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Title: Ultrafine Pt Nanoparticle-Decorated Pyrite-Type CoS 2 Nanosheet Arrays Coated on Carbon Cloth as a Bifunctional Electrode for Overall Water Splitting

Abstract

To improve the utilization efficiency of precious metals, metal-supported materials provide a direction for fabricating highly active and stable heterogeneous catalysts. Here, carbon cloth (CC)-supported Earth-abundant CoS2 nanosheet arrays (CoS2/CC) are presented as ideal substrates for ultrafine Pt deposition (Pt-CoS2/CC) to achieve remarkable performance toward the hydrogen and oxygen evolution reactions (HER/OER) in alkaline solutions. Notably, the Pt-CoS2/CC hybrid delivers an overpotential of 24 mV at 10 mA cm–2 and a mass activity of 3.89 A Ptmg–1, which is 4.7 times higher than that of commercial Pt/C, at an overpotential of 130 mV for catalyzing the HER. An alkali-electrolyzer using Pt-CoS2/CC as a bifunctional electrode enables a water-splitting current density of 10 mA cm–2 at a low voltage of 1.55 V and can sustain for more than 20 h, which is superior to that of the state-of-the-art Pt/C+RuO2 catalyst. Further experimental and theoretical simulation studies demonstrate that strong electronic interaction between Pt and CoS2 synergistically optimize hydrogen adsorption/desorption behaviors and facilitate the in situ generation of OER active species, enhancing the overall water-splitting performance. This research highlights the regulation of interfacial and electronic synergy in pursuit of highly efficient and durable supported catalysts for hydrogen and oxygen electrocatalytic applications.

Authors:
 [1];  [1];  [1];  [2];  [3]; ORCiD logo [1];  [1]
  1. Tianjin Univ. (China)
  2. Shandong Univ., Jinan (China)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1526674
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 24; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; active sites; nanocomposite; Pt nanoparticles; pyrite CoS2; water splitting

Citation Formats

Han, Xiaopeng, Wu, Xiaoyu, Deng, Yida, Liu, Jian, Lu, Jun, Zhong, Cheng, and Hu, Wenbin. Ultrafine Pt Nanoparticle-Decorated Pyrite-Type CoS 2 Nanosheet Arrays Coated on Carbon Cloth as a Bifunctional Electrode for Overall Water Splitting. United States: N. p., 2018. Web. doi:10.1002/aenm.201800935.
Han, Xiaopeng, Wu, Xiaoyu, Deng, Yida, Liu, Jian, Lu, Jun, Zhong, Cheng, & Hu, Wenbin. Ultrafine Pt Nanoparticle-Decorated Pyrite-Type CoS 2 Nanosheet Arrays Coated on Carbon Cloth as a Bifunctional Electrode for Overall Water Splitting. United States. doi:https://doi.org/10.1002/aenm.201800935
Han, Xiaopeng, Wu, Xiaoyu, Deng, Yida, Liu, Jian, Lu, Jun, Zhong, Cheng, and Hu, Wenbin. Mon . "Ultrafine Pt Nanoparticle-Decorated Pyrite-Type CoS 2 Nanosheet Arrays Coated on Carbon Cloth as a Bifunctional Electrode for Overall Water Splitting". United States. doi:https://doi.org/10.1002/aenm.201800935. https://www.osti.gov/servlets/purl/1526674.
@article{osti_1526674,
title = {Ultrafine Pt Nanoparticle-Decorated Pyrite-Type CoS 2 Nanosheet Arrays Coated on Carbon Cloth as a Bifunctional Electrode for Overall Water Splitting},
author = {Han, Xiaopeng and Wu, Xiaoyu and Deng, Yida and Liu, Jian and Lu, Jun and Zhong, Cheng and Hu, Wenbin},
abstractNote = {To improve the utilization efficiency of precious metals, metal-supported materials provide a direction for fabricating highly active and stable heterogeneous catalysts. Here, carbon cloth (CC)-supported Earth-abundant CoS2 nanosheet arrays (CoS2/CC) are presented as ideal substrates for ultrafine Pt deposition (Pt-CoS2/CC) to achieve remarkable performance toward the hydrogen and oxygen evolution reactions (HER/OER) in alkaline solutions. Notably, the Pt-CoS2/CC hybrid delivers an overpotential of 24 mV at 10 mA cm–2 and a mass activity of 3.89 A Ptmg–1, which is 4.7 times higher than that of commercial Pt/C, at an overpotential of 130 mV for catalyzing the HER. An alkali-electrolyzer using Pt-CoS2/CC as a bifunctional electrode enables a water-splitting current density of 10 mA cm–2 at a low voltage of 1.55 V and can sustain for more than 20 h, which is superior to that of the state-of-the-art Pt/C+RuO2 catalyst. Further experimental and theoretical simulation studies demonstrate that strong electronic interaction between Pt and CoS2 synergistically optimize hydrogen adsorption/desorption behaviors and facilitate the in situ generation of OER active species, enhancing the overall water-splitting performance. This research highlights the regulation of interfacial and electronic synergy in pursuit of highly efficient and durable supported catalysts for hydrogen and oxygen electrocatalytic applications.},
doi = {10.1002/aenm.201800935},
journal = {Advanced Energy Materials},
number = 24,
volume = 8,
place = {United States},
year = {2018},
month = {7}
}

