Exceptional activity of amino-modified rGO-immobilized PdAu nanoclusters for visible light-promoted dehydrogenation of formic acid

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外文摘要：Formic acid(FA),which is obtainable through CO2 hydrogenation with green hydrogen or biomass con-version,has been used as a prospective liquid organic hydrogen carrier(LOHC)because of the abundant advantages of renewability,wide availability,stability,and high volumetric capacity(53g H2/L).The de-velopment of highly efficient catalytic systems to achieve enhanced catalytic activity is attractive but still challenging.Herein,ultrafine and highly dispersed PdAu nanoclusters(NCs)anchored on amino-modified reduced graphene oxide(ArGO)were successfully synthesized via a facile impregnation-reduction method and applied as a catalyst toward formic acid dehydrogenation(FAD).Benefiting from the promoting ef-fect of amino groups,the strain and ligand effect in the alloy,and the Mott-Schottky effect between PdAu NCs and ArGO,the resultant PdAu/ArGO affords an ultrahigh activity under visible light irradiation with an exceptional turnover frequency value of 10,699.5h-1 at 298 K without any additives,more than 2.6 times improvement than that under dark,which is the highest among all reported catalysts under the same conditions.This study provides a green and convenient strategy for developing more efficient and sustainable FAD catalysts and promotes the effective utilization of FA as a prospective renewable LOHC.

外文关键词：

Visible-light-enhancedHydrogen productionFormic acidPd-AuHeterogeneous catalyst

作者：

Yiyue Ding、Qiuxiang Zhang、Lei Zhang、Qilu Yao、Gang Feng、Zhang-Hui Lu

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作者单位：

Key Laboratory of Energy Catalysis and Conversion of Nanchang,College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang 330022,China

School of Chemistry and Chemical Engineering,Nanchang University,Nanchang 330031,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaDepartment of Science and Technology of Jiangxi ProvinceDepartment of Science and Technology of Jiangxi ProvinceDepartment of Science and Technology of Jiangxi Province

项目编号：

221620142216201320212ACB20400920212BCJL2305920232ACB214002

出版年：

2024

DOI：

10.1016/j.cclet.2024.109593

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(7)