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Materials
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Electrocatalytic Nanomaterials for Energy Conversion and Storage
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Electrocatalytic Nanomaterials for Energy Conversion and Storage

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (10 November 2022) | Viewed by 6795

Special Issue Editors

Dr. Zhien Zhang

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Guest Editor
William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
Interests: gas separation; CO2 capture; polymeric membrane; membrane separation; membrane contactor; membrane absorption; modeling; membrane preparation; membrane characterization
Special Issues, Collections and Topics in MDPI journals
Dr. Hao Li

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Guest Editor
Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
Interests: energy catalysis; catalysis theory; electrocatalysis; density functional theory; machine learning
Special Issues, Collections and Topics in MDPI journals
Dr. Zhao Ding

E-Mail Website
Guest Editor
Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, IL, USA
Interests: hydrogen storage materials; nano-engineering; surface modification; silicon nanowires; silicon refining
Special Issues, Collections and Topics in MDPI journals
Dr. Giorgio Besagni

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Guest Editor
Ricerca Sul Sistema Energetico, Power System Development Department, Milan, Italy
Interests: innovative renewable energy-based technologies; CFD; lumped energy system components; refrigeration systems; multiphase flows; energy poverty
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electrocatalysis has been in dramatic development in recent decades. The unique properties of many nanostructures of electrocatalytic materials and their surfaces have led to many exciting topics in the field of catalysis. As an important branch of catalysis, electrocatalysis is a type of important catalytic reaction that is able to convert and store energy through reactions involving electron transfer. However, the study of electrocatalysis is a huge challenge due to the highly complicated reaction network, the variety of reaction selectivity, and the puzzling reaction mechanisms.

The aim of this Special Issue is to cover the state-of-the-art studies and discussions in electrocatalytic nanomaterials for energy conversion and storage. The topics of prospective publications will include, but are not limited to:

  • High-performance electrocatalysts for industrially-important reactions;
  • Electrocatalysis for fuel cell applications;
  • Water-splitting reactions;
  • CO2 capture and electrocatalytic reduction;
  • Design and understanding of effective electrocatalysts;
  • Electrocatalysis with membranes;
  • New insights into the electrocatalytic reactions at the surface of nanomaterials;
  • Theoretical and computational study on the catalysts design and mechanistic understanding;
  • Energy storage in nanomaterials;
  • Machine-learning-assisted studies on electrocatalytic materials.

Dr. Zhien Zhang
Dr. Hao Li
Dr. Zhao Ding
Dr. Giorgio Besagni
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. Materials 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 2600 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.

Published Papers (3 papers)

