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Advances in Electrocatalysts: Synthesis and Applications
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Advances in Electrocatalysts: Synthesis and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (10 August 2023) | Viewed by 5799

Special Issue Editor

Prof. Dr. Yuhang Wang

E-Mail Website
Guest Editor
Institute of Functional Nano & Soft Materials, Soochow University, Suzhou, China
Interests: electrocatalysis; water splitting; ammonia electrosynthesis; greenhouse gas valorization; design of electrocatalytic reactors; technoeconomic assessments for electrocatalytic processes

Special Issue Information

Dear Colleagues,

As climate change continues to challenge our lives, reducing carbon emissions to net-zero by the middle of this century became a global agreement for the sustainable development of human society. Unfortunately, present-day energy and industries heavily rely on fossil fuels and feedstocks, averaging 13 and 7 billion metric tons of carbon dioxide per year, which is about 60% of the world’s annual carbon emissions. Carbon-neutral energy and industries are therefore paramount for limiting the global temperature rise to well below 2 degrees Celcius.

Electrocatalysis features great potential in terms of carbon-neutral fuel and chemical syntheses and high-energy-density storage of intermittent renewables. The design of electrocatalysts typically plays a key role in determining reaction activity and product selectivity, two important parameters impacting the economic viability of the entire process.

As a guest editor of Materials, I am pleased to announce that a new Special Issue titled “Advances in Electrocatalysts: Synthesis and Applications” will be kicked off. The Special Issue welcomes original submissions in the form of reviews and articles. The topics of interest include but are not limited to:

  • Computational electrocatalysis
  • Electrocatalyst synthesis
  • Water electrolysis
  • CO2 electroreduction
  • NH3 electrosynthesis
  • Fuel cell catalysts
  • Catalysts for electrochemical organic synthesis
  • Design of electrocatalytic reactors

Prof. Dr. Yuhang Wang
Guest Editor

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • electrocatalysis
  • water electrolysis
  • CO2 reduction
  • NH3 electrosynthesis
  • fuel cell reactions
  • electrochemical organic synthesis

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

13 pages, 3909 KiB  
Article
Heterostructure of NiFe@NiCr-LDH for Active and Durable Oxygen Evolution Reactions in Alkaline Media
by Sanchuan Liu, Yujun Tang, Chengyu Guo, Yonggang Liu and Zhenghua Tang
Materials 2023, 16(8), 2968; https://doi.org/10.3390/ma16082968 - 8 Apr 2023
Cited by 5 | Viewed by 2816
Abstract
Developing cost-effective, efficient, and durable catalysts for oxygen evolution reactions (OER) is the key for promoting large-scale H2 production through electrochemical water splitting. Herein, we report a facile method for fabricating an NiFe@NiCr-LDH catalyst toward alkaline OER. The electronic microscopy technique revealed [...] Read more.
Developing cost-effective, efficient, and durable catalysts for oxygen evolution reactions (OER) is the key for promoting large-scale H2 production through electrochemical water splitting. Herein, we report a facile method for fabricating an NiFe@NiCr-LDH catalyst toward alkaline OER. The electronic microscopy technique revealed that it has a well-defined heterostructure at the interface between the NiFe and NiCr phases. In 1.0 M KOH, the as-prepared NiFe@NiCr-LDH catalyst shows excellent catalytic performance, evidenced by an overpotential of 266 mV at the current density of 10 mA cm−2 and a small Tafel slope of 63 mV dec−1; both are comparable with the RuO2 benchmark catalyst. It also exhibits robust durability in long-term operation, manifested by a 10% current decay in 20 h, which is superior to that of the RuO2 catalyst. Such excellent performance is attributed to the interfacial electron transfer that occurs at the interfaces of the heterostructure, and the Fe(III) species facilitate the formation of Ni(III) species as active sites in NiFe@NiCr-LDH. This study offers a feasible strategy for preparing a transition metal-based LDH catalyst for OER toward H2 production and other electrochemical energy technologies. Full article
(This article belongs to the Special Issue Advances in Electrocatalysts: Synthesis and Applications)
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Graphical abstract

17 pages, 3968 KiB  
Article
Electrocatalytic Properties of Ni(II) Schiff Base Complex Polymer Films
by Danuta Tomczyk, Wiktor Bukowski, Karol Bester and Michalina Kaczmarek
Materials 2022, 15(1), 191; https://doi.org/10.3390/ma15010191 - 28 Dec 2021
Cited by 4 | Viewed by 2103
Abstract
Platinum electrodes were modified with polymers of the (±)-trans-N,N′-bis(salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn)]) and (±)-trans-N,N′-bis(3,3′-tert-Bu-salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn(Bu))]) complexes to study their electrocatalytic and electroanalytical properties. Poly[Ni(salcn)] and poly[Ni(salcn(Bu))]) modified electrodes catalyze the oxidation of catechol, aspartic acid and NO [...] Read more.
Platinum electrodes were modified with polymers of the (±)-trans-N,N′-bis(salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn)]) and (±)-trans-N,N′-bis(3,3′-tert-Bu-salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn(Bu))]) complexes to study their electrocatalytic and electroanalytical properties. Poly[Ni(salcn)] and poly[Ni(salcn(Bu))]) modified electrodes catalyze the oxidation of catechol, aspartic acid and NO2−. In the case of poly[Ni(salcn)] modified electrodes, the electrocatalysis process depends on the electroactive surface coverage. The films with low electroactive surface coverage are only a barrier in the path of the reducer to the electrode surface. The films with more electroactive surface coverage ensure both electrocatalysis inside the film and oxidation of the reducer directly on the electrode surface. In the films with the most electroactive surface coverage, electrocatalysis occurs only at the polymer–solution interface. The analysis was based on cyclic voltammetry, EQCM (electrochemical quartz crystal microbalance) and rotating disc electrode method. Full article
(This article belongs to the Special Issue Advances in Electrocatalysts: Synthesis and Applications)
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