Titanium-doped copper oxide/ruthenium heterostructure constructed on Cu3Ti nanosheet for efficient hydrogen evolution reaction in alkaline media

Ma，Zhiyuan1; Wang，Qingbing1; Du，Yiyang1; Li，Zhaolong1; Dong，Junjie1; Qi，Zhengqiu1; Zhang，Xiaoyan1; Yu，Bo1; Guo，Bingshu1; Chen，Junchen1; Wang，Mingshan1; Jia，Yanlin2; Zhou，Liujiang3; Yi，Jiang4; Zhang，Jin1; Li，Xing1; Zhang，Jing1

2023-12-30

10.1016/j.apsusc.2023.158474

Applied Surface Science   影响因子和分区

0169-4332

Platinum group metals (Pt, Ru, Ir, etc.) are the most active catalysts for acidic hydrogen evolution reaction (HER), yet they cannot deliver satisfactory performance in alkaline media owing to the high energy barrier of water dissociation. Here, we report the outstanding alkaline HER performance of CuTi-supported Ti-doped CuO/Ru (CuTi@CTO/Ru) heterostructure catalysts, which were fabricated simply by an impregnation-heat treatment method. Density functional theory calculation results indicate that the energy barriers of both water dissociation and hydrogen desorption at CTO/Ru heterointerface are significantly reduced relative to Ru catalyst alone. As a result, the CuTi@CTO/Ru catalyst at the optimum Ru loading amount achieves a low overpotential of 34 mV at the current density of 10 mA cm and an ultra-low Tafel slope of 29 mV dec in 1 M KOH, outperforming the benchmark 20% Pt/C catalyst. This study provides new insight into the development of advanced alkaline HER catalysts.

Heterostructure Hydrogen evolution reaction Platinum group metals Water dissociation Water electrolysis

SCI ; EI

英语

其他

WOS:001080264100001

20233814751156

Binary alloys ; Catalysts ; Copper oxides ; Dissociation ; Energy barriers ; Platinum ; Potassium hydroxide ; Ruthenium ; Ruthenium alloys ; Titanium oxides

Precious Metals:547.1 ; Thermodynamics:641.1 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

MATERIALS SCIENCE

2-s2.0-85171459014

Scopus

1.School of New Energy and Materials,Southwest Petroleum University,Chengdu,610500,China
2.School of Materials Science and Engineering,Central South University,Changsha,410083,China
3.School of Physics,University of Electronic Science and Technology of China,Chengdu,610054,China
4.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Ma，Zhiyuan,Wang，Qingbing,Du，Yiyang,et al. Titanium-doped copper oxide/ruthenium heterostructure constructed on Cu3Ti nanosheet for efficient hydrogen evolution reaction in alkaline media[J]. Applied Surface Science,2023,641.

Ma，Zhiyuan.,Wang，Qingbing.,Du，Yiyang.,Li，Zhaolong.,Dong，Junjie.,...&Zhang，Jing.(2023).Titanium-doped copper oxide/ruthenium heterostructure constructed on Cu3Ti nanosheet for efficient hydrogen evolution reaction in alkaline media.Applied Surface Science,641.

Ma，Zhiyuan,et al."Titanium-doped copper oxide/ruthenium heterostructure constructed on Cu3Ti nanosheet for efficient hydrogen evolution reaction in alkaline media".Applied Surface Science 641(2023).