journal article·2020-09

Greatly Enhanced Electrocatalytic N2 Reduction over V2O3/C by P Doping

Xin Cheng, Jianwei Wang, Wei Xiong, Ting Wang, Tongwei Wu, Siyu Lu, Guang Chen, Shuyan Gao, Xifeng Shi, Zhenju Jiang, Xiaobin Niu, Xuping Sun

ChemNanoMat· Volume 6· Issue 9
Publisher page

Abstract

Abstract As a carbon‐neutral alternative technology to the Haber−Bosch process, electrochemical N2 reduction enables eco‐friendly NH3 synthesis under ambient conditions but requires electrocatalysts to drive the N2 reduction reaction (NRR). Here, P doping is proposed as a valid strategy to greatly increase the NRR activity of the V2O3/C shuttle‐like nanostructure. In 0.1 M Na2SO4, the NH3 yield of original V2O3/C is 12.6 μg h−1 mg−1cat. and a Faraday efficiency (FE) of 6.06% at −0.45 V and −0.25 V vs. reversible hydrogen electrode (RHE), respectively. P‐doped V2O3/C (P−V2O3/C), with a mass ratio of P of 6.05%, is capable of achieving a large NH3 yield of 22.4 μg h−1 mg−1cat. at −0.35 V vs. RHE, and a high FE of 13.78% at −0.25 V vs. RHE. It also shows high electrochemical durability and outstanding selectivity for NH3 formation. Combined with density functional theory calculations, the catalytic mechanism was further explored.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Advanced Photocatalysis Techniques · Catalytic Processes in Materials Science

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

Affiliations

School of Science Xihua University Chengdu 610039 Sichuan China

School of Materials and Energy University of Electronic Science and Technology of China Chengdu 611731 Sichuan China

Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 Sichuan China

Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450001 Henan China

Green The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Qufu 273165 Shandong China

School of Materials Science and Engineering Henan Normal University Xinxiang 453007 Henan China

College of Chemistry Chemical Engineering and Materials Science Shandong Normal University Jinan 250014 Shandong China

Funding

National Natural Science Foundation of China

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