Mesoporous Iron-doped MoS2/CoMo2S4 Heterostructures through Organic-Metal Cooperative Interactions on Spherical Micelles for Electrochemical Water Splitting
- Authors
- Guo, Yanna; Tang, Jing; Henzie, Joel; Jiang, Bo; Xia, Wei; Chen, Tao; Bando, Yoshio; Kang, Yong-Mook; Hossain, Shahriar A.; Sugahara, Yoshiyuki; Yamauchi, Yusuke
- Issue Date
- 28-4월-2020
- Publisher
- AMER CHEMICAL SOC
- Keywords
- mesoporous; MoS2/CoMo2S4; cooperative interactions; Fe-doping; electrochemical water splitting
- Citation
- ACS NANO, v.14, no.4, pp.4141 - 4152
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS NANO
- Volume
- 14
- Number
- 4
- Start Page
- 4141
- End Page
- 4152
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/56267
- DOI
- 10.1021/acsnano.9b08904
- ISSN
- 1936-0851
- Abstract
- Mesoporous metal sulfide hybrid (meso-MoS2/CoMo2S4) materials via a soft-templating approach using diblock copolymer polystyrene-block-poly(acrylic acid) micelles are reported. The formation of the meso-MoS2/CoMo2S4 heterostructures is based on the sophisticated coassembly of dithiooxamide and metal precursors (i.e., Co2+, PMo12), which are subsequently annealed in nitrogen atmosphere to generate the mesoporous material. Decomposing the polymer leaves behind mesopores throughout the spherical MoS2/CoMo2S4 hybrid particles, generating numerous electrochemical active sites in a network of pores that enable faster charge transfer and mass/gas diffusion that enhance the electrocatalytic performance of MoS2/CoMo2S4. Doping the spherical meso-MoS2/CoMo2S4 heterostructures with iron improves the electronic properties of the hybrid meso-Fe-MoS2/CoMo2S4 material and consequently results in its superior electrochemical activities for both hydrogen evolution reaction and oxygen evolution reaction.
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