由生成的石墨烯片锚定的脱合金多孔金作为甲醇电氧化反应的高活性催化剂。

Dealloyed porous gold anchored by generated graphene sheets as high activity catalyst for methanol electro-oxidation reaction.

作者信息

Xu Hui, Liu Shuai, Pu Xiaoliang, Shen Kechang, Zhang Laichang, Wang Xiaoguang, Qin Jingyu, Wang Weimin

机构信息

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China

Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University Jinan 250061 China

出版信息

RSC Adv. 2020 Jan 9;10(3):1666-1678. doi: 10.1039/c9ra09821f. eCollection 2020 Jan 7.

DOI:10.1039/c9ra09821f

PMID:35494686

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9047550/

Abstract

A novel one-step method to prepare the nanocomposites of reduced graphene oxide (RGO)/nanoporous gold (NPG) is realized by chemically dealloying an AlAu precursor. The RGO nanosheets anchored on the surface of NPG have a cicada wing like shape and act as both conductive agent and buffer layer to improve the catalytic ability of NPG for methanol electro-oxidation reaction (MOR). This improvement can also be ascribed to the microstructure change of NPG in dealloying with RGO. This work inspires a facile and economic method to prepare the NPG based catalyst for MOR.

摘要

通过对AlAu前驱体进行化学脱合金化，实现了一种制备还原氧化石墨烯（RGO）/纳米多孔金（NPG）纳米复合材料的新型一步法。锚定在NPG表面的RGO纳米片呈蝉翼状，同时作为导电剂和缓冲层，以提高NPG对甲醇电氧化反应（MOR）的催化能力。这种改善也可归因于NPG在与RGO脱合金化过程中的微观结构变化。这项工作启发了一种简便且经济的方法来制备用于MOR的基于NPG的催化剂。