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    • DOI: 10.1039/c8qi01230j

    Nanoscale hetero-interfaces between metals and metal compounds for electrocatalytic applications
    journal, January 2019

    • Kwon, Taehyun; Jun, Minki; Joo, Jinwhan
    • Journal of Materials Chemistry A, Vol. 7, Issue 10
    • DOI: 10.1039/c8ta09494b

    Ultrafine cobalt nitride nanoparticles supported on carbon nanotubes as efficient electrocatalyst for rechargeable zinc–air batteries
    journal, January 2019

    • Xu, Ruizhi; Luo, Fang; Li, Min
    • Chemical Communications, Vol. 55, Issue 89
    • DOI: 10.1039/c9cc06359e

    The chemically reduced CuO–Co 3 O 4 composite as a highly efficient electrocatalyst for oxygen evolution reaction in alkaline media
    journal, January 2019

    • Aftab, Umair; Tahira, Aneela; Mazzaro, Raffaello
    • Catalysis Science & Technology, Vol. 9, Issue 22
    • DOI: 10.1039/c9cy01754b

    Optimization of the facet structure of cobalt oxide catalysts for enhanced hydrogen evolution reaction
    journal, January 2020

    • Wu, Minghong; Ke, Shuqiang; Chen, Wenqian
    • Catalysis Science & Technology, Vol. 10, Issue 4
    • DOI: 10.1039/c9cy01900f

    Fully reversible lithium storage of tin oxide enabled by self-doping and partial amorphization
    journal, January 2019

    • Pang, Yuepeng; Wang, Jing; Yang, Junhe
    • Nanoscale, Vol. 11, Issue 27
    • DOI: 10.1039/c9nr03445e

    Electrodepositing Pd on NiFe layered double hydroxide for improved water electrolysis
    journal, January 2019

    • Guo, Jinxue; Sun, Jikang; Sun, Yanfang
    • Materials Chemistry Frontiers, Vol. 3, Issue 5
    • DOI: 10.1039/c9qm00052f

    A new metal–organic open framework enabling facile synthesis of carbon encapsulated transition metal phosphide/sulfide nanoparticle electrocatalysts
    journal, January 2019

    • Weng, Baicheng; Wang, Xiaoming; Grice, Corey R.
    • Journal of Materials Chemistry A, Vol. 7, Issue 12
    • DOI: 10.1039/c9ta00404a

    Nanosheets assembled into nickel sulfide nanospheres with enriched Ni 3+ active sites for efficient water-splitting and zinc–air batteries
    journal, January 2019

    • Shi, Xiangkai; Ling, Xiaofei; Li, Lanlan
    • Journal of Materials Chemistry A, Vol. 7, Issue 41
    • DOI: 10.1039/c9ta03819a

    Recent advances and challenges in divalent and multivalent metal electrodes for metal–air batteries
    journal, January 2019

    • Sun, Yangting; Liu, Xiaorui; Jiang, Yiming
    • Journal of Materials Chemistry A, Vol. 7, Issue 31
    • DOI: 10.1039/c9ta05094a

    Fe nanodot-decorated MoS 2 nanosheets on carbon cloth: an efficient and flexible electrode for ambient ammonia synthesis
    journal, January 2019

    • Zhao, Xinhui; Zhang, Xu; Xue, Zhimin
    • Journal of Materials Chemistry A, Vol. 7, Issue 48
    • DOI: 10.1039/c9ta09264a

    Nature of Carbon Materials Used as Nondoped Electrodes for Oxygen Reduction Reaction and Supercapacitor Applications
    journal, January 2019

    • Zhang, Hui-Juan; Geng, Jing; Yao, Sunwu
    • Journal of The Electrochemical Society, Vol. 166, Issue 2
    • DOI: 10.1149/2.0601816jes