ZrO2负载Pt纳米颗粒电催化析氢反应

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-02-06 DOI:10.1016/j.ijhydene.2025.02.024

Muhammad Bilal Hussain , Munir Ahmad , Xingxing Cheng , Rashid Mehmood , Zeeshan Ajmal , Shabab Hussain , Muhammad Tayyab , Vitaly Gitis

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引用次数: 0

摘要

合理设计和构建稳定的金属纳米粒子是解决能源短缺和环境恶化问题的迫切需要。本文采用易离子交换策略结合软模板法，以负载铂的金属有机骨架（Pt/UiO-66-NH2）纳米复合材料为原料，合成了二氧化锆负载铂（ZrO2/Pt）纳米异质结构电催化剂。UiO-66-NH2的八面体形态、高表面积和合适的孔隙率对Pt纳米粒子在其表面的锚定尤为有利。煅烧步骤是诱导缺陷和产生氧空位的关键步骤，这有助于稳定ZrO2基体上的Pt NPs。值得注意的是，即使经过煅烧，ZrO2/Pt异质结构的形貌仍与原始Pt/UiO-66-NH2保持一致。此外，在煅烧过程中，ZrO2/Pt异质结构中原位生成的缺陷和氧空位显著提高了其导电性。结果表明，制备的ZrO2/Pt异质结构在析氢反应（HER）中的电化学性能（η10 = 38 mV）优于目前最先进的碳载体铂（Pt/C）电催化剂（η10 = 56 mV）。该研究强调了金属有机框架（MOFs）基材料在制造先进的HER电催化剂中的关键作用，ZrO2/Pt具有优异的HER活性，为绿色制氢提供了广阔的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

ZrO2 supported Pt nanoparticles for robust electrocatalytic hydrogen evolution reactions

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ZrO2 supported Pt nanoparticles for robust electrocatalytic hydrogen evolution reactions

The rational design and construction of stable metal nanoparticles (NPs) are urgently needed to address the challenges of energy scarcity and environmental degradation. In this work, zirconium dioxide-supported platinum (ZrO₂/Pt) nanoparticles heterostructure electrocatalyst was synthesized from a platinum-loaded metal-organic framework (Pt/UiO-66-NH₂) nanocomposite using a facile ion-exchange strategy combined with a soft template method. The octahedral morphology, high surface area and suitable porosity of UiO-66-NH₂ are particularly advantageous for anchoring Pt NPs on its surface. The calcination step is crucial for inducing defects and generating oxygen vacancies, which help stabilize the Pt NPs on ZrO₂ matrix. Notably, the morphology of the ZrO₂/Pt heterostructure remains consistent with that of the original Pt/UiO-66-NH₂ even after calcination. Additionally, the in-situ generated defects and oxygen vacancies in the ZrO₂/Pt heterostructure during the calcination process significantly enhance its electrical conductivity. As a result, the as-prepared ZrO₂/Pt heterostructure exhibits superior electrochemical performance (η₁₀ = 38 mV) in hydrogen evolution reactions (HER) compared to the state-of-the-art commercial platinum on carbon support (Pt/C) electrocatalyst (η₁₀ = 56 mV). This study highlights the pivotal role of metal-organic frameworks (MOFs)-based material in fabricating advanced electrocatalyst for HER, with the exceptional HER activity of ZrO₂/Pt offering promising prospects for green hydrogen production.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.