兰州大学机构库 >材料与能源学院
Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia
Gao, Wensheng1; Xie, Kefeng2; Xie, Jin1; Wang, Xiaomei1; Zhang, Hong3; Chen, Shengqi1; Wang, Hao1; Li, ZL(李泽龙)1; Li, C(李灿)1,4
2023-05-11
Source PublicationADVANCED MATERIALS   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0935-9648
Volume35Issue:19
AbstractInvolving eight electron transfer process and multiple intermediates of nitrate (NO3−) reduction reaction leads to a sluggish kinetic and low Faradaic efficiency, therefore, it is essential to get an insight into the reaction mechanism to develop highly efficient electrocatalyst. Herein, a series of reduced-graphene-oxide-supported RuCu alloy catalysts (RuxCux/rGO) are fabricated and used for the direct reduction of NO3− to NH3. It is found that the Ru1Cu10/rGO shows the ammonia formation rate of 0.38 mmol cm−2 h−1 (loading 1 mg cm−2) and the ammonia Faradaic efficiency of 98% under an ultralow potential of −0.05 V versus Reversible Hydrogen Electode (RHE), which is comparable to Ru catalyst. The highly efficient activity of Ru1Cu10/rGO can be attributed to the synergetic effect between Ru and Cu sites via a relay catalysis, in which the Cu shows the exclusively efficient activity for the reduction of NO3− to NO2− and Ru exhibits the superior activity for NO2− to NH3. In addition, the doping of Ru into Cu tunes the d-band center of alloy and effectively modulates the adsorption energy of the NO3− and NO2−, which promotes the direct reduction of NO3− to NH3. This synergetic electrocatalysis strategy opens a new avenue for developing highly efficient multifunctional catalysts. © 2023 Wiley-VCH GmbH.
KeywordAmmonia Copper Copper alloys Electrocatalysis Electrocatalysts Electron transport properties Graphene Nitrates Nitrogen oxides Reaction intermediates Ruthenium Ruthenium alloys % reductions Direct Reduction Electron transfer process Faradaic efficiencies Nitrate reduction Reduction reaction Relay catalysis Rucu alloy Sluggish kinetics Synergetic effect
PublisherJohn Wiley and Sons Inc
DOI10.1002/adma.202202952
Indexed ByEI
Language英语
EI Accession Number20231513875888
EI KeywordsBinary alloys
EI Classification Number544.1 Copper ; 544.2 Copper Alloys ; 547.1 Precious Metals ; 761 Nanotechnology ; 801.4.1 Electrochemistry ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds
Original Document TypeJournal article (JA)
ESI Hot Paper2023-11
ESI Hicited Paper2023-11 ; 2024-01 ; 2024-03
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/500643
Collection材料与能源学院
化学化工学院
Corresponding AuthorLi, Zelong; Li, Can
Affiliation
1.Key Laboratory of Advanced Catalysis, Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Gansu, Lanzhou; 730000, China;
2.School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou; 730070, China;
3.Electron Microscopy Centre of Lanzhou University, School of Materials and Energy, Lanzhou University, Gansu, Lanzhou; 730000, China;
4.State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Liaoning, Dalian; 116023, China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
First Signature AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Gao, Wensheng,Xie, Kefeng,Xie, Jin,et al. Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia[J]. ADVANCED MATERIALS,2023,35(19).
APA Gao, Wensheng.,Xie, Kefeng.,Xie, Jin.,Wang, Xiaomei.,Zhang, Hong.,...&Li, Can.(2023).Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia.ADVANCED MATERIALS,35(19).
MLA Gao, Wensheng,et al."Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia".ADVANCED MATERIALS 35.19(2023).
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