Boosting oxygen evolution in seawater media at large current density via boron-doped (Ni,Fe)OOH grown on Ni3N nanosheets

Xiao，Xin1,2,3; Wei，Yan1; Song，Shaowei2; McElhenny，Brian2; Zhang，Fanghao2; Jiang，Xingxing1; Zhang，Yang1; Chen，Shuo2; Wang，Mingkui1; Shen，Yan1; Ren，Zhifeng2

2024-07-15

10.1016/j.apcatb.2024.123871

Applied Catalysis B: Environmental   影响因子和分区

0926-3373

Exploiting highly efficient oxygen-evolving electrocatalysts is crucial for hydrogen production through seawater electrolysis. Here, a hierarchical structure of boron-doped (Ni,Fe)OOH grown on NiN nanosheets supported on nickel foam [denoted as B-(Ni,Fe)OOH/NiN/NF] is fabricated. Benefiting from the formation of abundant active sites and the reduced free energy barrier of the rate-determining step caused by B doping, the obtained B-(Ni,Fe)OOH/NiN/NF exhibits extraordinary electrocatalytic activity for oxygen evolution reaction, requiring overpotentials of only 283 mV and 309 mV to achieve a current density of 1000 mA cm in alkaline pure water and seawater media, respectively, as well as superior stability. When driven by a commercial Si solar cell, the electrolyzer using B-(Ni,Fe)OOH/NiN/NF as the anode and a previously reported Ru/(Fe,Ni)(OH)/NF as the cathode can achieve a high current of over 1000 mA in alkaline seawater media. This shows the great potential in applying a photovoltaic-driven electrolyzer toward large-scale hydrogen production in seawater electrolysis.

Hierarchical structure Photovoltaic-driven electrolyzer Seawater splitting Transition metal oxyhydroxides

SCI ; EI

英语

其他

20240915650127

Boron ; Electrocatalysts ; Electrodes ; Electrolysis ; Electrolytic cells ; Free energy ; Hydrogen production ; Iron compounds ; Nanosheets ; Nitrogen compounds ; Oxygen ; Seawater ; Silicon solar cells ; Transition metals

Seawater, Tides and Waves:471.4 ; Gas Fuels:522 ; Metallurgy and Metallography:531 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Solar Cells:702.3 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Solid State Physics:933

CHEMISTRY

2-s2.0-85185887830

Scopus

1.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,430074,China
2.Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH),University of Houston,Houston,77204,United States
3.Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM),SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL),Department of Chemistry,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China

Xiao，Xin,Wei，Yan,Song，Shaowei,et al. Boosting oxygen evolution in seawater media at large current density via boron-doped (Ni,Fe)OOH grown on Ni3N nanosheets[J]. Applied Catalysis B: Environmental,2024,349.

Xiao，Xin.,Wei，Yan.,Song，Shaowei.,McElhenny，Brian.,Zhang，Fanghao.,...&Ren，Zhifeng.(2024).Boosting oxygen evolution in seawater media at large current density via boron-doped (Ni,Fe)OOH grown on Ni3N nanosheets.Applied Catalysis B: Environmental,349.

Xiao，Xin,et al."Boosting oxygen evolution in seawater media at large current density via boron-doped (Ni,Fe)OOH grown on Ni3N nanosheets".Applied Catalysis B: Environmental 349(2024).