Transition Metals/Oxides/Oxyanions Based Catalysts for Photo-/Electro-Chemical Application

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

Deadline for manuscript submissions: closed (20 November 2021) | Viewed by 9879

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Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan
Interests: nanocomposite materials; non-precious metal catalysts; bifunctional electrocatalysts; electrochemistry; electrochemical sensors and biosensors; electrocatalysis; energy conversion application; supercapacitor; Li-ion battery and Li-O2 battery; water splitting; photocatalysis; corrosion
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Department of Chemical Engineering, Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei 243, Taiwan
Interests: electrochemical engineering; electrodeposition; battery technology; Li-ion battery

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Department of Chemical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
Interests: electroanalytical chemistry; bioelectrochemistry; energy; nanotechnology; modified electrodes; electrochemical sensors
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Chemistry Department, Science College, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
Interests: electrocatalysis; energy; photoelectrochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent decades, transition metal oxyanions, especially vanadate-, molybdate-, and tungsdate-based catalyst materials have been widely studied in many research fields, such as catalysis, photocatalysis, electrocatalysis, optical fibers, lasers, energy conversion and storage, water splitting, lithium-ion batteries, supercapacitors, photoluminescence, humidity sensors, etc. Several nanostructures and morphologies of these materials have also been reported including flower-like, nest-like, nanowires, nanoplates, thin films, nanorods, dendrites, doughnut-shaped microstructures, nanopowders, etc. These materials have usually been synthesized through simple and cost-effective methods such as hydro/solvothermal methods, co-precipitation methods, sonochemical methods, combustion methods, sol–gel methods, and solid-state methods. Due to their attractive unique properties, including physicochemical properties, stable crystal structure, high photostability, good catalytic convertor ability, corrosion inhibitor redox behavior, and high electronic conductivity, transition metal oxyanions have been extensively investigated in photo-/electrochemical applications.

This Special Issue aims to cover all types of metal vanadate-, molybdate-, and tungstate-based catalyst materials used in photo-/electrochemical applications. This also includes the synthesis, materials’ characterization, property evaluation, composite material synthesis, biomolecule detection, environmental/pharmaceutical pollutant detection and degradation through photo/electrocatalytic oxidations and reductions, photodegradation, electrochemical sensing, energy storage, and conversion application. The issue also concerns experimental and theoretical evaluation to understand the photo/electrocatalytic reaction kinetics of potential catalysts. Original research papers, short communications, and review articles are invited for submission.

Dr. Chelladurai Karuppiah
Prof. Dr. Chun-Chen Yang
Prof. Dr. Shen-Ming Chen
Prof. Dr. Prabhakarn Arunachalam
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. 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 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

  • Electrocatalysis
  • Photocatalysis
  • Electrochemical sensor
  • Photodegradation
  • Detection and degradation
  • Water splitting
  • Energy storage and conversion materials
  • Lithium-ion battery
  • Sodium-ion battery
  • Supercapacitor
  • Hydrogen evolution reaction
  • Oxygen evolution reaction
  • Oxygen reduction reaction
  • Environmental pollutants
  • Pharmaceutical drugs

Published Papers (3 papers)

