A bimetallic Co4Mo8 cluster built from Mo-8 oxothiomolybdate capped by a Co-4-thiacalix[4]arene unit: the observation of the Co-Mo synergistic effect for binder-free electrocatalysts

Zhang, Min1; Chen, Mengwei1; Bi, Yanfeng1; Huang, Liangliang1; Zhou, Kun1; Zheng, Zhiping2,3

2019-05-28

10.1039/c9ta01603a

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

A new calixarene-supported bimetallic coordination cluster (NH4){Co-4(II)(TC4A)Cl[((MoO2)-O-V)(2)S(CH3O)](4)} (+solvent) (abbr. Co4Mo8, H(4)TC4A = p-tert-butylthiacalix[4]arene) was obtained by a solvothermal reaction. Co4Mo8 features a sulfur modified polyoxometalate Mo-8 cluster capped by a Co-4-TC4A unit. Co4Mo8 clusters directly fabricated on nickel foam (NF) were used as working electrodes, giving drastically improved electrocatalytic activities for the oxygen evolution reaction (OER) with an overpotential of 302.8 mV at 10.0 mA cm(-2) in basic media. Upon replacing Co in Co4Mo8 clusters with Ni or Zn, component controlled investigations indicated that the extraordinary OER performance originated from the Co-Mo synergistic effect. Furthermore, the deliberately incorporated sulfur atoms at the lower rim of Co4Mo8 clusters facilitated the adherence between the clusters and NF, resulting in a binder-free electrocatalyst with efficient and ultra-stable OER performance (366.8 mV at 40.0 mA cm(-2) for more than 150 hours).

SCI ; EI

英语

通讯

Shenzhen Nobel Prize Scientists Laboratory Project[C17213101]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000472219400052

ROYAL SOC CHEMISTRY

20192106964461

Aromatic hydrocarbons ; Binary alloys ; Binders ; Electrocatalysts ; Sulfur ; Vanadium dioxide

Zinc and Alloys:546.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1

Web of Science

1.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Fushun 113001, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518000, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518000, Guangdong, Peoples R China

Zhang, Min,Chen, Mengwei,Bi, Yanfeng,et al. A bimetallic Co4Mo8 cluster built from Mo-8 oxothiomolybdate capped by a Co-4-thiacalix[4]arene unit: the observation of the Co-Mo synergistic effect for binder-free electrocatalysts[J]. Journal of Materials Chemistry A,2019,7(20):12893-12899.

Zhang, Min,Chen, Mengwei,Bi, Yanfeng,Huang, Liangliang,Zhou, Kun,&Zheng, Zhiping.(2019).A bimetallic Co4Mo8 cluster built from Mo-8 oxothiomolybdate capped by a Co-4-thiacalix[4]arene unit: the observation of the Co-Mo synergistic effect for binder-free electrocatalysts.Journal of Materials Chemistry A,7(20),12893-12899.

Zhang, Min,et al."A bimetallic Co4Mo8 cluster built from Mo-8 oxothiomolybdate capped by a Co-4-thiacalix[4]arene unit: the observation of the Co-Mo synergistic effect for binder-free electrocatalysts".Journal of Materials Chemistry A 7.20(2019):12893-12899.