Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon

doi:10.1038/s42004-024-01194-3

IMR OpenIR

	Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon
	Albashir, Abdalazeez Ismail Mohamed 1,2; Lu, Xingyu 1,2; Dai, Xueya 1,2; Qi, Wei 1,2
通讯作者	Qi, Wei(wqi@imr.ac.cn)
	2024-05-13
发表期刊	COMMUNICATIONS CHEMISTRY
ISSN	2399-3669
卷号	7 期号:1 页码:8
摘要	Two-electron oxygen reduction reaction (2e- ORR) is a promising alternative to energy-intensive anthraquinone process for hydrogen peroxide (H2O2) production. Metal-free nanocarbon materials have garnered intensive attention as highly prospective electrocatalysts for H2O2 production, and an in-depth understanding of their porous structure and active sites have become a critical scientific challenge. The present research investigates a range of porous carbon catalysts, including non-porous, microporous, and mesoporous structures, to elucidate the impacts of porous structures on 2e- ORR activity. The results highlighted the superiority of mesoporous carbon over other porous materials, demonstrating remarkable H2O2 selectivity. Furthermore, integration of X-ray photoelectron spectroscopy (XPS) data analysis with electrochemical assessment results unravels the moderate surface oxygen content is the key to increase 2e- ORR activity. These results not only highlight the intricate interplay between pore structure and oxygen content in determining catalytic selectivity, but also enable the design of carbon catalysts for specific electrochemical reactions. The anthraquinone process is currently the predominant method for large-scale H2O2 production, but the reaction's high energy consumption and hazardous waste generation spur the search for alternatives. Here, the authors investigate the two-electron oxygen reduction reactivities of metal-free non-porous, micro-, and mesoporous carbon catalysts to elucidate the impacts of porous structures, finding mesoporous structures show the highest H2O2 production selectivity.
资助者	National Natural Science Foundation of China (National Science Foundation of China) ; NSFC of China ; China Baowu Low Carbon Metallurgy Innovation
DOI	10.1038/s42004-024-01194-3
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (National Science Foundation of China)[22072163] ; National Natural Science Foundation of China (National Science Foundation of China)[U23A20545] ; NSFC of China[Foundation-BWLCF202113] ; NSFC of China[2023-PY13] ; China Baowu Low Carbon Metallurgy Innovation
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:001221299200002
出版者	NATURE PORTFOLIO
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186344
专题	中国科学院金属研究所
通讯作者	Qi, Wei
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Albashir, Abdalazeez Ismail Mohamed,Lu, Xingyu,Dai, Xueya,et al. Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon[J]. COMMUNICATIONS CHEMISTRY,2024,7(1):8.
APA	Albashir, Abdalazeez Ismail Mohamed,Lu, Xingyu,Dai, Xueya,&Qi, Wei.(2024).Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon.COMMUNICATIONS CHEMISTRY,7(1),8.
MLA	Albashir, Abdalazeez Ismail Mohamed,et al."Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon".COMMUNICATIONS CHEMISTRY 7.1(2024):8.