Activating electrochemical catalytic activity of bio-palladium by hybridizing with carbon nanotube as "e-Bridge"

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Activating electrochemical catalytic activity of bio-palladium by hybridizing with carbon nanotube as "e-Bridge"
	Xu, Tiefu; Wang, Ai-Jie; Yang, Zhen-Ni; Zhang, Xu; Hou, Ya-Nan; Cheng, Hao-Yi
刊名	SCIENTIFIC REPORTS
	2017-11-29
卷号	7 期号:0 页码:-
英文摘要	Nano metal catalysts produced by bacteria has received increasing attention owing to its environmental friendly synthesis route. However, the formed metal nanoparticles are associated with poorly conductive cells and challenged to be electrochemically applied. In this study, Palladium (Pd) nanoparticles were synthesized by Shewanella oneidensis MR-1. We demonstrated the limitation of palladized cells (Pd-cells) serving as electro-catalysts can be relieved by hybridizing with the conductive carbon nanotubes (Pd-cells-CNTs hybrid). Compared to the Pd-cells, the electrochemical active surface area of Pd in Pd-cells-CNTs10 (the ratio of Pd/CNTs is 1/10 w/w) were dramatically increased by 68 times to 20.44 m(2).g(-1). A considerable enhancement of electrocatalytic activity was further confirmed for Pd-cells-CNTs10 as indicated by a 5-fold increase of steady state current density for nitrobenzene reduction at -0.55 V vs Ag/AgCl. These results indicate that the biogenetic palladium could has been an efficient electro-catalyst but just limited due to lacking an electron transport path (e(-) Bridge). This finding may also be helpful to guide the way to electrochemically use other biogenetic metal nano-materials.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39609]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Xu, Tiefu,Wang, Ai-Jie,Yang, Zhen-Ni,et al. Activating electrochemical catalytic activity of bio-palladium by hybridizing with carbon nanotube as "e-Bridge"[J]. SCIENTIFIC REPORTS,2017,7(0):-.
APA	Xu, Tiefu,Wang, Ai-Jie,Yang, Zhen-Ni,Zhang, Xu,Hou, Ya-Nan,&Cheng, Hao-Yi.(2017).Activating electrochemical catalytic activity of bio-palladium by hybridizing with carbon nanotube as "e-Bridge".SCIENTIFIC REPORTS,7(0),-.
MLA	Xu, Tiefu,et al."Activating electrochemical catalytic activity of bio-palladium by hybridizing with carbon nanotube as "e-Bridge"".SCIENTIFIC REPORTS 7.0(2017):-.