3D Printing of Multiscale Ti64-Based Lattice Electrocatalysts for Robust Oxygen Evolution Reaction

Guo, Binbin1; Kang, Jiahui1; Zeng, Tianbiao2; Qu, Hongqiao1; Yu, Shixiang1; Deng, Hui1; Bai, Jiaming1

2022-07-01

10.1002/advs.202201751

ADVANCED SCIENCE   影响因子和分区

2198-3844

Electrically assisted water splitting is an endurable strategy for hydrogen production, but the sluggish kinetics of oxygen evolution reaction (OER) extremely restrict the large-scale production of hydrogen. Developing highly efficient and non-precious catalytic materials is essential to accelerate the sluggish kinetics of OER. However, currently used catalyst supports, such as copper foam, suffer from inferior corrosion resistance and structural stability, resulting in the disabled functionality of 3D conductive networks. To this end, a novel 3D freestanding electrode with corrosion-resistant and robust Ti-6Al-4V titanium alloy lattice as the catalyst support is designed via a 3D printing technology of selective laser melting. After the coating of core-shell Cu(OH)2@CoNi carbonate hydroxides (CoNiCH) on the designed lattice, a unique micro/nano-sized hierarchical porous structure is formed, which endows the electrocatalyst with a promising electrocatalytic activity (a low overpotential of 355 mV at 30 mA cm(-2) and Tafel slope of 125.3 mV dec(-1)). Computational results indicate that the CoNiCH exhibits optimized electron transfer and the catalytic activity of the Ni site is higher than that of the Co site in the CoNiCH. Therefore, the integration of robust catalyst supports and highly active materials opens up an avenue for reliable and high-performance OER electrocatalysts.

3D Printing lattice oxygen evolution reaction selective laser melting Ti-6Al-4V titanium alloy

SCI ; EI

英语

第一 ; 通讯

Shenzhen Science and Technology Innovation Commission["GJHZ20200731095606021","20200925155544005","KQTD20190929172505711"] ; Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials[ZDSYS201703031748354] ; National Natural Science Foundation of China["52005243","52035009"]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000827805200001

WILEY

20223112455253

3D printers ; Catalyst activity ; Catalyst supports ; Copper compounds ; Copper corrosion ; Corrosion resistant alloys ; Electrocatalysts ; Hydrogen production ; Melting ; Oxygen ; Reaction kinetics ; Stability ; Titanium alloys

Gas Fuels:522 ; Metallurgy and Metallography:531 ; Metals Corrosion:539.1 ; Titanium and Alloys:542.3 ; Copper:544.1 ; Printing Equipment:745.1.1 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Wenzhou Univ, Sch Chem & Mat Engn, Wenzhou 325035, Peoples R China

Guo, Binbin,Kang, Jiahui,Zeng, Tianbiao,et al. 3D Printing of Multiscale Ti64-Based Lattice Electrocatalysts for Robust Oxygen Evolution Reaction[J]. ADVANCED SCIENCE,2022.

Guo, Binbin.,Kang, Jiahui.,Zeng, Tianbiao.,Qu, Hongqiao.,Yu, Shixiang.,...&Bai, Jiaming.(2022).3D Printing of Multiscale Ti64-Based Lattice Electrocatalysts for Robust Oxygen Evolution Reaction.ADVANCED SCIENCE.

Guo, Binbin,et al."3D Printing of Multiscale Ti64-Based Lattice Electrocatalysts for Robust Oxygen Evolution Reaction".ADVANCED SCIENCE (2022).