单层过渡金属二钴化物上超小型铂纳米粒子的光化学还原，用于氢气进化反应

IF 9 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Materials Today Energy Pub Date : 2024-03-30 DOI:10.1016/j.mtener.2023.101487

Liang Mei, Yuefeng Zhang, Ting Ying, Weikang Zheng, Honglu Hu, Ruijie Yang, Ruixin Yan, Yue Zhang, Chong Cheng, Bilu Liu, Shuang Li, Zhiyuan Zeng

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引用次数: 0

摘要

通过一种基于电化学锂电位剥离法精心合成了单层 TaS 和 TiS 纳米片。随后，通过一种环境友好型光化学还原工艺，将粒径介于 1.2 纳米和 1.6 纳米之间的超小型铂纳米粒子专业地沉积到这些单层纳米片上。所制备的铂-钽和铂-钛复合材料的氢进化反应（HER）活性与商用铂/钛相当。密度泛函理论计算显示，引入的 Pt (111) 平面在能量上促进了 ∗H 的吸附，其最佳 ΔG 值为 0.09 eV。此外，这些复合材料还表现出卓越的循环稳定性，远远超过了 Pt/C。这种引人注目的性能突出了铂-钽和铂-钛混合材料作为 HER 催化剂替代品的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photochemical reduction of ultrasmall Pt nanoparticles on single-layer transition-metal dichalcogenides for hydrogen evolution reactions

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Photochemical reduction of ultrasmall Pt nanoparticles on single-layer transition-metal dichalcogenides for hydrogen evolution reactions

Single-layer TaS and TiS nanosheets were meticulously synthesized through an electrochemical lithium-intercalation-based exfoliation method. Subsequently, ultrasmall Pt nanoparticles, finely sized between 1.2 and 1.6 nm, were expertly deposited onto these monolayer nanosheets via an environmentally friendly photochemical reduction process. The resulted Pt-TaS and Pt-TiS composites exhibit hydrogen evolution reaction (HER) activity comparable with commercial Pt/C. Density functional theory calculations reveal that the introduced Pt (111) plane energetically promotes the adsorption of ∗H with an optimal ΔG value of 0.09 eV. Furthermore, these composite materials demonstrate outstanding cycle stability, far exceeding that of Pt/C. This compelling performance underscores the potential of Pt-TaS and Pt-TiS hybrids as promising alternatives for HER catalysts.

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来源期刊

Materials Today Energy Materials Science-Materials Science (miscellaneous)

CiteScore

15.10

自引率

7.50%

发文量

291

审稿时长

15 days

期刊介绍： Materials Today Energy is a multi-disciplinary, rapid-publication journal focused on all aspects of materials for energy. Materials Today Energy provides a forum for the discussion of high quality research that is helping define the inclusive, growing field of energy materials. Part of the Materials Today family, Materials Today Energy offers authors rigorous peer review, rapid decisions, and high visibility. The editors welcome comprehensive articles, short communications and reviews on both theoretical and experimental work in relation to energy harvesting, conversion, storage and distribution, on topics including but not limited to: -Solar energy conversion -Hydrogen generation -Photocatalysis -Thermoelectric materials and devices -Materials for nuclear energy applications -Materials for Energy Storage -Environment protection -Sustainable and green materials