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Research

13 pages, 2287 KiB  
Article
Oxidation-Induced and Hydrothermal-Assisted Template-Free Synthesis of Mesoporous CeO2 for Adsorption of Acid Orange 7
by Yaohui Xu and Zhao Ding
Materials 2022, 15(15), 5209; https://doi.org/10.3390/ma15155209 - 27 Jul 2022
Cited by 4 | Viewed by 1187
Abstract
Hydrogen peroxide (H2O2), an accessible and eco-friendly oxidant, was employed for the template-free hydrothermal synthesis of mesoporous CeO2 based on a cerium carbonate precursor (Ce2(CO3)3•xH2O). Its microstructure and [...] Read more.
Hydrogen peroxide (H2O2), an accessible and eco-friendly oxidant, was employed for the template-free hydrothermal synthesis of mesoporous CeO2 based on a cerium carbonate precursor (Ce2(CO3)3•xH2O). Its microstructure and physicochemical properties were characterized by XRD, TEM and N2 sorption techniques. The formation of the CeO2 phase with a porous structure was strongly dependent on the presence of H2O2, while the values of the BET surface area, pore diameter and pore volume of CeO2 were generally related to the amount of H2O2 in the template-free hydrothermal synthesis. The BET surface area and pore volume of the mesoporous CeO2 synthesized hydrothermally at 180 °C with 10 mL H2O2 were 112.8 m2/g and 0.1436 cm3/g, respectively. The adsorption process had basically finished within 30 min, and the maximum adsorption efficiency within 30 min was 99.8% for the mesoporous CeO2 synthesized hydrothermally at 140 °C with 10 mL, when the initial AO7 concentration was 120 mg/L without pH preadjustment. The experimental data of AO7 adsorption were analyzed using the Langmuir and Freundlich isotherm modes. Moreover, the mesoporous CeO2 synthesized at 140 °C with 10 mL H2O2 was regenerated in successive adsorption–desorption cycles eight times without significant loss in adsorption capacity, suggesting that the as-synthesized mesoporous CeO2 in this work was suitable as an adsorbent for the efficient adsorption of AO7 dye from an aqueous solution. Full article
(This article belongs to the Special Issue Electrocatalytic Nanomaterials for Energy Conversion and Storage)
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12 pages, 2645 KiB  
Article
One-Pot Synthesis and High Electrochemical Performance of CuS/Cu1.8S Nanocomposites as Anodes for Lithium-Ion Batteries
by Lin-Hui Wang, Yan-Kun Dai, Yu-Feng Qin, Jun Chen, En-Long Zhou, Qiang Li and Kai Wang
Materials 2020, 13(17), 3797; https://doi.org/10.3390/ma13173797 - 28 Aug 2020
Cited by 14 | Viewed by 2977
Abstract
CuS and Cu1.8S have been investigated respectively as anodes of lithium-ion batteries because of their abundant resources, no environment pollution, good electrical conductivity, and a stable discharge voltage plateau. In this work, CuS/Cu1.8S nanocomposites were firstly prepared simultaneously by [...] Read more.
CuS and Cu1.8S have been investigated respectively as anodes of lithium-ion batteries because of their abundant resources, no environment pollution, good electrical conductivity, and a stable discharge voltage plateau. In this work, CuS/Cu1.8S nanocomposites were firstly prepared simultaneously by the one-pot synthesis method at a relatively higher reaction temperature 200 °C. The CuS/Cu1.8S nanocomposites anodes exhibited a high initial discharge capacity, an excellent reversible rate capability, and remarkable cycle stability at a high current density, which could be due to the nano-size of the CuS/Cu1.8S nanocomposites and the assistance of Cu1.8S. The high electrochemical performance of the CuS/Cu1.8S nanocomposites indicated that the CuxS nanomaterials will be a potential lithium-ion battery anode. Full article
(This article belongs to the Special Issue Electrocatalytic Nanomaterials for Energy Conversion and Storage)
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11 pages, 3221 KiB  
Article
A Nanosensor for Naked-Eye Identification and Adsorption of Cadmium Ion Based on Core–Shell Magnetic Nanospheres
by Yaohui Xu, Chi Deng, Zhigang Xiao, Chang Chen, Xufeng Luo, Yang Zhou and Qiang Jiang
Materials 2020, 13(17), 3678; https://doi.org/10.3390/ma13173678 - 20 Aug 2020
Viewed by 1679
Abstract
Fe3O4@SiO2 nanospheres with a core–shell structure were synthesized and functionalized with bis(2-pyridylmethyl)amine (BPMA). The photoresponses of the as-obtained Fe3O4@SiO2-BPMA for Cr3+, Cd2+, Hg2+ and Pb2+ ions [...] Read more.
Fe3O4@SiO2 nanospheres with a core–shell structure were synthesized and functionalized with bis(2-pyridylmethyl)amine (BPMA). The photoresponses of the as-obtained Fe3O4@SiO2-BPMA for Cr3+, Cd2+, Hg2+ and Pb2+ ions were evaluated through irradiation with a 352 nm ultraviolet lamp, and Fe3O4@SiO2-BPMA exhibited remarkable fluorescence enhancement toward the Cd2+ ion. The adsorption experiments revealed that Fe3O4@SiO2-BPMA had rapid and effective adsorption toward the Cd2+ ion. The adsorption reaction was mostly complete within 30 min, the adsorption efficiency reached 99.3%, and the saturated adsorption amount was 342.5 mg/g based on Langmuir linear fitting. Moreover, Fe3O4@SiO2-BPMA displayed superparamagnetic properties with the saturated magnetization of 20.1 emu/g, and its strong magnetic sensitivity made separation simple and feasible. Our efforts in this work provide a potential magnetic functionalized nanosensor for naked-eye identification and adsorption toward the Cd2+ ion. Full article
(This article belongs to the Special Issue Electrocatalytic Nanomaterials for Energy Conversion and Storage)
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