化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (1) : 180-183. DOI: 10.19817/j.cnki.issn1006-3536.2025.01.023

科学研究

介孔钙钛矿/g-C₃N₄的制备及氧还原性能研究

闫蕊, 柳艺东, 张泽, 江康伟, 牛李琦, 刘超

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Preparation and oxygen reduction performance of mesoporous perovskite/g-C₃N₄

Yan Rui, Liu Yidong, Zhang Ze, Jiang Kangwei, Niu Liqi, Liu Chao

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文章历史 +

Received		Published
2023-11-22		2025-01-20
Issue Date	Revised Date
2025-01-17	2023-11-22

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摘要

采用溶胶凝胶-硬模板法制备介孔钙钛矿(LFO)前驱体,采用高温固相反应法制备g-C₃N₄,并采用冷凝回流法将LFO与不同比例的g-C₃N₄进行复合。通过X射线衍射、比表面积分析、扫描电子显微镜、循环伏安、线性扫描等方式对复合材料结构和性能进行表征测试。结果表明,LaFeO₃-70% g-C₃N₄(LFO-70%)氧还原电位为0.75V,半波电位为0.65V,初始电位为0.8V,具有最优异的氧还原催化性能。

Abstract

In this paper,the sol gel-hard template method was used to prepare mesoporous perovskite (LFO) precursor,and high-temperature solid phase reaction was used to prepare g-C₃N₄.LFO and g-C₃N₄ were then combined in different proportions.The structure and properties of the composites were characterized and tested by XRD,BET,SEM,CV,LSV and EIS.The results showed that LaFeO₃-70% g-C₃N₄ (LFO-70%) had an oxygen reduction potential of 0.75V,a half wave potential of 0.65V,and an initial potential of 0.8V,exhibiting the most excellent catalytic activity for oxygen reduction.

关键词

溶胶凝胶-硬模板法 / 介孔钙钛矿 / 氧还原

Key words

sol gel-hard template method / mesopores perovskite / oxygen reduction

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介孔钙钛矿/g-C₃N₄的制备及氧还原性能研究[J]. 化工新型材料, 2025, 53(1): 180-183 DOI:10.19817/j.cnki.issn1006-3536.2025.01.023

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