Special Issue "Heterojunction-Based Photocatalysts and Photoelectrodes for Water Splitting and CO2 Reduction: From Fundamentals to Applications"
Deadline for manuscript submissions: closed (31 May 2020).
Interests: photocatalysis; photoelectrochemistry; hydrogen generation; self-organizing electrochemistry; electrochemical anodization; TiO2 nanotubes; one-dimensional nanostructures; metal oxide semiconductors; solid state dewetting; metal nanoparticles
Interests: Materials science, mesoporous materials, photocatalysis, water splitting, proton conduction
Department of Chemistry University College London, UK
Interests: catalysis; surface science; metal oxides; photo-catalysis; electron transfer; reaction mechanism
Photocatalytic and photoelectrochemical processes have been intensively studied for almost 50 years, and the scientific interest in these areas is still growing. The main reason is the great potential to enable, ideally under solar illumination, a variety of reactions of environmental relevance in the current energy scenario, such as the generation of H2 by water splitting and the reduction of greenhouse gas CO2 to hydrocarbons. Key elements towards high reaction yields are efficient separation and swift transfer of photo-generated charge carriers to reactants. For this, numerous materials have been explored, often in the form of nanostructured semiconductor and metal composites.
The aim of this Special Issue is to highlight current research on heterojunction-based photocatalysts and photoelectrodes for H2 generation and CO2 reduction, with focus on issues that still drastically hamper their performance. In this context, significant advancement lies in further understanding of aspects related to surface structural requirements and their relationship to bulk properties. The electronic properties of, e.g., semiconductor/semiconductor or metal/semiconductor interfaces, the role of metal and metal oxides clusters in charge transfer or, at a more fundamental level, the engineering of orbital overlap between reactants and the semiconductor surfaces, and the associated charge lifetime and charge transfer reaction kinetics are deemed essential to improve photocatalytic and photoelectrochemical efficiencies.
In addition, the development of advanced nanostructuring tools that enable precise morphological control over heterojunction formation is also of crucial importance to maximize light harvesting, for instance by the design of photonic band gap and plasmonic materials, and metamaterials. Additionally, site-specific cocatalyst placement at the semiconductor surface and surface-structure electronic effects on charge transfer (such as changes in work function and electric field) are important parameters requiring further attention.
These are some of the key concepts and topics within the scope of this Special Issue, which is open to original research articles, and also to reviews that target a critical viewpoint in the field.
Dr. Marco Altomare
Dr. Hicham Idriss
Dr. Roland Marschall
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 papers will be 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 1800 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.
- water splitting
- H2 generation
- CO2 reduction
- hydrocarbon synthesis
- metal cluster
- metal oxide
- work function
- electric field effect
- plasmonic material
- photonic band gap
- charge transfer
- transient absorption spectroscopy