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Research

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16 pages, 7805 KiB  
Article
Manganese Molybdenum Oxide Micro Rods Adorned Porous Carbon Hybrid Electrocatalyst for Electrochemical Determination of Furazolidone in Environmental Fluids
by Sivakumar Musuvadhi Babulal, Tse-Wei Chen, Shen-Ming Chen, Wedad A. Al-Onazi and Amal M. Al-Mohaimeed
Catalysts 2021, 11(11), 1397; https://doi.org/10.3390/catal11111397 - 18 Nov 2021
Cited by 4 | Viewed by 2121
Abstract
The frequent occurrence of furazolidone (FZD) in environmental fluids reveals the ongoing increase in use and raises concerns about the need of monitoring it. To investigate the electrochemical behavior of FZD, a novel sensor of manganese molybdenum oxide (MMO) micro rods adorned three-dimensional [...] Read more.
The frequent occurrence of furazolidone (FZD) in environmental fluids reveals the ongoing increase in use and raises concerns about the need of monitoring it. To investigate the electrochemical behavior of FZD, a novel sensor of manganese molybdenum oxide (MMO) micro rods adorned three-dimensional porous carbon (PC) electrocatalyst was constructed. The crystalline structure and surface morphology of the MMO/PC composite was characterized by XRD, Raman, FESEM, and HR-TEM. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and amperometric(i-t) methods were used to assess the electrocatalytic activity of modified electrodes. In the presence of FZD, the as-fabricated MMO/PC modified glassy carbon electrode (GCE) performed better at lower potentials with a greater peak current than other modified GCE. These results emanate from the synergistic effect of the MMO/PC suspension on the GCE. The electrochemical behavior of the amperometric(i-t) technique was used to determine FZD. Amperometric(i-t) detection yielded linear dynamic ranges of 150 nM to 41.05 µM and 41.05 to 471.05 µM with detection limits of 30 nM. The MMO/PC hybrid sensor was also effectively used to detect FZD in environmental fluids, yielding ultra-trace level detection. Full article
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12 pages, 4032 KiB  
Article
Incorporation of Bi2O3 Residuals with Metallic Bi as High Performance Electrocatalyst toward Hydrogen Evolution Reaction
by Rahmad Syah, Awais Ahmad, Afshin Davarpanah, Marischa Elveny, Dadan Ramdan, Munirah D. Albaqami and Mohamed Ouladsmane
Catalysts 2021, 11(9), 1099; https://doi.org/10.3390/catal11091099 - 12 Sep 2021
Cited by 20 | Viewed by 3046
Abstract
Nanostructured Bismuth-based materials are promising electrodes for highly efficient electrochemical reduction processes such as hydrogen evolution reaction (HER). In this work, a novel sort of nanocomposite made up of partially reduced Bi2O3 into metallic Bi anchored on a 3D network [...] Read more.
Nanostructured Bismuth-based materials are promising electrodes for highly efficient electrochemical reduction processes such as hydrogen evolution reaction (HER). In this work, a novel sort of nanocomposite made up of partially reduced Bi2O3 into metallic Bi anchored on a 3D network of Ni-foam as a high-performance catalyst for electrochemical hydrogen reduction. The application of the hybrid material for HER is shown. The high catalytic activity of the fabricated electrocatalyst arises from the co-operative effect of Bi/Bi2O3 and Ni-foam which provides a highly effective surface area combined with the highly porous structure of Ni-foam for efficient charge and mass transport. The advantages of the electrode for the electrochemical reduction processes such as high current density, low overpotential, and high stability of the electrode are revealed. An overall comparison of our as-prepared electrocatalyst with recently reported works on related work is done. Full article
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Review

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25 pages, 4026 KiB  
Review
Smart Designs of Mo Based Electrocatalysts for Hydrogen Evolution Reaction
by Xingyuan Gao, Huilin Deng, Qiuping Dai, Quanlong Zeng, Shuxian Qiu and Xihong Lu
Catalysts 2022, 12(1), 2; https://doi.org/10.3390/catal12010002 - 21 Dec 2021
Cited by 9 | Viewed by 3824
Abstract
As a sustainable and clean energy source, hydrogen can be generated by electrolytic water splitting (i.e., a hydrogen evolution reaction, HER). Compared with conventional noble metal catalysts (e.g., Pt), Mo based materials have been deemed as a promising alternative, with a relatively low [...] Read more.
As a sustainable and clean energy source, hydrogen can be generated by electrolytic water splitting (i.e., a hydrogen evolution reaction, HER). Compared with conventional noble metal catalysts (e.g., Pt), Mo based materials have been deemed as a promising alternative, with a relatively low cost and comparable catalytic performances. In this review, we demonstrate a comprehensive summary of various Mo based materials, such as MoO2, MoS2 and Mo2C. Moreover, state of the art designs of the catalyst structures are presented, to improve the activity and stability for hydrogen evolution, including Mo based carbon composites, heteroatom doping and heterostructure construction. The structure–performance relationships relating to the number of active sites, electron/ion conductivity, H/H2O binding and activation energy, as well as hydrophilicity, are discussed in depth. Finally, conclusive remarks and future works are proposed. Full article
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