Ambient Electroreduction of Nitrite to Ammonia over Ni Nanoparticle Supported on Molasses-Derived Carbon Sheets

Xun He; Xiuhong Li; Xiaoya Fan; Jun Li; Donglin Zhao; Longcheng Zhang; Shengjun Sun; Yongsong Luo; Dongdong Zheng; Lisi Xie; Abdullah M. Asiri; Qian Liu; Xuping Sun

doi:10.1021/acsanm.2c03720

journal article·2022-10-28

Ambient Electroreduction of Nitrite to Ammonia over Ni Nanoparticle Supported on Molasses-Derived Carbon Sheets

Xun He, Xiuhong Li, Xiaoya Fan, Jun Li, Donglin Zhao, Longcheng Zhang, Shengjun Sun, Yongsong Luo, Dongdong Zheng, Lisi Xie, Abdullah M. Asiri, Qian Liu, Xuping Sun

ACS Applied Nano Materials· Volume 5· Issue 10

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Source abstract

Abstract

Electrochemical nitrite (NO2–) reduction is a promising approach for ambient ammonia (NH3) synthesis and simultaneous mitigation of NO2– contaminant in wastewater. Herein, we report Ni nanoparticle supported on molasses-derived carbon sheets (Ni@MDC) as an earth-abundant electrocatalyst for NO2–-to-NH3 conversion. When tested in alkaline solutions with 0.1 M NO2–, such Ni@MDC obtains a high NH3 yield of 6.3 mg h–1 mgcat–1 with a Faradaic efficiency of 65.4% at −0.8 V versus reversible hydrogen electrode under ambient conditions. Furthermore, it shows remarkable electrochemical stability during long-term electrolysis and cycling tests.

Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials 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

Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China

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

Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

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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