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Energy-Inexpensive Galvanic Deposition of BiOI on Electrodes and Its Conversion to 3D Porous BiVO4-Based Photoanode

  • Shivkanya Shinde
    Shivkanya Shinde
    Laboratory of Electrochemistry for Energy and Environment (L3E), Centre of Excellence in Green Energy Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
  • Pavel Majumdar
    Pavel Majumdar
    Laboratory of Electrochemistry for Energy and Environment (L3E), Centre of Excellence in Green Energy Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
  • Sayantan Sil
    Sayantan Sil
    Department of Physics, Jadavpur University, Jadavpur, Kolkata 700032, West Bengal, India
    More by Sayantan Sil
  • Markus Löffler
    Markus Löffler
    Dresden Center for Nanoanalysis (DCN), Centre for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Dresden 01069, Germany
  • Anamika Banerjee
    Anamika Banerjee
    Department of Chemistry, Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra 282005 Uttar Pradesh, India
  • Bernd Rellinghaus
    Bernd Rellinghaus
    Dresden Center for Nanoanalysis (DCN), Centre for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Dresden 01069, Germany
  • Sahab Dass
    Sahab Dass
    Department of Chemistry, Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra 282005 Uttar Pradesh, India
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  • Partha Pratim Ray
    Partha Pratim Ray
    Department of Physics, Jadavpur University, Jadavpur, Kolkata 700032, West Bengal, India
  • , and 
  • Snehangshu Patra*
    Snehangshu Patra
    Laboratory of Electrochemistry for Energy and Environment (L3E), Centre of Excellence in Green Energy Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
    *Email: [email protected], [email protected]
Cite this: J. Phys. Chem. C 2020, 124, 35, 18930–18945
Publication Date (Web):July 31, 2020
https://doi.org/10.1021/acs.jpcc.0c06059
Copyright © 2020 American Chemical Society
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Abstract

The present work focuses on energy-neutral, bias-free, scalable galvanic synthesis of highly crystalline thin films of BiOI on a fluorine-doped tin oxide (FTO) electrode (BiOI/FTO). Electrodes as developed were subjected to extensive characterization techniques viz. field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, atomic force microscopy, X-ray diffractometer, ultraviolet–visible spectroscopy, and other electrochemical techniques to observe physio(electro)chemical correlation between galvanic deposition and electrodeposition. In the next step, these BiOI/FTO electrodes were utilized to develop 3D porous BiVO4/FTO electrodes (termed as g-BiVO4) via a mild thermochemical process. The g-BiVO4/FTO electrode prepared this way exhibited exceptional photoelectrochemical performance for sulfite oxidation, achieving 1.2 mA cm–2 at a bias potential of 1.23 V versus reversible hydrogen electrode (RHE) with the early photocurrent onset (0.21 V vs RHE), as comparable to electrodeposited BiVO4 on a FTO electrode (e-BiVO4/FTO). We also fabricated Schottky barrier diode to shed light on the charge-transport mechanism of the g-BiVO4/FTO electrode. In order to improve water oxidation kinetics, we further photodeposited cobalt acetate (CoAc) on the g-BiVO4/FTO electrode. The CoAc-g-BiVO4/FTO electrode, on optimization, showed a photocurrent of 0.73 mA cm–2 at 1.23 V under the illumination of 20 mW cm–2 blue light-emitting diode with 36 h of sustained water catalytic performance. This demonstrates the importance of galvanic deposition process as an alternative to the high energy-demanding synthesis techniques such as electrodeposition, hydrothermal, and so forth.

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The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.jpcc.0c06059.

  • EDXS, AFM, detailed characterization of BiVO4-based SBD, charge-transport parameters, contact angle, photoelectrochemical stability, and optimization and long-term stability of CoAc-BiVO4/FTO electrode (PDF)

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Cited By


This article is cited by 3 publications.

  1. Xiang Yin, Xuetao Yang, Weixin Qiu, Keke Wang, Wenzhang Li, Yang Liu, Jie Li. Boosting the Photoelectrochemical Performance of BiVO4 Photoanodes by Modulating Bulk and Interfacial Charge Transfer. ACS Applied Electronic Materials 2021, 3 (4) , 1896-1903. https://doi.org/10.1021/acsaelm.1c00136
  2. Tianxiang Han, Lan Wu, Peng Wang, Tong Wang, Zhiqiang Yang, Kaige Tian, Jun Jin. Room chemical bath temperature deposition of Mn:FeOOH on BiVO4 photoanode to enhance water oxidation. Journal of Alloys and Compounds 2022, 894 , 162571. https://doi.org/10.1016/j.jallcom.2021.162571
  3. Aijian Wang, Xiaoliang Shen, Jinshen Ren, Qi Wang, Wei Zhao, Weihua Zhu, Danhong Shang. Regulating the type of cobalt porphyrins for synergistic promotion of photoelectrochemical water splitting of BiVO4. Dyes and Pigments 2021, 192 , 109468. https://doi.org/10.1016/j.dyepig.2021.109468