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Nanomaterials
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Hydrogen Production and Evolution Based on Nanocatalysts
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Hydrogen Production and Evolution Based on Nanocatalysts

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: 30 May 2025 | Viewed by 1515

Special Issue Editors

Dr. Stefano Trocino

E-Mail Website
Guest Editor
Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano” (CNR-ITAE), Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy
Interests: photoelectrolysis
Special Issues, Collections and Topics in MDPI journals
Dr. Fausta Giacobello

E-Mail Website
Guest Editor
Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano” (CNR-ITAE), Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy
Interests: PEM electrolysis

Special Issue Information

Dear Colleagues,

The production of hydrogen as a clean, renewable, and efficient energy carrier is a critical area of research in the transition to sustainable energy systems. Nanocatalysts have emerged as promising materials to improve hydrogen production and evolution processes due to their unique physicochemical properties, including high surface area, tunable electronic structures, and enhanced reactivity at the nanoscale. This special issue aims to provide a platform for cutting-edge research on the design, synthesis, characterization, and application of nanocatalysts in hydrogen production and evolution reactions, including water splitting, thermochemical processes, and photoelectrocatalytic or electrocatalytic hydrogen generation. topics of interest include, but are not limited to, advancements in the development of novel nanomaterials such as metal oxides, sulfides, carbides, and hybrid materials, as well as their functionalization and optimization for enhanced catalytic performance. in addition, contributions that address challenges related to the durability, efficiency, and scalability of nanocatalysts in real-world applications are highly encouraged. this special issue seeks to gather original research articles, reviews, and perspectives that push the boundaries of current knowledge on nanocatalyst-based hydrogen production and offer insights into future directions for achieving higher hydrogen yields, lower energy input, and cost-effective solutions. By fostering collaboration among materials scientists, chemists, and engineers, this special issue will contribute to advancing the field and unlocking the potential of nanocatalysts in the global hydrogen economy.

Dr. Stefano Trocino
Dr. Fausta Giacobello
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. Nanomaterials 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 2900 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

  • nanocatalysts
  • nanomaterials
  • hydrogen
  • electrolysis
  • water splitting

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Published Papers (2 papers)

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11 pages, 3561 KiB  
Article
Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO3/Ag/TiO2 Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles
by Katarzyna Jakubow-Piotrowska, Bartlomiej Witkowski, Piotr Wrobel, Krzysztof Miecznikowski and Jan Augustynski
Nanomaterials 2024, 14(24), 2001; https://doi.org/10.3390/nano14242001 - 13 Dec 2024
Viewed by 367
Abstract
WO3/Ag/TiO2 composite photoelectrodes were formed via the high-temperature calcination of a WO3 film, followed by the sputtering of a very thin silver film and deposition of an overlayer of commercial TiO2 nanoparticles. These synthetic photoanodes were characterized in [...] Read more.
WO3/Ag/TiO2 composite photoelectrodes were formed via the high-temperature calcination of a WO3 film, followed by the sputtering of a very thin silver film and deposition of an overlayer of commercial TiO2 nanoparticles. These synthetic photoanodes were characterized in view of the oxidation of a model organic compound glucose combined with the generation of hydrogen at a platinum cathode. During prolonged photoelectrolysis under simulated solar light, these photoanodes demonstrated high and stable photocurrents of ca. 4 mA cm−2 due, on one hand, to the occurrence of the so-called photocurrent doubling and, on the other hand, to the plasmonic effect of Ag nanoparticles. The post-photoelectrolysis analyses of the electrolyte demonstrated the formation of high-value final glucose photo-reforming products, principally gluconic acid, erythrose and formic acid. Full article
(This article belongs to the Special Issue Hydrogen Production and Evolution Based on Nanocatalysts)
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17 pages, 5981 KiB  
Article
Free-Standing Carbon Nanofiber Films with Supported Cobalt Phosphide Nanoparticles as Cathodes for Hydrogen Evolution Reaction in a Microbial Electrolysis Cell
by Gerard Pérez-Pi, Jorge Luque-Rueda, Pau Bosch-Jimenez, Eduard Borràs Camps and Sandra Martínez-Crespiera
Nanomaterials 2024, 14(22), 1849; https://doi.org/10.3390/nano14221849 - 19 Nov 2024
Viewed by 950
Abstract
High-performance and cost-efficient electrocatalysts and electrodes are needed to improve the hydrogen evolution reaction (HER) for the hydrogen (H2) generation in electrolysers, including microbial electrolysis cells (MECs). In this study, free-standing carbon nanofiber (CNF) films with supported cobalt phosphide nanoparticles have [...] Read more.
High-performance and cost-efficient electrocatalysts and electrodes are needed to improve the hydrogen evolution reaction (HER) for the hydrogen (H2) generation in electrolysers, including microbial electrolysis cells (MECs). In this study, free-standing carbon nanofiber (CNF) films with supported cobalt phosphide nanoparticles have been prepared by means of an up-scalable electrospinning process followed by a thermal treatment under controlled conditions. The produced cobalt phosphide-supported CNF films show to be nanoporous (pore volume up to 0.33 cm3 g−1) with a high surface area (up to 502 m2 g−1) and with a suitable catalyst mass loading (up to 0.49 mg cm−2). Values of overpotential less than 140 mV at 10 mA cm−2 have been reached for the HER in alkaline media (1 M KOH), which demonstrates a high activity. The high electrical conductivity together with the mechanical stability of the free-standing CNF films allowed their direct use as cathodes in a MEC reactor, resulting in an exceptionally low voltage operation (0.75 V) with a current density demand of 5.4 A m−2. This enabled the production of H2 with an energy consumption below 30 kWh kg−1 H2, which is highly efficient. Full article
(This article belongs to the Special Issue Hydrogen Production and Evolution Based on Nanocatalysts)
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