A bimetallic Co4Mo8 cluster built from Mo8 oxothiomolybdate capped by a Co4-thiacalix[4]arene unit: The observation of the Co-Mo synergistic effect for binder-free electrocatalysts

Min Zhang; Mengwei Chen; Yanfeng Bi; Liangliang Huang; Kun Zhou; Zhiping Zheng

doi:10.1039/c9ta01603a

A bimetallic Co₄Mo₈ cluster built from Mo₈ oxothiomolybdate capped by a Co₄-thiacalix[4]arene unit: The observation of the Co-Mo synergistic effect for binder-free electrocatalysts

Min Zhang, Mengwei Chen, Yanfeng Bi, Liangliang Huang, Kun Zhou, Zhiping Zheng

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

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Abstract

A new calixarene-supported bimetallic coordination cluster (NH₄){Co₄^II(TC4A)Cl[(Mo^VO₂)₂S(CH₃O)]₄} (+solvent) (abbr. Co₄Mo₈, H₄TC4A = p-tert-butylthiacalix[4]arene) was obtained by a solvothermal reaction. Co₄Mo₈ features a sulfur modified polyoxometalate Mo₈ cluster capped by a Co₄-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).

Original language	English (US)
Pages (from-to)	12893-12899
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	7
Issue number	20
DOIs	https://doi.org/10.1039/c9ta01603a
State	Published - 2019

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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A bimetallic Co₄Mo₈ cluster built from Mo₈ oxothiomolybdate capped by a Co₄-thiacalix[4]arene unit: The observation of the Co-Mo synergistic effect for binder-free electrocatalysts. / Zhang, Min; Chen, Mengwei; Bi, Yanfeng et al.
In: Journal of Materials Chemistry A, Vol. 7, No. 20, 2019, p. 12893-12899.

Research output: Contribution to journal › Article › peer-review

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title = "A bimetallic Co4Mo8 cluster built from Mo8 oxothiomolybdate capped by a Co4-thiacalix[4]arene unit: The observation of the Co-Mo synergistic effect for binder-free electrocatalysts",

abstract = "A new calixarene-supported bimetallic coordination cluster (NH4){Co4II(TC4A)Cl[(MoVO2)2S(CH3O)]4} (+solvent) (abbr. Co4Mo8, H4TC4A = p-tert-butylthiacalix[4]arene) was obtained by a solvothermal reaction. Co4Mo8 features a sulfur modified polyoxometalate Mo8 cluster capped by a Co4-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).",

author = "Min Zhang and Mengwei Chen and Yanfeng Bi and Liangliang Huang and Kun Zhou and Zhiping Zheng",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (No. 21301170), the Liaoning Revitalization Talents Program (No. XLYC1807059), the Educational Bureau of Liaoning Province for the Fundamental Research of Key Lab (No. L2017LZD002), the talent scientic research/ scientic research cultivation fund of LSHU (No. 2015XJJ-009/ 2016PY-003), and the Shenzhen Nobel Prize Scientists Laboratory Project (C17213101). Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

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AU - Zhang, Min

AU - Chen, Mengwei

AU - Bi, Yanfeng

AU - Huang, Liangliang

AU - Zhou, Kun

AU - Zheng, Zhiping

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (No. 21301170), the Liaoning Revitalization Talents Program (No. XLYC1807059), the Educational Bureau of Liaoning Province for the Fundamental Research of Key Lab (No. L2017LZD002), the talent scientic research/ scientic research cultivation fund of LSHU (No. 2015XJJ-009/ 2016PY-003), and the Shenzhen Nobel Prize Scientists Laboratory Project (C17213101). Publisher Copyright: © 2019 The Royal Society of Chemistry.

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Y1 - 2019

N2 - A new calixarene-supported bimetallic coordination cluster (NH4){Co4II(TC4A)Cl[(MoVO2)2S(CH3O)]4} (+solvent) (abbr. Co4Mo8, H4TC4A = p-tert-butylthiacalix[4]arene) was obtained by a solvothermal reaction. Co4Mo8 features a sulfur modified polyoxometalate Mo8 cluster capped by a Co4-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).

AB - A new calixarene-supported bimetallic coordination cluster (NH4){Co4II(TC4A)Cl[(MoVO2)2S(CH3O)]4} (+solvent) (abbr. Co4Mo8, H4TC4A = p-tert-butylthiacalix[4]arene) was obtained by a solvothermal reaction. Co4Mo8 features a sulfur modified polyoxometalate Mo8 cluster capped by a Co4-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).

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A bimetallic Co₄Mo₈ cluster built from Mo₈ oxothiomolybdate capped by a Co₄-thiacalix[4]arene unit: The observation of the Co-Mo synergistic effect for binder-free electrocatalysts

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