Ambient electrochemical nitrogen fixation with aqueous V2O5 nanodots in a fluidized electrocatalysis system

doi:10.1016/j.cej.2022.139494

	Ambient electrochemical nitrogen fixation with aqueous V2O5 nanodots in a fluidized electrocatalysis system
	Li, Wenyi 1,5; Ye, Yixing 1,5; Jin, Meng 1,5; Zhang, Shengbo 1,5; Lin, Chuhong 4; Sun, Chenghua 2,3; Zhang, Yunxia 1,5; Wang, Guozhong 1,5; Liang, Changhao 1,5; Zhang, Haimin 1,5
刊名	CHEMICAL ENGINEERING JOURNAL
	2023-01-15
卷号	452
关键词	Fluidized electrocatalysis system Nitrogen reduction reaction (NRR) Nitrogen oxidation reaction (NOR) Oxygen vacancy -rich V 2 O 5 nanodots Ammonia Nitrate
ISSN号	1385-8947
DOI	10.1016/j.cej.2022.139494
通讯作者	Lin, Chuhong(chuhong.lin@nut.edu.sg) ; Sun, Chenghua(chenghuasun@swin.edu.au) ; Liang, Changhao(chliang@issp.ac.cn) ; Zhang, Haimin(zhanghm@issp.ac.cn)
英文摘要	We report a fluidized electrocatalysis system using V2O5 nanodots (V2O5 NDs) electrocatalyst dispersed in aqueous electrolyte for efficiently ambient electrocatalytic nitrogen reduction reaction (NRR) and nitrogen oxidation reaction (NOR). Compared to the conventional catalyst-immobilized approach, the V2O5 NDs catalyst with such fluidized approach exhibits superior bifunctional activities toward NRR and NOR, affording a high NH3 yield of 575.3 mu g h-1 mg- 1 and a faradaic efficiency (FE) of 28.7 % for NRR and a high NO3- yield of 1388.0 mu g h-1 mg -1 and a FE of 12.6 % for NOR, respectively. The high bifunctional activities of V2O5 NDs are originated from the abundant oxygen vacancies as the active sites for the adsorption and activation of N2, affirmed by the DFT calculations. Furthermore, a theoretical model is built by the Monte Carlo simulation to confirm the important role of nanodots-incorporated fluidized approach in enhancement of mass transport and regeneration of active sites.
资助项目	Natural Science Foundation of China[52172106] ; Natural Science Foundation of China[52071313] ; HFIPS Director's Fund[YZJJKX202202]
WOS关键词	N-2 REDUCTION ; AMMONIA ; TEMPERATURE ; PRESSURE
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000870990000002
资助机构	Natural Science Foundation of China ; HFIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129807]
专题	中国科学院合肥物质科学研究院
通讯作者	Lin, Chuhong; Sun, Chenghua; Liang, Changhao; Zhang, Haimin
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, CAS Ctr Excellence Nanosci, Ctr Environm & Energy Nanomat,Key Lab Mat Phys,HFI, Hefei 230031, Peoples R China 2.Swinburne Univ Technol, Dept Chem & Biotechnol, Hawthorn, Vic 3122, Australia 3.Swinburne Univ Technol, Ctr Translat Atomaterials, Sch SCET, Hawthorn, Vic 3122, Australia 4.Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore 5.Univ Sci & Technol China, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenyi,Ye, Yixing,Jin, Meng,et al. Ambient electrochemical nitrogen fixation with aqueous V2O5 nanodots in a fluidized electrocatalysis system[J]. CHEMICAL ENGINEERING JOURNAL,2023,452.
APA	Li, Wenyi.,Ye, Yixing.,Jin, Meng.,Zhang, Shengbo.,Lin, Chuhong.,...&Zhang, Haimin.(2023).Ambient electrochemical nitrogen fixation with aqueous V2O5 nanodots in a fluidized electrocatalysis system.CHEMICAL ENGINEERING JOURNAL,452.
MLA	Li, Wenyi,et al."Ambient electrochemical nitrogen fixation with aqueous V2O5 nanodots in a fluidized electrocatalysis system".CHEMICAL ENGINEERING JOURNAL 452(2023).