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Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells

D. David Kirubakaran, C. Ravi Dhas, Sagar Jain, Luis F. Marchesi, Sudhagar Pitchaimuthu Orcid Logo

Applied Surface Science, Volume: 463, Pages: 994 - 1000

Swansea University Authors: Sagar Jain, Sudhagar Pitchaimuthu Orcid Logo

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DOI (Published version): 10.1016/j.apsusc.2018.08.178

Abstract

The copper zinc tin sulphide (CZTS) is a promising p-type earth abundant alloy that received profound attention as an electron driven dark catalyst in electrocatalytic reduction reactions. In particular, the photoelectrocatalysis based solar fuel cell encompass with inexpensive electrocatalyst (hydr...

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Published in: Applied Surface Science
ISSN: 0169-4332
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa43795
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In particular, the photoelectrocatalysis based solar fuel cell encompass with inexpensive electrocatalyst (hydrogen evolution reaction) is anticipated to support to reduce the overall system cost. However, demonstrating CZTS as Pt-free counter electrode in photoelectrocatalytic fuel cells is scarce. Because, achieving high electronic conductivity, favourable (1&#x202F;1&#x202F;2) crystalline structure towards high electrocatalytic property through low cost vacuum-free technique is remains challenge. In this report, we demonstrate p-type CZTS film fabrication at different processing temperature (250, 300, and 350&#x202F;&#xB0;C) using jet nebulizer spray (JNS) coating technique. The processing temperature play a key role on crystalline property, composition, and catalytic activity of CZTS. The x-ray diffraction and energy dispersive analysis results reveals that the CZTS film prepared 250&#x202F;&#xB0;C exhibit kesterite structure oriented in (1&#x202F;1&#x202F;2) direction. The electrocatalytic reduction property of as-synthesised CZTS electrodes in water reduction process is tested in aqueous 1&#x202F;M NaOH solution. Among the different temperature processed films, CZTS prepared at 250&#x202F;&#xB0;C result high electrocatalytic reduction activity &#x223C;-2.1&#x202F;mA&#x202F;cm&#x2212;2 at -0.44&#x202F;V vs Ag/AgCl. In addition, these film exhibits high electrical conductivity than that of other CZTS samples. Therefore, optimised CZTS 250&#x202F;&#xB0;C film is further examined in hydrogen peroxide (H2O2) reduction which result enhanced electrical current generation after adding the 1&#x202F;M of hydrogen peroxide in PBS electrolyte based electrochemical cell. This encouraged to apply as Pt-free counter electrode in H2O2 electrolyte based photoelectrocatalytic fuel cells. The PEC cells encompass with TiO2 nanowire photoelectrode, and CZTS-250&#x202F;&#xB0;C counter electrode showed feasible photocurrent generation compared to conventional Pt counter electrode. 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spelling 2018-11-12T15:42:31.7441411 v2 43795 2018-09-12 Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells 7073e179bb5b82db3e3efd3a8cd07139 Sagar Jain Sagar Jain true false 2fdbee02f4bfc5a1b174c8bd04afbd2b 0000-0001-9098-8806 Sudhagar Pitchaimuthu Sudhagar Pitchaimuthu true false 2018-09-12 EEN The copper zinc tin sulphide (CZTS) is a promising p-type earth abundant alloy that received profound attention as an electron driven dark catalyst in electrocatalytic reduction reactions. In particular, the photoelectrocatalysis based solar fuel cell encompass with inexpensive electrocatalyst (hydrogen evolution reaction) is anticipated to support to reduce the overall system cost. However, demonstrating CZTS as Pt-free counter electrode in photoelectrocatalytic fuel cells is scarce. Because, achieving high electronic conductivity, favourable (1 1 2) crystalline structure towards high electrocatalytic property through low cost vacuum-free technique is remains challenge. In this report, we demonstrate p-type CZTS film fabrication at different processing temperature (250, 300, and 350 °C) using jet nebulizer spray (JNS) coating technique. The processing temperature play a key role on crystalline property, composition, and catalytic activity of CZTS. The x-ray diffraction and energy dispersive analysis results reveals that the CZTS film prepared 250 °C exhibit kesterite structure oriented in (1 1 2) direction. The electrocatalytic reduction property of as-synthesised CZTS electrodes in water reduction process is tested in aqueous 1 M NaOH solution. Among the different temperature processed films, CZTS prepared at 250 °C result high electrocatalytic reduction activity ∼-2.1 mA cm−2 at -0.44 V vs Ag/AgCl. In addition, these film exhibits high electrical conductivity than that of other CZTS samples. Therefore, optimised CZTS 250 °C film is further examined in hydrogen peroxide (H2O2) reduction