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Enhanced Stabilization and Effective Utilization of Atomic Hydrogen on Pd-In Nanoparticles in a Flow-through Electrode
Zhou, Yujun; Zhang, Gong; Ji, Qinghua; Zhang, Wei; Zhang, Junyu; Liu, Huijuan; Qu, Jiuhui
2019-10-01
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume53Issue:19Pages:11383-11390
AbstractSurface-adsorbed active species are intermediates with strong activities in heterogeneous catalytic reactions. Effective stabilization of these intermediates is crucial to improve the catalytic performance. Here, we demonstrated highly active bimetallic palladium- indium (Pd-In) nanoparticles (NPs) that can stabilize atomic H* on the surface and show efficient electrocatalytic reduction performance toward bromate. The optimal atomic ratio of Pd to In was investigated with the aim of efficient formation and strong stabilization of H*, thus facilitating the reduction and decontamination of carcinogenic bromate. Pd2In3 was the most active catalyst, with a high rate constant of 0.029 min(-1), whereas the rate constant for monometallic Pd NPs was only 0.009 min(-1). Density functional theory calculations suggest that Pd2In3 NPs decrease the work function and provide strong H* stabilization ability. By employing a flow-through electrode coated with Pd2In3 NPs to enhance the mass transport, the utilization of H* could be boosted and the reduction kinetics increased up to 7.5 times.
Department中国科学院饮用水科学与技术重点实验室
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43456
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Tsinghua Univ, Ctr Water & Ecol, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Yujun,Zhang, Gong,Ji, Qinghua,et al. Enhanced Stabilization and Effective Utilization of Atomic Hydrogen on Pd-In Nanoparticles in a Flow-through Electrode[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(19):11383-11390.
APA Zhou, Yujun.,Zhang, Gong.,Ji, Qinghua.,Zhang, Wei.,Zhang, Junyu.,...&Qu, Jiuhui.(2019).Enhanced Stabilization and Effective Utilization of Atomic Hydrogen on Pd-In Nanoparticles in a Flow-through Electrode.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(19),11383-11390.
MLA Zhou, Yujun,et al."Enhanced Stabilization and Effective Utilization of Atomic Hydrogen on Pd-In Nanoparticles in a Flow-through Electrode".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.19(2019):11383-11390.
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