Microstructures and hydrogen evolution reaction performance of Ru-M (M=Cu, Ni and Nb) system by magnetron sputtering: The mixing enthalpy effect

Tian, Jinsen1; Zhang, Hao1; Qin, Junhao1; Lu, Wenfei2; Xu, Teng1; Wu, Jing3; Shen, Jun2

2024-10-15

10.1016/j.jallcom.2024.175464

JOURNAL OF ALLOYS AND COMPOUNDS   影响因子和分区

0925-8388

1873-4669

Nanostructured hydrogen evolution reaction (HER) electrocatalysts were prepared by magnetron sputtering. With increasing sputtering power of the Ru target, the catalytic performance of Cu-Ru system improved. Pure Ru sample shows the best performance, due to the larger electrochemical surface area, better hydrophily and smaller electron transfer impedance. No Cu-Ru interaction to improve the catalytic property was observed. This can be attributed to the formation of Cu and Ru nanograins rather than CuRu alloys, due to the repulsive force between Ru and Cu resulted by the positive mixing enthalpy. For Ni-Ru system with a mixing enthalpy close to 0, nanocrystalline NiRu alloys formed. Ru1Ni3 showed a high HER performance close to pure Ru due to the synergistic effect. Nb-Ru also shows synergistic interaction to improve the HER performance. Though the active area is smaller than pure Ru, Nb1Ru1 sample achieves an overpotential of 39 mV at a current density of 10 mA/cm2, lower than that of pure Ru. The main reason can be attributed to the formation of amorphous/crystalline heterojunction due to the negative mixing enthalpy. This promotes the charge transfer at the interface, leading to a smaller electrochemical impedance. The Nb1Ru1 sample also shows better stability for 100 h test with an increasing of only 6 mV of the overpotential at 10 mA/cm2.

Magnetron sputtering Hydrogen evolution reaction Cu/Ni/Nb-Ru Nanostructured catalyst Mixing enthalpy

SCI ; EI

英语

其他

Shenzhen Natural Science Fund (the Stable Support Plan B program)[20220804103149001] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515110988]

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:001267785900001

ELSEVIER SCIENCE SA

20242816672159

Charge transfer ; Copper alloys ; Electrocatalysts ; Heterojunctions ; Hydrogen ; Magnetron sputtering ; Mixing ; Nanocatalysts ; Nanocrystalline alloys ; Nanocrystals ; Nickel ; Ruthenium ; Ruthenium alloys

Copper Alloys:544.2 ; Precious Metals:547.1 ; Nickel:548.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Shenzhen Univ, Coll Mechatron & Controlling Engn, Shenzhen 518060, Peoples R China
2.Fujian Univ Technol, Sch Mat Sci & Engn, Fuzhou 350108, Peoples R China
3.Southern Univ Sci & Technol, Cryo EM Ctr, Shenzhen 518055, Peoples R China

Tian, Jinsen,Zhang, Hao,Qin, Junhao,et al. Microstructures and hydrogen evolution reaction performance of Ru-M (M=Cu, Ni and Nb) system by magnetron sputtering: The mixing enthalpy effect[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,1002.

Tian, Jinsen.,Zhang, Hao.,Qin, Junhao.,Lu, Wenfei.,Xu, Teng.,...&Shen, Jun.(2024).Microstructures and hydrogen evolution reaction performance of Ru-M (M=Cu, Ni and Nb) system by magnetron sputtering: The mixing enthalpy effect.JOURNAL OF ALLOYS AND COMPOUNDS,1002.

Tian, Jinsen,et al."Microstructures and hydrogen evolution reaction performance of Ru-M (M=Cu, Ni and Nb) system by magnetron sputtering: The mixing enthalpy effect".JOURNAL OF ALLOYS AND COMPOUNDS 1002(2024).