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Phosphorus-doped onion-like carbon for CO2 electrochemical reduction: the decisive role of the bonding configuration of phosphorus
Liu, TianFu1,2; Ali, Sajjad1,3; Lian, Zan1,2; Si, ChaoWei1,2; Su, Dang Sheng1; Li, Bo1
Corresponding AuthorSu, Dang Sheng(dssu@imr.ac.cn) ; Li, Bo(boli@imr.ac.cn)
2018-11-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:41Pages:8
AbstractDoping with heteroatoms, such as nitrogen and boron, is crucial for the good performance of metal-free carbon cathode catalysts in the CO2 electrochemical reduction reaction (CERR). In this report, for the first time phosphorus is used to fabricate carbon catalysts and it is found that the bonding configuration of phosphorus has a key effect on the performance of the CERR. Two different phosphorus doped onion-like carbon (P-OLC) catalysts are synthesized with P-O bonding or P-C bonding as the major phosphorus bonding configuration, respectively. Compared to P-OLC with P-O bonding, P-OLC with P-C bonding exhibits a much better CERR performance, with a partial current density of 4.9 mA cm(-2), 81% faradaic efficiency, and excellent durability (27 h) at low potential (-0.90 V vs. SHE). Density functional theory calculations show that the binding energy of the key intermediate COOH* in P-C bonding is much higher than that of its counterpart in P-O bonding, which is beneficial for lowering the energy barrier of the rate-limiting step. The better reactivity of the P-C bonding site is also verified by aromaticity analysis. Moreover, ultraviolet photoelectron spectroscopy (UPS) and partial density of state (PDOS) analysis suggest that the electron transfer capability of P-C bonding is stronger than that of P-O bonding. The current study demonstrates that phosphorus doping is an effective strategy for fabricating carbon CERR catalysts and reveals the pivotal role of the phosphorus bonding configuration.
Funding OrganizationNSFC ; Institute of Metal Research ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase)
DOI10.1039/c8ta06649c
Indexed BySCI
Language英语
Funding ProjectNSFC[21573255] ; NSFC[51521091] ; Institute of Metal Research[Y3NBA211A1] ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase)[U1501501]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000448412700012
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130067
Collection中国科学院金属研究所
Corresponding AuthorSu, Dang Sheng; Li, Bo
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, TianFu,Ali, Sajjad,Lian, Zan,et al. Phosphorus-doped onion-like carbon for CO2 electrochemical reduction: the decisive role of the bonding configuration of phosphorus[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(41):8.
APA Liu, TianFu,Ali, Sajjad,Lian, Zan,Si, ChaoWei,Su, Dang Sheng,&Li, Bo.(2018).Phosphorus-doped onion-like carbon for CO2 electrochemical reduction: the decisive role of the bonding configuration of phosphorus.JOURNAL OF MATERIALS CHEMISTRY A,6(41),8.
MLA Liu, TianFu,et al."Phosphorus-doped onion-like carbon for CO2 electrochemical reduction: the decisive role of the bonding configuration of phosphorus".JOURNAL OF MATERIALS CHEMISTRY A 6.41(2018):8.
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