Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline

In this work, we present a systematic study on the electrochemical oxidation of C3 saturated alcohols (propanetriol, 1,2-propanediol, 1,3-propanediol, 1-propanol, and 2-propanol) on Co3O4 in alkaline. Co3O4 electrode was prepared by electrodeposition of Co(OH)2 on graphite paper followed with a calc...

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Main Authors: Sun, Shengnan, Sun, Libo, Xi, Shibo, Du, Yonghua, Anu Prathap, M.U., Wang, Zilong, Zhang, Qichun, Fisher, Adrian, Xu, Zhichuan Jason
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2017
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Online Access:https://hdl.handle.net/10356/85569
http://hdl.handle.net/10220/43750
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-855692021-01-08T06:46:11Z Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline Sun, Shengnan Sun, Libo Xi, Shibo Du, Yonghua Anu Prathap, M.U. Wang, Zilong Zhang, Qichun Fisher, Adrian Xu, Zhichuan Jason School of Materials Science & Engineering Energy Research Institute @ NTU (ERI@N) Co3O4 C3 Saturated Alcohol In this work, we present a systematic study on the electrochemical oxidation of C3 saturated alcohols (propanetriol, 1,2-propanediol, 1,3-propanediol, 1-propanol, and 2-propanol) on Co3O4 in alkaline. Co3O4 electrode was prepared by electrodeposition of Co(OH)2 on graphite paper followed with a calcination step. The electro-oxidation of C3 saturated alcohols were investigated by a combination of cyclic voltammetry, multi-step chronoamperometry, and electrochemical impedance spectroscopy techniques in KOH solution. The electro-oxidation studies at Co3O4 electrode followed an activity trend in the following order: propanetriol (GLY) > 1,2-propanediol (1,2-P) > 1,3-propanediol (1,3-P) > 1-propanol (1-P) > 2-propanol (2-P). The NMR analysis of the oxidized products showed that C-C bond cleavage occurred faster in alcohols having adjacent hydroxyl groups. X-ray absorption near-edge structure (XANES) spectroscopy study showed that there was no significant difference in Co oxidation state in the absence and the presence of glycerol. It was also found that the KOH concentration influenced electro-oxidation of those alcohols bearing secondary hydroxyl group (GLY, 1,2-P, and 2-P) more dramatically than that of those primary alcohols (1.3-P and 1-P). NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2017-09-18T03:08:44Z 2019-12-06T16:06:13Z 2017-09-18T03:08:44Z 2019-12-06T16:06:13Z 2017 Journal Article Sun, S., Sun, L., Xi, S., Du, Y., Anu Prathap, M. U., Wang, Z., et al. (2017). Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline. Electrochimica Acta, 228, 183-194. 0013-4686 https://hdl.handle.net/10356/85569 http://hdl.handle.net/10220/43750 10.1016/j.electacta.2017.01.086 en Electrochimica Acta © 2017 Elsevier Ltd.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Co3O4
C3 Saturated Alcohol
spellingShingle Co3O4
C3 Saturated Alcohol
Sun, Shengnan
Sun, Libo
Xi, Shibo
Du, Yonghua
Anu Prathap, M.U.
Wang, Zilong
Zhang, Qichun
Fisher, Adrian
Xu, Zhichuan Jason
Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
description In this work, we present a systematic study on the electrochemical oxidation of C3 saturated alcohols (propanetriol, 1,2-propanediol, 1,3-propanediol, 1-propanol, and 2-propanol) on Co3O4 in alkaline. Co3O4 electrode was prepared by electrodeposition of Co(OH)2 on graphite paper followed with a calcination step. The electro-oxidation of C3 saturated alcohols were investigated by a combination of cyclic voltammetry, multi-step chronoamperometry, and electrochemical impedance spectroscopy techniques in KOH solution. The electro-oxidation studies at Co3O4 electrode followed an activity trend in the following order: propanetriol (GLY) > 1,2-propanediol (1,2-P) > 1,3-propanediol (1,3-P) > 1-propanol (1-P) > 2-propanol (2-P). The NMR analysis of the oxidized products showed that C-C bond cleavage occurred faster in alcohols having adjacent hydroxyl groups. X-ray absorption near-edge structure (XANES) spectroscopy study showed that there was no significant difference in Co oxidation state in the absence and the presence of glycerol. It was also found that the KOH concentration influenced electro-oxidation of those alcohols bearing secondary hydroxyl group (GLY, 1,2-P, and 2-P) more dramatically than that of those primary alcohols (1.3-P and 1-P).
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Sun, Shengnan
Sun, Libo
Xi, Shibo
Du, Yonghua
Anu Prathap, M.U.
Wang, Zilong
Zhang, Qichun
Fisher, Adrian
Xu, Zhichuan Jason
format Article
author Sun, Shengnan
Sun, Libo
Xi, Shibo
Du, Yonghua
Anu Prathap, M.U.
Wang, Zilong
Zhang, Qichun
Fisher, Adrian
Xu, Zhichuan Jason
author_sort Sun, Shengnan
title Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
title_short Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
title_full Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
title_fullStr Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
title_full_unstemmed Electrochemical oxidation of C3 saturated alcohols on Co3O4 in alkaline
title_sort electrochemical oxidation of c3 saturated alcohols on co3o4 in alkaline
publishDate 2017
url https://hdl.handle.net/10356/85569
http://hdl.handle.net/10220/43750
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