Cr-Zn Redox Battery with NiFe                         2                         O                         4                          as Catalyst for Enhanced Degradation of Cr(VI) Pollution

Ting Luo; Shaofeng Wang; Xianhua Hou; Fuming Chen; Xuwei Liu; Zongping Shao; Honglin Yan

doi:10.1021/acssuschemeng.8b05299

Cr-Zn Redox Battery with NiFe ₂ O ₄ as Catalyst for Enhanced Degradation of Cr(VI) Pollution

Ting Luo, Shaofeng Wang, Xianhua Hou, Fuming Chen, Xuwei Liu, Zongping Shao, Honglin Yan

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A novel Cr-Zn redox battery, which consists of K ₂ Cr ₂ O ₇ acid solution as cathode and metal zinc as anode, has been introduced to degrade Cr(VI) pollution and obtain electric energy. During the redox reaction, Cr(VI) is degraded into Cr(III) while electric energy is generated on external circuits. In order to increase the output energy density of this redox battery, NiFe ₂ O ₄ (NFO) is introduced as catalyst for degradation of Cr(VI). The electrochemistry performances are recorded. When NFO is applied as catalyst, the output energy reaches 2660 Wh kg ^-1 with a discharge plateau at 1.50 V during the Cr(VI) degradation process when the battery is discharged under a current of 1 mA. Moreover, the NFO catalyst helps to stable the output power density when the discharge current rises. Besides, the degradation ratio of Cr(VI) can achieve almost 100% after the redox battery is fully discharged. This result is superior to many of the current Cr(VI) removal/degradation methods.

Original language	English
Pages (from-to)	111-116
Number of pages	6
Journal	ACS Sustainable Chemistry and Engineering
Volume	7
Issue number	1
DOIs	https://doi.org/10.1021/acssuschemeng.8b05299
State	Published - 7 Jan 2019

Keywords

Electrocatalysis
Flow battery
Linear sweep voltammogram
Redox reaction
Spinel oxide

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acssuschemeng.8b05299

Cite this

Luo, T., Wang, S., Hou, X., Chen, F., Liu, X., Shao, Z., & Yan, H. (2019). Cr-Zn Redox Battery with NiFe ₂ O ₄ as Catalyst for Enhanced Degradation of Cr(VI) Pollution ACS Sustainable Chemistry and Engineering, 7(1), 111-116. https://doi.org/10.1021/acssuschemeng.8b05299

@article{6bd9ce0901d446919486b909c52850e1,

title = " Cr-Zn Redox Battery with NiFe 2 O 4 as Catalyst for Enhanced Degradation of Cr(VI) Pollution ",

abstract = " A novel Cr-Zn redox battery, which consists of K 2 Cr 2 O 7 acid solution as cathode and metal zinc as anode, has been introduced to degrade Cr(VI) pollution and obtain electric energy. During the redox reaction, Cr(VI) is degraded into Cr(III) while electric energy is generated on external circuits. In order to increase the output energy density of this redox battery, NiFe 2 O 4 (NFO) is introduced as catalyst for degradation of Cr(VI). The electrochemistry performances are recorded. When NFO is applied as catalyst, the output energy reaches 2660 Wh kg -1 with a discharge plateau at 1.50 V during the Cr(VI) degradation process when the battery is discharged under a current of 1 mA. Moreover, the NFO catalyst helps to stable the output power density when the discharge current rises. Besides, the degradation ratio of Cr(VI) can achieve almost 100% after the redox battery is fully discharged. This result is superior to many of the current Cr(VI) removal/degradation methods.",

keywords = "Electrocatalysis, Flow battery, Linear sweep voltammogram, Redox reaction, Spinel oxide",

author = "Ting Luo and Shaofeng Wang and Xianhua Hou and Fuming Chen and Xuwei Liu and Zongping Shao and Honglin Yan",

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Luo, T, Wang, S, Hou, X, Chen, F, Liu, X, Shao, Z & Yan, H 2019, ' Cr-Zn Redox Battery with NiFe ₂ O ₄ as Catalyst for Enhanced Degradation of Cr(VI) Pollution ', ACS Sustainable Chemistry and Engineering, vol. 7, no. 1, pp. 111-116. https://doi.org/10.1021/acssuschemeng.8b05299

Cr-Zn Redox Battery with NiFe ₂ O ₄ as Catalyst for Enhanced Degradation of Cr(VI) Pollution . / Luo, Ting; Wang, Shaofeng; Hou, Xianhua et al.
In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 1, 07.01.2019, p. 111-116.

Research output: Contribution to journal › Article › peer-review

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T1 - Cr-Zn Redox Battery with NiFe 2 O 4 as Catalyst for Enhanced Degradation of Cr(VI) Pollution

AU - Luo, Ting

AU - Wang, Shaofeng

AU - Hou, Xianhua

AU - Chen, Fuming

AU - Liu, Xuwei

AU - Shao, Zongping

AU - Yan, Honglin

PY - 2019/1/7

Y1 - 2019/1/7

N2 - A novel Cr-Zn redox battery, which consists of K 2 Cr 2 O 7 acid solution as cathode and metal zinc as anode, has been introduced to degrade Cr(VI) pollution and obtain electric energy. During the redox reaction, Cr(VI) is degraded into Cr(III) while electric energy is generated on external circuits. In order to increase the output energy density of this redox battery, NiFe 2 O 4 (NFO) is introduced as catalyst for degradation of Cr(VI). The electrochemistry performances are recorded. When NFO is applied as catalyst, the output energy reaches 2660 Wh kg -1 with a discharge plateau at 1.50 V during the Cr(VI) degradation process when the battery is discharged under a current of 1 mA. Moreover, the NFO catalyst helps to stable the output power density when the discharge current rises. Besides, the degradation ratio of Cr(VI) can achieve almost 100% after the redox battery is fully discharged. This result is superior to many of the current Cr(VI) removal/degradation methods.

AB - A novel Cr-Zn redox battery, which consists of K 2 Cr 2 O 7 acid solution as cathode and metal zinc as anode, has been introduced to degrade Cr(VI) pollution and obtain electric energy. During the redox reaction, Cr(VI) is degraded into Cr(III) while electric energy is generated on external circuits. In order to increase the output energy density of this redox battery, NiFe 2 O 4 (NFO) is introduced as catalyst for degradation of Cr(VI). The electrochemistry performances are recorded. When NFO is applied as catalyst, the output energy reaches 2660 Wh kg -1 with a discharge plateau at 1.50 V during the Cr(VI) degradation process when the battery is discharged under a current of 1 mA. Moreover, the NFO catalyst helps to stable the output power density when the discharge current rises. Besides, the degradation ratio of Cr(VI) can achieve almost 100% after the redox battery is fully discharged. This result is superior to many of the current Cr(VI) removal/degradation methods.

KW - Electrocatalysis

KW - Flow battery

KW - Linear sweep voltammogram

KW - Redox reaction

KW - Spinel oxide

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Luo T, Wang S, Hou X, Chen F, Liu X, Shao Z et al. Cr-Zn Redox Battery with NiFe ₂ O ₄ as Catalyst for Enhanced Degradation of Cr(VI) Pollution ACS Sustainable Chemistry and Engineering. 2019 Jan 7;7(1):111-116. doi: 10.1021/acssuschemeng.8b05299