Facile Synthesis of Nanostructural High-Performance Cu-Pb Electrocatalysts for CO2 Reduction

Wang, Yutian1; Hu, Hanjun1; Sun, Yufan1; Tang, Yang2; Dai, Liming3,4; Hu, Qing5; Fisher, Adrian6; Yang, Xiao Jin1

2019-01-23

10.1002/admi.201801200

Advanced Materials Interfaces   影响因子和分区

2196-7350

Nanostructure and crystallinity of transition metals play an important role in catalyzing carbon dioxide electroreduction (CO2ER) where Cu is a typical electrocatalyst with a wide variety of products and Pb has a high overpotential for H-2 evolution and is selective toward formic acid. In this study, 3D hierarchical nanostructures of Cu-Pb catalyst are prepared by a two-step electrodepositing-annealing-electroreduction approach (EAE). Cu nanowires (Cu NWs) of 200-400 nm diameter are built on the surface of commercial nickel foam substrates through an EAE step. Then, Pb nanoparticles with diameter of 5-10 nm are uniformly created on the surface of Cu NWs by a second EAE step. The nanostructural Cu-Pb electrodes catalyze CO2ER at a current density of -9.35 mA cm(-2) (at -0.93 V vs reversible hydrogen electrode (RHE)). The H-2 evolution is suppressed by 35.6% and CO and HCOOH are enhanced by 29.6% and 9.2%, respectively, as compared with Cu NWs. The protocol proposed in this study provides a simple and straightforward approach for preparing high-performance, hierarchical nanostructures of Cu-Pb bimetal catalyst for CO2ER.

carbon dioxide electroreduction copper-lead bimetal catalyst hierarchical nanostructures

SCI ; EI

英语

其他

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000456673900009

WILEY

20184606078657

Bimetals ; Carbon dioxide ; Copper ; Electrocatalysts ; Electrodes ; Electrolytic reduction ; Formic acid ; Lead compounds ; Nanostructures

Web of Science

1.Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
2.Beijing Univ Chem Technol, Coll Appl Electrochem, Beijing 100029, Peoples R China
3.Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA
4.Beijing Univ Chem Technol, Coll Energy, Beijing 100029, Peoples R China
5.South Univ Sci & Technol China, Shenzhen 518055, Guangdong, Peoples R China
6.Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB2 1TN, England

Wang, Yutian,Hu, Hanjun,Sun, Yufan,et al. Facile Synthesis of Nanostructural High-Performance Cu-Pb Electrocatalysts for CO2 Reduction[J]. Advanced Materials Interfaces,2019,6(2).

Wang, Yutian.,Hu, Hanjun.,Sun, Yufan.,Tang, Yang.,Dai, Liming.,...&Yang, Xiao Jin.(2019).Facile Synthesis of Nanostructural High-Performance Cu-Pb Electrocatalysts for CO2 Reduction.Advanced Materials Interfaces,6(2).

Wang, Yutian,et al."Facile Synthesis of Nanostructural High-Performance Cu-Pb Electrocatalysts for CO2 Reduction".Advanced Materials Interfaces 6.2(2019).