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Sustainable ammonia synthesis from air by the integration of plasma and electrocatalysis techniques

文献类型：期刊论文

作者Ding, Jun3,4; Li, Wenyi3,4; Chen, Qingqing2; Liu, Jiafang3,4; Tang, Shu3,4; Wang, Zhiwei1; Chen, Longwei1; Zhang, Haimin3,4
刊名INORGANIC CHEMISTRY FRONTIERS
出版日期2023-09-26
卷号10
ISSN号2052-1553
DOI10.1039/d3qi00915g
通讯作者Li, Wenyi(park0301@mail.ustc.edu.cn) ; Chen, Longwei(chenlw@ie.ah.cn) ; Zhang, Haimin(zhanghm@issp.ac.cn)
英文摘要In this work, we propose a strategy to realize indirect ammonia (NH3) harvesting from air by the integration of the non-thermal plasma (NTP) technique and electrocatalysis technique, which can activate air to form NOx- and further electrochemically reduce NOx- to NH3, respectively. To achieve high NOx- yields, a self-assembled tandem plasma system was constructed, in which the gliding arc discharge plus microwave discharge with pulse modulation tandem mode (GAD + MD-PM) was found to be preferable as it attained the largest NO2- yield of 8670.19 & mu;g mL-1 in a 1.5 M KOH absorption solution. Then, the plasma-treated KOH solution was directly used as the electrolyte for the subsequent electrochemical NO2- reduction reaction (eNO2-RR). The PtCu alloy with a 3D hexapod structure (PtCu HPs) was carefully designed as an effective eNO2-RR electrocatalyst, and it exhibited a remarkable NH3 yield rate of 166.02 & mu;g h-1 mg-1 and faradaic efficiency of 84.37% at 0 V (vs. RHE), which is almost 14.72 and 30.05 times higher than those of the PtCu nanoparticles (PtCu NPs) and Cu nanoparticles (Cu NPs), respectively. Such performance is mainly contributed by the enhanced intrinsic activity induced by the synergistic effect of the PtCu alloy and the increased number of accessible active sites due to the unique 3D hexapod structure. This work provides a potential strategy for sustainable nitrogen fixation toward NH3 production by combining various advanced techniques. A plasma-electrocatalysis integrated strategy, which decouples N2 fixation into two steps with NO2- as an intermediary, is reported to be effective for realizing high NH3 production.
WOS关键词REDUCTION ; CATALYSIS ; HYDROGEN ; NITRATE
资助项目This work was financially supported by CASHIPS Directoramp;apos;s Fund (Grant No. YZJJ2023QN30). A portion of this work was performed at the Steady High Magnetic Field Facilities, High Magnetic Field Laboratory, CAS.
WOS研究方向Chemistry
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:001069175000001
资助机构This work was financially supported by CASHIPS Directoramp;apos;s Fund (Grant No. YZJJ2023QN30). A portion of this work was performed at the Steady High Magnetic Field Facilities, High Magnetic Field Laboratory, CAS.
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/132561]  
专题中国科学院合肥物质科学研究院
通讯作者Li, Wenyi; Chen, Longwei; Zhang, Haimin
作者单位1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
2.Anhui Normal Univ, Coll Chem & Mat Sci, Lab Funct Mol Solids, Minist Educ, Wuhu 241002, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Ctr Environm & Energy Nanomat,Anhui Key Lab Nanom, CAS Ctr Excellence Nanosci,Key Lab Mat Phys,HFIPS, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Ding, Jun,Li, Wenyi,Chen, Qingqing,et al. Sustainable ammonia synthesis from air by the integration of plasma and electrocatalysis techniques[J]. INORGANIC CHEMISTRY FRONTIERS,2023,10.
APA Ding, Jun.,Li, Wenyi.,Chen, Qingqing.,Liu, Jiafang.,Tang, Shu.,...&Zhang, Haimin.(2023).Sustainable ammonia synthesis from air by the integration of plasma and electrocatalysis techniques.INORGANIC CHEMISTRY FRONTIERS,10.
MLA Ding, Jun,et al."Sustainable ammonia synthesis from air by the integration of plasma and electrocatalysis techniques".INORGANIC CHEMISTRY FRONTIERS 10(2023).

入库方式： OAI收割

来源：合肥物质科学研究院

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