100 Gram-Scale Organic-free Synthesis of Bi2O2(CO3)2 Nanosheets for High-Selective Formate Production in CO2 Electroreduction

IF 9.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A Pub Date : 2025-09-29 DOI:10.1039/d5ta06873h

Minglong Guo, Xiaoyan He, Guangxing Yang, Hongjuan Wang, Feng Peng, Guoqiang Cao, Qiao Zhang, Zhiting Liu

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Abstract

In the realm of CO 2 electrochemical reduction, Bi 2 O 2 CO 3 nanosheets have garnered attention for their ability to selectively produce formate. However, as CO 2 electroreduction technologies advance toward industrial applications, a scalable and green synthesis method is urgently needed. Our research leverages three common Bi-based inorganic salts-BiCl 3 , Bi 2 (SO 4 ) 3 , and Bi(NO 3 ) 3 -as precursors to develop a straightforward process of hydrolysis followed by anions exchange. This method produces high yields of Bi 2 O 2 CO 3 nanosheets without the need for organic solvents or external heating, even at a large scale of ~100 grams, ensuring both sustainability and cost-efficiency. The resulting nanosheets achieved Faradaic efficiencies exceeding 90% across a wide range of potentials for formate production. The combination of innovative synthesis and effective CO 2 conversion underscores the potential of Bi 2 O 2 CO 3 for industrial-scale applications in sustainable energy and chemical production.

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100克级无有机合成Bi2O2(CO3)2纳米片用于高选择性CO2电还原生产甲酸盐

在二氧化碳电化学还原领域，bi2o2co3纳米片因其选择性生成甲酸盐的能力而备受关注。然而，随着二氧化碳电还原技术向工业应用方向发展，迫切需要一种可扩展的绿色合成方法。我们的研究利用三种常见的铋基无机盐——bicl 3、bi2 (so4) 3和Bi(no3) 3——作为前体，开发了一种直接的水解过程，然后进行阴离子交换。这种方法在不需要有机溶剂或外部加热的情况下，即使在~100克的大规模生产中，也能生产出高产量的bi2o2co3纳米片，确保了可持续性和成本效益。由此产生的纳米片在很大范围内实现了超过90%的法拉第效率。创新的合成和有效的二氧化碳转化相结合，突出了二氧化钛在可持续能源和化学品生产中的工业规模应用潜力。

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来源期刊

Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

19.50

自引率

5.00%

发文量

1892

审稿时长

1.5 months

期刊介绍： The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.