DataVXACS Materials LettersPaper
journal article·2021-07-05

Bimetallic PdAu Nanoframes for Electrochemical H2O2 Production in Acids

Xuan Zhao, Hao Yang, Jie Xu, Tao Cheng, Yanguang Li

ACS Materials Letters· Volume 3· Issue 7
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Source abstract

Abstract

Electrochemical oxygen reduction reaction via the two-electron pathway to H2O2 represents a promising route to enable its on-site, on-demand production for direct consumer use. In particular, running this reaction in acids is practically relevant and scientifically challenging. Herein, we demonstrate that bimetallic PdAu nanoframes can be prepared via stepwise solution growth and etching under well-controlled conditions. The product exhibits a great performance for efficient H2O2 production in 0.1 M HClO4. A positive onset potential and high H2O2 yield of >90% are measured, which are considerably improved over pure Au and other Au-based alloys. Theoretical simulations indicate that the incorporation of dilute Pd atoms enhances the adsorption of *OOH as the key intermediate, and thereby promotes the reaction activity and selectivity. Our catalyst can also be used for the electro-Fenton reaction to catalyze the degradation of organic dyes in minutes.
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Research context

Metals & alloysNanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China

Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, China

Funding

Collaborative Innovation Center of Suzhou Nano Science and Technology · Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University

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