rostov-on-Don, Russia
Interests: synthesis, structure, and properties of nanostructured electrocatalysts for low-temperature fuel cells and electrolyzers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Low-temperature fuel cells with a proton-exchange membrane are an important part of the rapidly developing field of hydrogen energy. Electrocatalysts are key components of such electrochemical devices. The best catalysts for polymer membrane fuel cells are platinum and its alloys when used on an electron-conducting carbon support. The use of alloying components of various natures, in combination with the formation of a wide range of complex structural types of Pt–M nanoparticles (solid solutions, intermetallic compounds, core–shell, gradient NPs, nano-frames, etc.), make it possible to significantly increase the activity, selectivity, and stability of catalysts in electrochemical reactions and ). In recent years, studies devoted to the creation of PMG-free catalysts with a proton-exchange membrane for use in the cathode and anode of fuel cells have become increasingly important. This Special Issue, “Nanostructured Platinum-Containing Electrocatalysts for Hydrogen Energy”, will provide information on new advanced Pt–M and PMG-free catalysts that are promising for use in PEMFC. We welcome papers devoted to the development of new methods of synthesis and the search for new architectural types of nanoparticles with high catalytic activity, the study of the mechanism of reactions occurring on such catalysts, the analysis of the mechanisms of catalyst degradation, and the search for ways to increase their durability. We encourage the submission of theoretical and experimental papers, as well as reviews covering all topics related to Pt–M catalysts and their applications in a variety of processes and devices. 

Dr. Anastasia Alekseenko
Dr. Sergey Belenov
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. Inorganics 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

  • platinum catalysts
  • platinum electrocatalysts
  • bimetallic catalysts
  • platinum alloys
  • carbon dioxide conversion
  • fuel cells
  • hydrogen production
  • Pt-M nanoparticles
  • PMG-free electrocatalysts

Published Papers (2 papers)

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Research

12 pages, 4259 KiB  
Article
In Situ Preparation of 2D Co-B Nanosheets@1D TiO2 Nanofibers as a Catalyst for Hydrogen Production from Sodium Borohydride
by Ibrahim M. Maafa, Nasser Zouli, Ahmed Abutaleb, Ayman Yousef, Isam Y. Qudsieh, Saleh M. Matar, Abdel Samed M. Adam and M. M. El-Halwany
Inorganics 2023, 11(8), 342; https://doi.org/10.3390/inorganics11080342 - 18 Aug 2023
Viewed by 1192
Abstract
In this study, 2D Co-B nanosheet-decorated 1D TiO2 nanofibers (2D Co-B NS-decorated 1D TiO2 NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance in H2 generation from sodium borohydride (SBH). [...] Read more.
In this study, 2D Co-B nanosheet-decorated 1D TiO2 nanofibers (2D Co-B NS-decorated 1D TiO2 NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance in H2 generation from sodium borohydride (SBH). When compared to naked Co-B nanoparticles, the catalytic activity of the 2D Co-B NS-decorated 1D TiO2 NFs catalyst for the hydrolysis of SBH is significantly enhanced, as demonstrated by the high hydrogen generation rate (HGR) of 6020 mL min−1 g−1 at 25 °C. The activation energy of hydrolysis was measured to be 30.87 kJ mol−1, which agreed with the reported values. The catalyst also showed good stability. Moreover, the effects of SBH, catalyst concentration, and temperature on the catalytic performance of 2D Co-B NS-decorated 1D TiO2 NFs were studied to gain a comprehensive understanding of the dehydrogenation mechanism of SBH. Based on these findings, we conclude that 2D Co-B NS-decorated 1D TiO2 NFs are effective catalytic materials for the dehydrogenation of SBH. Full article
(This article belongs to the Special Issue Nanostructured Platinum-Containing Electrocatalysts for Hydrogen Energy)
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13 pages, 3160 KiB  
Article
Effect of AST Atmosphere on Pt/C Electrocatalyst Degradation
by Kirill Paperzh, Elizaveta Moguchikh, Ilya Pankov, Sergey Belenov and Anastasia Alekseenko
Inorganics 2023, 11(6), 237; https://doi.org/10.3390/inorganics11060237 - 28 May 2023
Cited by 2 | Viewed by 1400
Abstract
The targeted development of novel stress testing protocols as well as the production of highly active and stable catalysts require abandoning a trial-and-error approach and transitioning to identifying the principal degradation mechanisms of electrocatalysts for PEMFCs under various conditions. Methodological aspects of research [...] Read more.
The targeted development of novel stress testing protocols as well as the production of highly active and stable catalysts require abandoning a trial-and-error approach and transitioning to identifying the principal degradation mechanisms of electrocatalysts for PEMFCs under various conditions. Methodological aspects of research related to both qualitative and quantitative assessment of the materials’ robustness against degradation and its mechanisms become the key issues. In this study, accelerated stress testing has been conducted in Ar and O2 to identify the influence of the atmosphere on the degradation and durability mechanisms of the Pt/C catalysts. Initial and final parameters after the AST have been studied in detail by transmission electron microscopy and voltammetry using the rotating disk electrode technique. The Ostwald ripening (redeposition) of platinum particles has been established to be the predominant degradation mechanism during the testing in an O2 atmosphere, this being the agglomeration of nanoparticles during the testing in Ar. An ultra-small size and a narrow size distribution of platinum nanoparticles, as well as their uniform spatial distribution over the surface of the carbon support, have been shown to allow both ORR activity to be increased and durability to be enhanced. Full article
(This article belongs to the Special Issue Nanostructured Platinum-Containing Electrocatalysts for Hydrogen Energy)
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