Interfacial Engineering Promoting Electrosynthesis of Ammonia over Mo/Phosphotungstic Acid with High Performance
文献类型：期刊论文
| 作者 | Liao, Wanru2; Qi, Lu2; Wang, Yanlei1; Qin, Jingyu1; Liu, Guangyong1; Liang, Shijing2; He, Hongyan1; Jiang, Lilong2 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2021-03-27 |
| 页码 | 9 |
| 关键词 | ammonia synthesis electrocatalysis high faradaic efficiency interfacial engineering phosphotungstic acid‐ based catalyst |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.202009151 |
| 英文摘要 | Electrochemical nitrogen reduction reaction (eNRR) is recognized as a promising approach for ammonia synthesis, which is, however, impeded by the inert nitrogen and the unavoidable competing hydrogen evolution reaction (HER). Here, a Mo-PTA@CNT electrocatalyst in which Mo species are anchored on the fourfold hollow sites of phosphotungstic acid (PTA) and closely embedded in multi-walled carbon nanotubes (CNT) for immobilization is designed and synthesized. Interestingly, the catalyst presents a high ammonia yield rate of 51 +/- 1 mu g h(-1) mg(cat.)(-1) and an excellent Faradaic efficiency of 83 +/- 1% at -0.1 V versus RHE under ambient conditions. The concentrations of NH4+ are also quantitatively calculated by H-1 NMR spectra and ion chromatography. Isotopic labeling identifies that the N atom of the formed NH3 originates from N-2. The controlled experiments confirm a strong interaction between Mo-PTA and N-2 with an adsorption energy of 50.46 kJ mol(-1) and activation energy of 21.36 kJ mol(-1). More importantly, due to CNT's gas storage and hydrophobicity properties, there is a fourfold increase in N-2 content. The concentration of H2O is reduced by more than half at the interface of the electrode. Thus, the activity of eNRR can be significantly improved with ultrahigh electron selectivity. |
| 资助项目 | National Natural Science Foundation of China[22078063] ; National Natural Science Foundation of China[21825801] ; National Natural Science Foundation of China[21922813] ; Youth Innovation Promotion Association of CAS[2017066] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000633508900001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/48055]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liang, Shijing; He, Hongyan |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn,CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Wanru,Qi, Lu,Wang, Yanlei,et al. Interfacial Engineering Promoting Electrosynthesis of Ammonia over Mo/Phosphotungstic Acid with High Performance[J]. ADVANCED FUNCTIONAL MATERIALS,2021:9. |
| APA | Liao, Wanru.,Qi, Lu.,Wang, Yanlei.,Qin, Jingyu.,Liu, Guangyong.,...&Jiang, Lilong.(2021).Interfacial Engineering Promoting Electrosynthesis of Ammonia over Mo/Phosphotungstic Acid with High Performance.ADVANCED FUNCTIONAL MATERIALS,9. |
| MLA | Liao, Wanru,et al."Interfacial Engineering Promoting Electrosynthesis of Ammonia over Mo/Phosphotungstic Acid with High Performance".ADVANCED FUNCTIONAL MATERIALS (2021):9. |
入库方式： OAI收割
来源：过程工程研究所
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