DataVXACS Materials LettersPaper
journal article·2024-01-01

In Situ Generation of Flash Graphene Supported Spherical Bismuth Nanoparticles in Less than 200 ms for Highly Selective Carbon Dioxide Electroreduction

Miao Wang, Huaizhu Wang, Yating Gu, Mengfei Zhu, Mohan Kumar, Junchuan Liang, Zuoxiu Tie, Jing Ma, Zhong Jin

ACS Materials Letters· Volume 6· Issue 1
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Source abstract

Abstract

Flash Joule heating (FJH) method is an emerging and powerful technique that has exhibited great potential in various domains. Herein, we successfully prepared flash graphene (FG)-supported Bi nanoparticles (Bi-NPs/FG) via the ultrafast and ecofriendly FJH method in less than 200 ms for the first time. Benefited from the synergistic effect of highly conductive FG and active Bi nanocrystals, the Bi-NPs/FG hybrid shows a highly selective CO 2 electroreduction with an ultrahigh Faradaic efficiency of 93.8% toward C1 product (i.e., formate). Furthermore, the findings from Density Functional Theory (DFT) calculations unveil that the reconstruction process not only enhances the bonding strength of the surface Bi-OCHO*, but also optimizes the adsorption energy of the key intermediate (OCHO*), thus benefiting the production of formate. In addition, we conducted an extension study of the FJH route to demonstrate its versatility in preparing a range of other metal/alloy NPs encased in FG. This work presents a feasible pathway to the superfast and massive production of highly efficient electrocatalyst for CO 2 conversion, and it can be extended to other application scenarios with great potential.
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Research context

Metals & alloysNanomaterialsCatalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Advanced Thermoelectric Materials and Devices · Ionic liquids properties and applications

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

Affiliations

State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China

Department of Chemistry, PES Institute of Technology and Management, Sagar Road, Guddada Arakere, Kotegangoor-577204, Shivamogga India

Nanjing Tieming Energy Technology Co., Ltd., Nanjing, Jiangsu 210093, P. R. China

Suzhou Tierui New Energy Technology Co., Ltd., Suzhou, Jiangsu 215228, P. R. China

Jiangsu BTR Nano Technology Co., Ltd., Changzhou, Jiangsu 213200, P. R. China

Funding

Fundamental Research Funds for the Central Universities · Jiangsu Provincial Department of Science and Technology · National Natural Science Foundation of China · Nanjing City · Suzhou Gusu Leading Talent Program of Science and Technology Innovation and Entrepreneurship in Wujiang District

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