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Catalysts
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Advanced Electrocatalysts for Energy-Related Applications
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Advanced Electrocatalysts for Energy-Related Applications

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

Deadline for manuscript submissions: closed (20 April 2025) | Viewed by 2994

Special Issue Editor

Dr. Jiefang Zhu

E-Mail Website
Guest Editor
Angstrom Laboratory, Department of Chemistry, Uppsala University, Uppsala, Sweden
Interests: energy related materials; photocatalysis; electrocatalysis; material characterization; nanomaterials; synthesis; composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit your research to a Special Issue of Catalysts, entitled "Advanced Electrocatalysts for Energy-Related Applications".

The development of clean and sustainable energy sources is crucial for our planet's future. Electrocatalysis plays a central role in these advancements, driving key energy conversion and storage technologies such as fuel cells, water splitting, and metal–air batteries. However, the efficiency and durability of these technologies are often limited by the performance of electrocatalysts.

This Special Issue aims to showcase cutting-edge research on advanced electrocatalysts for energy-related applications. We welcome original research articles and reviews that focus on the design, synthesis, characterization, and performance of novel electrocatalysts for these critical energy conversion and storage technologies.

We encourage submissions that explore a broad range of topics related to advanced electrocatalysts, including, but not limited to, the following:

  • Novel material design and synthesis for electrocatalysts with high activity, selectivity, and durability;
  • Understanding the structure–function relationship in electrocatalysts to optimize their performance;
  • Computational modeling and simulations for the design and development of advanced electrocatalysts;
  • Operando techniques for elucidating reaction mechanisms and catalyst degradation pathways;
  • Electrocatalysts for specific energy conversion and storage technologies such as fuel cells, water splitting, metal–air batteries, CO2 reduction, and nitrogen reduction.

We invite researchers working on all aspects of advanced electrocatalysts for energy-related applications to submit their original and impactful work. We look forward to receiving your contributions and fostering a vibrant discussion on this critical research area.

Dr. Jiefang Zhu
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. 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 2200 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
  • energy conversion
  • energy storage
  • fuel cells
  • water splitting
  • metal–air batteries
  • CO2 reduction
  • nitrogen reduction
  • advanced materials
  • catalyst design

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

Published Papers (3 papers)

