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Emerging investigator series: dispersed transition metals on a nitrogen-doped carbon nanoframework for environmental hydrogen peroxide detection
Li, ZH; Jiang, YH; Liu, CM; Wang, ZY; Cao, ZQ; Yuan, Y; Li, MJ; Wang, YL; Fang, DL; Guo, Z; Wang, DB; Zhang, GJ; Jiang, JK; Li, Zehui; Jiang, Yuheng; Liu, Chenming; Wang, Zhuoya; Cao, Zhiqin; Yuan, Yi; Li, Mingjie; Wang, Yaling; Fang, Daliang; Guo, Zhuang; Wang, Dongbin; Zhang, Guangjin; Jiang, Jingkun
2018
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
Volume5Issue:8Pages:1834
Abstract

Hydrogen peroxide (H2O2) is a key species in many environmental processes such as the electro-Fenton system to remove organic pollutants in wastewater treatment. Traditional methods for measuring H2O2 are often complex and time-consuming. Due to their low cost and high catalytic activity, transition metals (TM) can be used as high-performance electrochemical sensing materials for detecting H2O2. However, the aggregation of metal atoms will severely limit their catalytic efficiency and exposure area. In this study, we explored a method to disperse TM homogeneously on a zeolitic imidazolate framework-8 (ZIF-8) derived nitrogen-doped carbon (N/C) nanoframework and used it as the electrocatalyst for detecting H2O2 in an electro-Fenton system. Cu and Mn were used as the examples. Benefitting from the homogeneously dispersed TM, the synthesized nanoframework with a low content of TM exhibits superior electrocatalytic activity and an anti-interference ability in detecting H2O2. It has a wide linear range (0.0005-50 mM for 1% Cu-N/C and 0.0001-50 mM for 1% Mn-N/C) and a low detection limit (0.047 M for 1% Cu-N/C and 0.036 M for 1% Mn-N/C). Using the synthesized nanoframework, a system for continuously detecting the H2O2 concentration in an electro-Fenton system in situ was presented. The reported method to fabricate such nanomaterials with a higher catalytic efficiency of TM has implications in other applications such as environmental treatment, catalysis, and energy conversion.

KeywordOxygen Reduction Reaction Electrochemical Detection Organic Frameworks Porous Carbon Nanoparticles Performance Catalysts Graphene Glucose Fe
SubtypeArticle
DOI10.1039/c8en00498f
WOS IDWOS:000442263500005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26727
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Li, ZH,Jiang, YH,Liu, CM,et al. Emerging investigator series: dispersed transition metals on a nitrogen-doped carbon nanoframework for environmental hydrogen peroxide detection[J]. ENVIRONMENTAL SCIENCE-NANO,2018,5(8):1834.
APA Li, ZH.,Jiang, YH.,Liu, CM.,Wang, ZY.,Cao, ZQ.,...&Jiang, Jingkun.(2018).Emerging investigator series: dispersed transition metals on a nitrogen-doped carbon nanoframework for environmental hydrogen peroxide detection.ENVIRONMENTAL SCIENCE-NANO,5(8),1834.
MLA Li, ZH,et al."Emerging investigator series: dispersed transition metals on a nitrogen-doped carbon nanoframework for environmental hydrogen peroxide detection".ENVIRONMENTAL SCIENCE-NANO 5.8(2018):1834.
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