Non-precious Metal Electrocatalysts: Synthesis, Characterization and Application, 2nd Edition

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

Deadline for manuscript submissions: closed (15 February 2024) | Viewed by 1996

Special Issue Editors


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Guest Editor
Department of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Plac Lodzki 4, 10-957 Olsztyn, Poland
Interests: catalysis; electrochemistry; SEM/EDX analysis; hydrogen evolution reaction
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Guest Editor
College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China
Interests: electrocatalysis; energy conversion; water-splitting; photo-functional materials; super-wetting

Special Issue Information

Dear Colleagues,

After the first successful Special Issue focused on the synthesis, characterization and application of non-precious metal electrocatalysts, we propose the second edition, titled “Non-precious Metal Electrocatalysts: Synthesis, Characterization and Application, 2nd Edition”.

Electrocatalysis plays an important role in many chemical processes and targets improving efficiency. However, in many cases, in order to accelerate the electrochemical process, it is necessary to use catalysts containing noble metals such as platinum, which raises the system’s capital cost and the price of its products. Thus, many works are dedicated to the development of less expensive and more available catalysts by means of metallic and nonmetallic materials with high electrocatalytic activity. This Special Issue collects original research papers, reviews, and commentaries focused on the challenges in developing sufficient and cheap electrocatalysts. Submissions in the following areas are especially (but not exclusively) welcome:

  • The mechanisms and kinetics of electrochemical reactions;
  • Electrochemical degradation of pollutants;
  • Electrochemical reactions;
  • Electrosynthesis;
  • Electrode reactions.

Dr. Tomasz Mikołajczyk
Prof. Dr. Shanhu Liu
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. 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

  • reaction kinetics
  • electrosynthesis
  • electrode reactions
  • electrochemical degradation
  • electrocatalysis

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Published Papers (2 papers)

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Research

20 pages, 15046 KiB  
Article
Alkaline Water Splitting by Ni-Fe Nanoparticles Deposited on Carbon Fibre and Nickel-Coated Carbon Fibre Substrates
by Mateusz Kuczyński, Tomasz Mikołajczyk and Bogusław Pierożyński
Catalysts 2023, 13(12), 1468; https://doi.org/10.3390/catal13121468 - 24 Nov 2023
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Abstract
This study presents the results of electrochemical investigations on Hydrogen and Oxygen Evolution Reactions (HER and OER), conducted on commercially available carbon fibres and nickel-coated carbon fibres modified using nanoscale NiFe alloy particles in 0.1 M of NaOH solution. The obtained results demonstrated [...] Read more.
This study presents the results of electrochemical investigations on Hydrogen and Oxygen Evolution Reactions (HER and OER), conducted on commercially available carbon fibres and nickel-coated carbon fibres modified using nanoscale NiFe alloy particles in 0.1 M of NaOH solution. The obtained results demonstrated enhanced catalytic activity of the NiFe-modified fibre materials, with approximately 14,700% and 25% improvement in the OER and HER activity (respectively), as compared to unmodified electrodes. The catalytic properties were evaluated by means of electrochemical impedance spectroscopy, Tafel polarisation and cyclic, and linear voltammetry techniques. The deposited particles’ distribution and quantities present on the investigated materials were analysed using Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray spectroscopy (EDX) methods. These findings provided valuable insights into the electrochemical, catalytic performance of NiFe-modified carbon fibre/nickel-coated carbon fibre materials, simultaneously highlighting their potential application as catalyst materials for electrodes in industrial-scale water electrolysers. Full article
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13 pages, 2444 KiB  
Communication
A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis
by Kian Shamskhou, Houssein Awada, Farzaneh Yari, Abdalaziz Aljabour and Wolfgang Schöfberger
Catalysts 2023, 13(10), 1348; https://doi.org/10.3390/catal13101348 - 06 Oct 2023
Viewed by 841
Abstract
The hydrogen evolution reaction (HER) has emerged as a focal point in the realm of sustainable energy generation, offering the potential to produce clean hydrogen gas (H2) devoid of pollutants. The pursuit of stable HER electrocatalysts that can reduce our reliance [...] Read more.
The hydrogen evolution reaction (HER) has emerged as a focal point in the realm of sustainable energy generation, offering the potential to produce clean hydrogen gas (H2) devoid of pollutants. The pursuit of stable HER electrocatalysts that can reduce our reliance on precious platinum, while still maintaining a high level of catalytic efficiency, presents a significant and ongoing challenge. In this study, we introduce the utilization of a binuclear nickel (II) Schiff base complex known as [Ni]2[L]2 2 for the purpose of HER electrocatalysis. The rational design of this electrocatalyst has yielded optimal HER performance, wherein the strategic placement of electronegative heteroatoms in proximity to the metal centers serves to enhance proton affinity. Consequently, this catalyst manifests outstanding HER activity, characterized by a nearly 100% faradaic efficiency (FE) at an overpotential potential of −0.4 V versus the reverse hydrogen electrode (RHE), sustained catalytic activity over an extended 80 h electrolysis period, and a commendable turnover number (TON) of 0.0006 s−1. Full article
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