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Research

14 pages, 4727 KiB  
Article
Ternary PdIrNi Telluride Amorphous Mesoporous Nanocatalyst for Efficient Electro-Oxidation of Ethylene Glycol
by Liang Fu, Manli Wang, Lulu Hao, Jinhua Lei, Tong Liu, Zelin Chen and Changjiu Li
Catalysts 2025, 15(2), 143; https://doi.org/10.3390/catal15020143 - 4 Feb 2025
Viewed by 767
Abstract
The development of efficient electrocatalysts for the complete oxidation of ethylene glycol (EG) is crucial for enhancing the practicality of direct EG fuel cells (DEGFCs). However, significant challenges persist in developing highly active Pd-based catalytic electrodes. In this work, PdIrNi ternary telluride nanospheres [...] Read more.
The development of efficient electrocatalysts for the complete oxidation of ethylene glycol (EG) is crucial for enhancing the practicality of direct EG fuel cells (DEGFCs). However, significant challenges persist in developing highly active Pd-based catalytic electrodes. In this work, PdIrNi ternary telluride nanospheres (PdIrNiTe-MNSPs) with mesoporous morphology and an amorphous structure were successfully synthesized and applied in electrocatalytic EG oxidation reaction. Brunauer–Emmett–Teller analysis revealed typical mesoporous characteristics, with a surface area of 8.33 m2·g−1 and a total pore volume of 0.055 cm3·g−1, respectively. Transmission electron microscopy characterization showed that the outer layer of PdIrNiTe-MNSPs is entirely amorphous in structure. Electrochemical tests demonstrated that PdIrNiTe-MNSPs exhibit enhanced electrocatalytic specific activity (16.75 mA·cm−2) and mass activity (1372.22 mA·mg−1) for EG oxidation reaction (EGOR), achieving 3.17 and 2.09 times higher than commercial Pd/C, which can be attributed to its unique nanoarchitecture and optimized electron configuration. In situ spectroscopy revealed that with the incorporation of IrNi, PdIrNiTe-MNSPs facilitate C-C bond cleavage of EG, achieving a higher selectivity (≈93%) in oxidizing EG to C1 products, while PdTe-MNSPs demonstrated higher selectivity for glycolic acid in EGOR. Taken together, this work provides new insights into the application of Pd-based telluride nanomaterials in electrocatalysis for EGOR. Full article
(This article belongs to the Special Issue Advanced Electrocatalysts for Energy-Related Applications)
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9 pages, 3740 KiB  
Article
Ag Nanoparticle-Modified Metal Azole Framework for Enhancing the Electrocatalytic Reduction of Carbon Dioxide to Carbon Monoxide
by Xu Han, Haotian Wang, Yijie Zhang, Yuting Tan and Xiaomeng Lv
Catalysts 2025, 15(1), 32; https://doi.org/10.3390/catal15010032 - 2 Jan 2025
Viewed by 658
Abstract
The electrocatalytic reduction of carbon dioxide (CO2RR) into high-value-added products is considered to be a promising way to mitigate carbon emissions. However, it remains a challenge to design an efficient catalyst with an excellent performance. In this work, we synthesized a [...] Read more.
The electrocatalytic reduction of carbon dioxide (CO2RR) into high-value-added products is considered to be a promising way to mitigate carbon emissions. However, it remains a challenge to design an efficient catalyst with an excellent performance. In this work, we synthesized a metal azole framework (MAF) by changing 2-methylimidazole ligands into 5-mercapto-1-methyltetrazole (MMT) for use as organic linkers and mercaptan groups as anchoring sites for the Ag nanoparticles. The Ag NPs@ MAF-MMT material displayed a wide potential window from −0.6 to −1.2 V vs. RHE, with a maximum CO Faradaic efficiency (FECO) over 90.5%, and a current density of 18 mA cm−2 at −1.1 V vs. RHE for 11 h in an H-cell. This work provides a new option to immobilize Ag nanoparticles in MAFs material for the exploration of carbon dioxide reduction catalysts. Full article
(This article belongs to the Special Issue Advanced Electrocatalysts for Energy-Related Applications)
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13 pages, 2560 KiB  
Article
Effect of α-FeOOH in KOH Electrolytes on the Activity of NiO Electrodes in Alkaline Water Electrolysis for the Oxygen Evolution Reaction
by Tae-Hyun Kim, Jae-Hee Jeon, Ji-Eun Kim, Kyoung-Soo Kang, Jaekyung Yoon, Chu-Sik Park, Kwangjin Jung, Taeyang Han, Heonjoong Lee, Hyunku Joo and Hyunjoon Lee
Catalysts 2024, 14(12), 870; https://doi.org/10.3390/catal14120870 - 28 Nov 2024
Viewed by 1045
Abstract
Iron cation impurities reportedly enhance the oxygen evolution reaction (OER) activity of Ni-based catalysts, and the enhancement of OER activity by Fe cations has been extensively studied. Meanwhile, Fe salts, such as iron hydroxide and iron oxyhydroxide, in the electrolyte improve the OER [...] Read more.
Iron cation impurities reportedly enhance the oxygen evolution reaction (OER) activity of Ni-based catalysts, and the enhancement of OER activity by Fe cations has been extensively studied. Meanwhile, Fe salts, such as iron hydroxide and iron oxyhydroxide, in the electrolyte improve the OER performance, but the distinct roles of Fe cations and Fe salts have not been fully clarified or differentiated. In this study, NiO electrodes were synthesized, and their OER performance was evaluated in KOH electrolytes containing goethite (α-FeOOH). Unlike Fe cations, which enhance the performance via incorporation into the NiO structure, α-FeOOH boosts OER activity by adsorbing onto the electrode surface. Surface analysis revealed trace amounts of α-FeOOH on the NiO surface, indicating that physical contact alone enables α-FeOOH to adsorb onto NiO. Moreover, interactions between α-FeOOH and NiO were observed, suggesting their potential role in OER activity enhancement. These findings suggest that Fe salts in the electrolyte influence OER performance and should be considered in the development of OER electrodes. Full article
(This article belongs to the Special Issue Advanced Electrocatalysts for Energy-Related Applications)
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