| 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 Publication | ADVANCED MATERIALS Impact Factor & Quartile |
| ISSN | 0935-9648 |
| Volume | 35Issue:19 |
| Abstract | Involving 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. |
| Keyword | Ammonia 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 |
| Publisher | John Wiley and Sons Inc |
| DOI | 10.1002/adma.202202952 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20231513875888 |
| EI Keywords | Binary alloys |
| EI Classification Number | 544.1 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 Type | Journal article (JA) |
| ESI Hot Paper | 2023-11 |
| ESI Hicited Paper | 2023-11 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/500643 |
| Collection | 化学化工学院 |
| Corresponding Author | Li, 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 Affilication | College of Chemistry and Chemical Engineering |
| Corresponding Author Affilication | College 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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