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New Sights in Nanomaterials for Photoelectrochemistry

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Nanochemistry".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 768

Special Issue Editor


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Guest Editor
Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, China
Interests: photoelectrochemical water splitting; single atom catalysis; photodynamic therapy; photothermal therapy; quantum dots; aqueous zinc batteries

Special Issue Information

Dear Colleagues,

Energy and environmental crises have become increasingly critical, and there is an urgent demand for green chemistry and transformation methods. As effective electron transfer methods, unique photoelectric synergistic catalysis methods have attracted widespread attention from scientists. Numerous research groups have carried out work in the field of photoelectrochemical synthesis, catalysis, transformations, and conversions. Photoelectrochemical catalysis consists of synergistic photocatalysts and electrocatalysts, using photons and electrons to initiate redox reactions instead of chemical oxidants or reducing agents, thus offering a more eco-friendly strategy for various reactions. In addition, photoelectrochemical cells, sensors, and devices are relevant to light absorption, charge separation/recombination and migration, and (electro)catalytic redox reactions, playing paramount roles in energy harvesting, conversion, detection, and characterization applications.

Prof. Dr. Yibo Yan
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. Molecules 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 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

  • photoelectrochemical catalysis
  • photoelectrochemical cells
  • photoelectrochemical sensors
  • photoelectrochemical characterizations
  • photoelectrochemical conversion
  • photoelectrochemical transformations
  • optoelectronic devices
  • photoelectrochemical CO2 reduction

Published Papers (1 paper)

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Research

13 pages, 3460 KiB  
Article
Quantum Dots Mediated Heterojunction Coupling MoSe2 Photoanode for Photoelectrochemical Water Splitting
by Lin Zhang, Jiana Sun, Mengmeng Zhao, Yuxuan Wei, Taigang Luo, Zhengping Zhao and Yibo Yan
Molecules 2024, 29(5), 1070; https://doi.org/10.3390/molecules29051070 - 29 Feb 2024
Viewed by 616
Abstract
Graphene quantum dots (GQDs) possess the photosensitive absorption for photoelectrochemical hydrogen evolution owing to special band structures, whereas they usually confront with photo-corrosion or undesired charge recombination during photoelectrochemical reactions. Hence, we establish the heterojunction between GQDs and MoSe2 sheets via a [...] Read more.
Graphene quantum dots (GQDs) possess the photosensitive absorption for photoelectrochemical hydrogen evolution owing to special band structures, whereas they usually confront with photo-corrosion or undesired charge recombination during photoelectrochemical reactions. Hence, we establish the heterojunction between GQDs and MoSe2 sheets via a hydrothermal process for improved stability and performance. Photoanodic water splitting with hydrogen evolution boosted by the heteroatom doped N,S-GQDs/MoSe2 heterojunction has been attained due to the abundant active sites, promoted charge separation and transfer kinetics with reduced energy barriers. Diphasic 1T and 2H MoSe2 sheet-hybridized quantum dots contribute to the Schottky heterojunction, which can play a key role in expedited carrier transport to inhibit accumulative photo-corrosion and increase photocurrent. Heteroatom dopants lead to favored energy band matching, bandgap narrowing, stronger light absorption and high photocurrent density. The external quantum efficiency of the doped heterojunction has been elevated twofold over that of the non-doped pristine heterojunction. Modification of the graphene quantum dots and MoSe2 heterojunction demonstrate a viable and adaptable platform toward photoelectrochemical hydrogen evolution processes. Full article
(This article belongs to the Special Issue New Sights in Nanomaterials for Photoelectrochemistry)
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