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Transfer of molecular oxygen and electrons improved by the regulation of C-N/C = O for highly efficient 2e-ORR
Zhang, Tong1,2,3; Wu, Jiandong4,5; Wang, Zhi1,3; Wei, Zhen6; Liu, Junhao1,3; Gong, Xuzhong1,2,3
2022-04-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume433Pages:11
AbstractIn situ hydrogen peroxide (H2O2) production by two-electron oxygen reduction reaction (2e-ORR) is limited by sluggish dynamics which are divided into molecule transfer and reaction kinetics. Ordered matrix and disordered edge is synthesized to regulate molecules and electrons transfer. Interface Atomic Domains (IAD) are used to regulate the dynamics of 2e-ORR, which are a local chemical environment composed of C/N/O atoms (C-N, C = O). IAD are synthesized by biomass tar through pyrolysis, oxidation and doping. Sparse pyridine-N are constructed by the formation of C = O groups and the placeholder of pyrrole-N. Results indicate that surface pyridine-N improves interface electrons transfer, while sparse pyridine-N increases 2e-ORR selectivity. Meanwhile, the surface C = O groups provide strong chemical adsorption for O2 molecules. The collaboration of pyridine-N/C = O groups realized the high activity and selectivity of 2e-ORR. As a result, the synthetic material with N, O-functional groups possesses over 90% selectivity for 2e-ORR during a wide potential range.
Keyword2e-ORR Biomass tar Interface atomic domains Molecule transfer Interface electron transfer
DOI10.1016/j.cej.2021.133591
Language英语
WOS KeywordHIGH ELECTROCATALYTIC ACTIVITY ; REDUCTION REACTION ; HYDROGEN-PEROXIDE ; CARBON MATERIALS ; GRAPHENE ; TEMPERATURE ; GENERATION ; CATALYSTS ; FENTON ; DESULFURIZATION
Funding ProjectNatural Science Foundation of China[21878299] ; National Key R&D Program of China[2018YFE0183600]
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationNatural Science Foundation of China ; National Key R&D Program of China
WOS IDWOS:000773483000001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/52565
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Zhi; Gong, Xuzhong
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.North Minzu Univ, Sch Mat Sci & Engn, Yinchuan 750021, Ningxia, Peoples R China
5.North Minzu Univ, Ningxia Res Ctr Silicon Target & Silicon Carbon N, Yinchuan 750021, Ningxia, Peoples R China
6.Univ Hong Kong, Dept Chem, Pokfulam Rd, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Tong,Wu, Jiandong,Wang, Zhi,et al. Transfer of molecular oxygen and electrons improved by the regulation of C-N/C = O for highly efficient 2e-ORR[J]. CHEMICAL ENGINEERING JOURNAL,2022,433:11.
APA Zhang, Tong,Wu, Jiandong,Wang, Zhi,Wei, Zhen,Liu, Junhao,&Gong, Xuzhong.(2022).Transfer of molecular oxygen and electrons improved by the regulation of C-N/C = O for highly efficient 2e-ORR.CHEMICAL ENGINEERING JOURNAL,433,11.
MLA Zhang, Tong,et al."Transfer of molecular oxygen and electrons improved by the regulation of C-N/C = O for highly efficient 2e-ORR".CHEMICAL ENGINEERING JOURNAL 433(2022):11.
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