Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation

Wang, Junkai1,2; Huang, Zhenxia1,2; Lu, Lilin1; Jia, Quanli3; Huang, Liang1; Chang, Shuai1; Zhang, Mingyang1; Zhang, Zuotai4; Li, Sun4; He, Dongsheng5; Wu, Wenhao1; Zhang, Shaowei6; Toshima, Naoki7; Zhang, Haijun1

2020-02-21

10.1039/c9gc03477c

GREEN CHEMISTRY   影响因子和分区

1463-9262

1463-9270

Developing highly active single-atom catalysts is one of the most significant issues for future renewable energy technologies. Here we present a facile but effective and efficient strategy for synthesizing colloidal Co single-atom catalysts with excellent catalytic activity using a copolymer, poly(isobutylene-alt-maleic anhydride) (ISOBAM-104), as a stabilizing agent. The catalytic activity of the as-prepared colloidal single-atom catalyst for hydrogen generation from hydrolysis of KBH4 in an alkaline solution was as high at about 14 300 mL-H-2 min(-1) g-Co-1, which was even higher than that of its Pt, Pd or Rh counterpart. Such a high catalytic activity of the colloidal catalyst was attributable to the in situ formed and well-stabilized Co single-atoms whose existence was confirmed by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy. Moreover, quantum chemical calculations reveal that ISOBAM-104 has a higher binding energy with the Co catalyst than with the well-known conventional protective agents, including poly(N-vinyl-2-pyrrolidone), starch, carboxymethylcellulose sodium, polyvinyl alcohol, sodium polyacrylate and polyethylene glycol. In addition, the use of as-prepared Co catalysts resulted in a much lowered barrier for the dissociation reaction of BH4- than in the cases of using Pt, Pd and Rh counterpart catalysts.

SCI ; EI

英语

通讯

Open Foundation of the State Key Laboratory of Refractories and Metallurgy[G201904]

Chemistry ; Science & Technology - Other Topics

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology

WOS:000518034000022

ROYAL SOC CHEMISTRY

20201108277094

Alkalinity ; Atoms ; Binding energy ; High resolution transmission electron microscopy ; Hydrogen production ; Palladium ; Quantum chemistry ; Scanning electron microscopy ; Sodium ; Sols

Gas Fuels:522 ; Precious Metals:547.1 ; Alkali Metals:549.1 ; Optical Devices and Systems:741.3 ; Chemistry, General:801.1 ; Physical Chemistry:801.4 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3

CHEMISTRY

Web of Science

1.Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China
2.Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454000, Henan, Peoples R China
3.Zhengzhou Univ, Henan Key Lab High Temp Funct Ceram, 75 Daxue Rd, Zhengzhou 450052, Peoples R China
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Mat Characterizat & Preparat Ctr, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
6.Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England
7.Sanyoonoda City Univ, Dept Appl Chem, Yamaguchi 7560884, Japan

Wang, Junkai,Huang, Zhenxia,Lu, Lilin,et al. Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation[J]. GREEN CHEMISTRY,2020,22(4):1269-1274.

Wang, Junkai.,Huang, Zhenxia.,Lu, Lilin.,Jia, Quanli.,Huang, Liang.,...&Zhang, Haijun.(2020).Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation.GREEN CHEMISTRY,22(4),1269-1274.

Wang, Junkai,et al."Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation".GREEN CHEMISTRY 22.4(2020):1269-1274.