Knowledge Management System Of Institute of process engineering,CAS
| Interfacial engineering of the NiSe2/FeSe2 p-p heterojunction for promoting oxygen evolution reaction and electrocatalytic urea oxidation | |
| Ni, Shan1,2; Qu, Hongnan1; Xu, Zihao1,2; Zhu, Xiangyang1,2; Xing, Huifang1,2; Wang, Li1; Yu, Jiemiao1; Liu, Huizhou1,2,3; Chen, Congmei4; Yang, Liangrong1,2,3 | |
| 2021-12-15 | |
| Source Publication | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| ISSN | 0926-3373 |
| Volume | 299Pages:10 |
| Abstract | Heterogeneous electrocatalysis usually involves the charge transfer between the surface of electrocatalysts and corresponding reactants. Thus, modulating the surface electron density of electrocatalysts is an effective strategy to boost the electrocatalytic activity of targeted reactions. Herein, the NiSe2/FeSe2 p-p heterojunction is constructed via a simple selenization method for both oxygen evolution reaction (OER) and urea oxidation reaction (UOR). The designed NiSe2/FeSe2 electrocatalyst exhibits a superior activity towards OER, which only requires a low overpotential of 256 mV to reach a current density of 10 mA cm(-2), and surpasses other selenides and even the state-of-the-art RuO2. Impressively, when employed as the UOR electrode, the NiSe2/FeSe2 heterojunction needs only 127 mV overpotential at 50 mA cm(-2), remarkably superior to other selenides and confirming the less energy consumption for UOR. The comprehensive analysis demonstrates that the well-designed built-in electric field at the heterointerface of NiSe2/FeSe2 p-p heterojunction due to the difference of energy levels can expedite the charge transfer and thus strengthen the conductivity of heterojunction electrocatalyst. Moreover, the self-driven electron transfer across the NiSe2/FeSe2 heterointerface can induce local charge redistribution at the interface region, which is beneficial for the adsorption of OH- and urea owing to the electrostatic interaction. Therefore, the designed NiSe2/FeSe2 p-p heterojunction with regulated electronic structure displays extraordinary electrocatalytic activity for both the OER and UOR. This study demonstrates a novel strategy to manipulate the surface/interface charge states of electrocatalysts for improving the catalytic activity of OER and UOR, and provides new guidelines for exploring other superior electrocatalysts. |
| Keyword | Oxygen evolution reaction Urea oxidation reaction p-p heterojunction Built-in electric field Local charge redistribution |
| DOI | 10.1016/j.apcatb.2021.120638 |
| Language | 英语 |
| WOS Keyword | EFFICIENT ELECTROCATALYST ; SPIN-STATE ; METAL ; NANOSPHERES ; CATALYSTS ; COMPOSITE |
| Funding Project | National Natural Science Foundation of China[21922814] ; National Natural Science Foundation of China[21961160745] ; National Natural Science Foundation of China[21921005] ; National Natural Science Foundation of China[22078333] ; National Natural Science Foundation of China[31961133019] ; Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences[Y202014] |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences |
| WOS ID | WOS:000703890500005 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50285 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Yang, Liangrong |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266061, Peoples R China 4.Natl Supercomp Ctr Shenzhen, Shenzhen 518055, Peoples R China |
| Recommended Citation GB/T 7714 | Ni, Shan,Qu, Hongnan,Xu, Zihao,et al. Interfacial engineering of the NiSe2/FeSe2 p-p heterojunction for promoting oxygen evolution reaction and electrocatalytic urea oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,299:10. |
| APA | Ni, Shan.,Qu, Hongnan.,Xu, Zihao.,Zhu, Xiangyang.,Xing, Huifang.,...&Yang, Liangrong.(2021).Interfacial engineering of the NiSe2/FeSe2 p-p heterojunction for promoting oxygen evolution reaction and electrocatalytic urea oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,299,10. |
| MLA | Ni, Shan,et al."Interfacial engineering of the NiSe2/FeSe2 p-p heterojunction for promoting oxygen evolution reaction and electrocatalytic urea oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 299(2021):10. |
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