Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce<sup>3+</sup>/Ce<sup>4+</sup>

LI Zhaohua; CHU Youqun; MA Chun'an

doi:10.3969/j.issn.0438-1157.2013.01.038

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Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce³⁺/Ce⁴⁺

更新时间：2025-12-10

- Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce³⁺/Ce⁴⁺
- CIESC Journal Issue 1, Pages: 334-339(2013)
- 作者机构：
  
  浙江工业大学化学工程与材料学院,绿色化学合成技术国家重点实验室培育基地,浙江,杭州,310032
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.01.038
  CLC： Q15
- Online First：05 January 2013，
  
  Published：05 January 2013
- 稿件说明：
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LI Zhaohua, CHU Youqun, MA Chun'an. Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce³⁺/Ce⁴⁺[J]. CIESC Journal, 2013, (1): 334-339. DOI: 10.3969/j.issn.0438-1157.2013.01.038.
DOI：

LI Zhaohua, CHU Youqun, MA Chun'an. Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce³⁺/Ce⁴⁺[J]. CIESC Journal, 2013, (1): 334-339. DOI: 10.3969/j.issn.0438-1157.2013.01.038. DOI：

摘要

探讨了以Ce3+/Ce4+为媒质的1

4-萘醌间接电化学合成反应。考察了液相氧化、Ce3+电解氧化过程的影响因素

并进行了萘醌的间接电合成实验。结果发现

硫酸浓度、溶液温度对铈离子的氧化能力和电化学反应活性具有重要的影响;当温度为70℃、硫酸浓度为1.0 mol·L-1时

液相氧化反应的收率最高(85.8%)。Ce3+电解氧化的最优条件为:电流密度50 mA·cm-2、硫酸浓度1.0 mol·L-1、温度为50℃

其电流效率可达90.6%;间接电合成实验过程中萘醌的平均收率达85.7%

Ce3+电解氧化的平均电流效率达87.8%

并且电解过程具有良好的稳定性

表明该技术具有良好的产业化应用前景。

Abstract

Indirect electrochemical synthesis of 1

4-naphthoquinone was studied by using Ce3+/Ce4+ as mediator.The influence factors related to the processes of liquid phase oxidation of naphthalene and electrochemical oxidation of Ce3+ were investigated

and indirect electrochemical synthesis of 1

4-naphthoquinone was also conducted.The experimental results showed that concentrations of H2SO4 and solution temperature had significant influence on oxidative ability and electrochemical reactivity of cerium ions.The highest yield of 1

4-naphthoquinone (85.8%) could be obtained during liquid phase oxidation in 1.0 mol·L-1 H2SO4 at 70℃.The current efficiency of electrochemical oxidation of Ce3+ could reach up to 90.6% with current density of 50 mA·cm-2 in 1.0 mol·L-1 H2SO4 at 50℃.Excellent results were achieved during indirect electrochemical synthesis of 1

4-naphthoquinone.The tests were cycled for six times

and average yield of 1

4-naphthoquinone and current efficiency of electrochemical oxidation of Ce3+ were 85.7% and 87.8% respectively.These indicated that this technology could have a good prospect of commercialization.

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Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce3+/Ce4+

DOI：10.3969/j.issn.0438-1157.2013.01.038

摘要

Abstract

关键词

Keywords

references

Indirect electrochemical synthesis of 1,4-naphthoquinone mediated by Ce³⁺/Ce⁴⁺