Defect-Rich Copper-doped Ruthenium Hollow Nanoparticles for Efficient Hydrogen Evolution Electrocatalysis in Alkaline Electrolyte

Liang，Jiashun1; Zhu，Lixing1; Chen，Shaoqing2; Priest，Cameron3; Liu，Xuan1; Wang，Hsing Lin2; Wu，Gang3; Li，Qing1

2020-09-15

10.1002/asia.202000695

Chemistry-An Asian Journal   影响因子和分区

1861-4728

1861-471X

It is of great importance to develop highly efficient and stable Pt-free catalysts for electrochemical hydrogen generation from water electrolysis. Here, monodisperse 7.5 nm copper-doped ruthenium hollow nanoparticles (NPs) with abundant defects and amorphous/crystalline hetero-phases were prepared and employed as efficient hydrogen evolution electrocatalysts in alkaline electrolyte. Specifically, these NPs only require a low overpotential of 25 mV to achieve a current density of 10 mA cm in 1.0 M KOH and show acceptable stability after 2000 potential cycles, which represents one of the best Ru-based electrocatalysts for hydrogen evolution. Mechanism analysis indicates that Cu incorporation can modify the electronic structure of Ru shell, thereby optimizing the energy barrier for water adsorption and dissociation processes or H adsorption/desorption. Cu doping paired with the defect-rich and highly open hollow structure of the NPs greatly enhances hydrogen evolution activity.

electrocatalysis Energy conversion hollow structure hydrogen evolution nanocrystal

SCI ; EI

英语

其他

National Nature Science Foundation of China[21972051]

Chemistry

Chemistry, Multidisciplinary

WOS:000561082400001

WILEY-V C H VERLAG GMBH

20203409085522

Electrocatalysts ; Hydrogen production ; Electrolysis ; Electronic structure ; Nanocrystals ; Nanoparticles ; Dissociation ; Nickel ; Copper ; Defects ; Electrocatalysis ; Electrolytes ; Energy conversion ; Potassium hydroxide

Gas Fuels:522 ; Energy Conversion Issues:525.5 ; Copper:544.1 ; Precious Metals:547.1 ; Nickel:548.1 ; Electric Batteries and Fuel Cells:702 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Solid State Physics:933 ; Crystalline Solids:933.1 ; Materials Science:951

2-s2.0-85089584896

Scopus

1.State Key Laboratory of Material Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,430074,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Chemical and Biological Engineering,University at Buffalo,The State University of New York,Buffalo,14260,United States

Liang，Jiashun,Zhu，Lixing,Chen，Shaoqing,et al. Defect-Rich Copper-doped Ruthenium Hollow Nanoparticles for Efficient Hydrogen Evolution Electrocatalysis in Alkaline Electrolyte[J]. Chemistry-An Asian Journal,2020,15(18):2868-2872.

Liang，Jiashun.,Zhu，Lixing.,Chen，Shaoqing.,Priest，Cameron.,Liu，Xuan.,...&Li，Qing.(2020).Defect-Rich Copper-doped Ruthenium Hollow Nanoparticles for Efficient Hydrogen Evolution Electrocatalysis in Alkaline Electrolyte.Chemistry-An Asian Journal,15(18),2868-2872.

Liang，Jiashun,et al."Defect-Rich Copper-doped Ruthenium Hollow Nanoparticles for Efficient Hydrogen Evolution Electrocatalysis in Alkaline Electrolyte".Chemistry-An Asian Journal 15.18(2020):2868-2872.