DataVXAdvanced Functional MaterialsPaper
journal article·2023-01

Pre‐Adsorbed H‐Assisted N2 Activation on Single‐Atom Cadmium‐O5 Decorated In2O3 for Efficient NH3 Electrosynthesis

Zhibo Yao, Shiqiang Liu, Honghong Liu, Yukun Ruan, Song Hong, Tai‐Sing Wu, Leiduan Hao, Yun‐Liang Soo, Pei Xiong, Molly Meng‐Jung Li, Alex W. Robertson, Qineng Xia, Liang‐Xin Ding, Zhenyu Sun

Advanced Functional Materials· Volume 33· Issue 5
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Source abstract

Abstract

Abstract The electrocatalytic nitrogen reduction reaction (NRR) provides a promising avenue for sustainable and decentralized green ammonia (NH3) synthesis. To promote the NRR, the design and synthesis of efficient electrocatalysts with an elucidated reaction mechanism is critically important. Here, surface hydrogenation‐facilitated NRR is demonstrated to yield NH3 at low overpotentials on oxygen‐deficient In2O3 plates decorated with single atom CdO5 that have a weak N2‐binding capability. Adsorbed *H is calculated to be first produced via the Volmer reaction (H2O + e− → *H + OH−) and then reacts with dissolved N2 to generate *N2H2, which is likely the rate determining step (RDS) of the whole process. Cd atoms and oxygen vacancies in In2O3 jointly enhance the activation of N2 and accelerate the RDS, boosting the NRR. An NH3 production rate of as high as 57.5 µg h−1 mgcat−1 is attained at a mild potential, which is retained to a large extent even after 44 h of continuous polarization.
Source: crossref · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Caching and Content Delivery · Advanced Photocatalysis Techniques

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

Affiliations

State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China

School of Environmental Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China

National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan

Department of Physics National Tsing Hua University Hsinchu 30013 Taiwan

Department of Applied Physics The Hong Kong Polytechnic University Hong Kong 999077 China

Department of Physics University of Warwick Coventry CV47AL UK

College of Biological Chemical Science and Engineering Jiaxing University Jiaxing 314001 China

Funding

Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China

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