WS2–ZnO Nanostructures for Photoelectrochemical Hydrogen Generation

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Parent link:ACS Applied Energy Materials.— .— Washington: ACS Publications
Vol. 7, iss. 21.— 2024.— P. 9756-9765
Tác giả của công ty: National Research Tomsk Polytechnic University (570)
Tác giả khác: Rakhimbekov K. A. Kakhramon Anvar ugli, Potgieter J. Johannes, Valiev D. T. Damir Talgatovich, An V. V. Vladimir Vilorievich, Blinova A. A. Anna Alekseevna, Usoltseva N. V. Natalia Vasilievna, Pustovalov A. V. Aleksey Vitalievich, Vasilevichev M. Yu. Maksim Yurjevich, Platonova A. S. Aleksandra Sergeevna, Stepanov S. A. Sergey Aleksandrovich, Kokotov D. G. Dmitry Georgievich, Sypchenko V. S. Vladimir Sergeevich
Tóm tắt:Title screen
WS2−ZnO nanostructured materials are of great interest inthe area of green energy due to their potential application for hydrogengeneration. In the present work, we report an efficient method to produceWS2−ZnO nanoheterostructures through electrospark erosion of zincgranules in aqueous solutions of hydrogen peroxide, with the simultaneousaddition of nanostructured WS2. WS2−ZnO nanostructures prepared withthis synthesis method were carefully characterized by XRD, TEM, BET,FTIR, UV−vis, and Raman spectroscopy analyses to establish theirchemical compositions and morphology. According to the XRD analysis,the resulting electrospark erosion products represent heterostructurescontaining individual phases of hexagonal tungsten disulfide and zinc oxide.The crystallite sizes varied from 4.3 to 66.7 nm for both phases. Thiscorrelated with the TEM measurements. Cyclic voltammetry (CV) andelectrochemical impedance spectroscopy (EIS) showed that the WS2−ZnOnanostructure decorated electrodes displayed improved conductivity, photocurrent density (by 2.564 mA/cm2), and hydrogen gasevolution under light conditions in contrast to the dark experiments. The investigation confirmed the potential of the WS2−ZnOnanostructures for efficient hydrogen generation for green energy applications
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Được phát hành: 2024
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Truy cập trực tuyến:https://doi.org/10.1021/acsaem.4c01488
Định dạng: Điện tử Chương của sách
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=676965

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