which result enhanced electrical current generation after adding the 1 M of hydrogen peroxide in PBS electrolyte based electrochemical cell. This encouraged to apply as Pt-free counter electrode in H2O2 electrolyte based photoelectrocatalytic fuel cells. The PEC cells encompass with TiO2 nanowire photoelectrode, and CZTS-250 °C counter electrode showed feasible photocurrent generation compared to conventional Pt counter electrode. This proof-of-concept type Pt-free PEC cells leads to open new paths in implementing wide-range of semiconductor based electrocatalyst to support in development of low-cost photoelectrocatalytic fuel cells. Journal Article Applied Surface Science 463 994 1000 0169-4332 CZTS, Electrocatalyst, Jet nebulizer spray technique, Water splitting, H2O2, Photoelectrocatalytic fuel cell 1 1 2019 2019-01-01 10.1016/j.apsusc.2018.08.178 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2018-11-12T15:42:31.7441411 2018-09-12T13:44:30.1161807 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised D. David Kirubakaran 1 C. Ravi Dhas 2 Sagar Jain 3 Luis F. Marchesi 4 Sudhagar Pitchaimuthu 0000-0001-9098-8806 5 0043795-18092018085532.pdf kirubakaran2018(3)v2.pdf 2018-09-18T08:55:32.2570000 Output 1224488 application/pdf Accepted Manuscript true 2019-08-23T00:00:00.0000000 true eng
title Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
spellingShingle Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
Sagar Jain
Sudhagar Pitchaimuthu
title_short Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
title_full Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
title_fullStr Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
title_full_unstemmed Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
title_sort Jet nebulizer-spray coated CZTS film as Pt-free electrocatalyst in photoelectrocatalytic fuel cells
author_id_str_mv 7073e179bb5b82db3e3efd3a8cd07139
2fdbee02f4bfc5a1b174c8bd04afbd2b
author_id_fullname_str_mv 7073e179bb5b82db3e3efd3a8cd07139_***_Sagar Jain
2fdbee02f4bfc5a1b174c8bd04afbd2b_***_Sudhagar Pitchaimuthu
author Sagar Jain
Sudhagar Pitchaimuthu
author2 D. David Kirubakaran
C. Ravi Dhas
Sagar Jain
Luis F. Marchesi
Sudhagar Pitchaimuthu
format Journal article
container_title Applied Surface Science
container_volume 463
container_start_page 994
publishDate 2019
institution Swansea University
issn 0169-4332
doi_str_mv 10.1016/j.apsusc.2018.08.178
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
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description The copper zinc tin sulphide (CZTS) is a promising p-type earth abundant alloy that received profound attention as an electron driven dark catalyst in electrocatalytic reduction reactions. In particular, the photoelectrocatalysis based solar fuel cell encompass with inexpensive electrocatalyst (hydrogen evolution reaction) is anticipated to support to reduce the overall system cost. However, demonstrating CZTS as Pt-free counter electrode in photoelectrocatalytic fuel cells is scarce. Because, achieving high electronic conductivity, favourable (1 1 2) crystalline structure towards high electrocatalytic property through low cost vacuum-free technique is remains challenge. In this report, we demonstrate p-type CZTS film fabrication at different processing temperature (250, 300, and 350 °C) using jet nebulizer spray (JNS) coating technique. The processing temperature play a key role on crystalline property, composition, and catalytic activity of CZTS. The x-ray diffraction and energy dispersive analysis results reveals that the CZTS film prepared 250 °C exhibit kesterite structure oriented in (1 1 2) direction. The electrocatalytic reduction property of as-synthesised CZTS electrodes in water reduction process is tested in aqueous 1 M NaOH solution. Among the different temperature processed films, CZTS prepared at 250 °C result high electrocatalytic reduction activity ∼-2.1 mA cm−2 at -0.44 V vs Ag/AgCl. In addition, these film exhibits high electrical conductivity than that of other CZTS samples. Therefore, optimised CZTS 250 °C film is further examined in hydrogen peroxide (H2O2) reduction which result enhanced electrical current generation after adding the 1 M of hydrogen peroxide in PBS electrolyte based electrochemical cell. This encouraged to apply as Pt-free counter electrode in H2O2 electrolyte based photoelectrocatalytic fuel cells. The PEC cells encompass with TiO2 nanowire photoelectrode, and CZTS-250 °C counter electrode showed feasible photocurrent generation compared to conventional Pt counter electrode. This proof-of-concept type Pt-free PEC cells leads to open new paths in implementing wide-range of semiconductor based electrocatalyst to support in development of low-cost photoelectrocatalytic fuel cells.
published_date 2019-01-01T03:55:08Z
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score 11.013575

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