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Hydrothermal Transformation of Dried Grass into Graphitic Carbon-Based High Performance Electrocatalyst for Oxygen Reduction Reaction
Alternative TitleSmall
Zhang, Haimin1; Wang, Yun1; Wang, Dan3; Li, Yibing1; Liu, Xiaolu1; Liu, Porun1; Yang, Huagui1; An, Taicheng4; Tang, Zhiyong5; Zhao, Huijun1,2
2014-08-27
Source PublicationSMALL
ISSN1613-6810
Volume10Issue:16Pages:3371-3378
AbstractIn this work, we present a low cost and environmentally benign hydrothermal method using dried grass as the sole starting material without any synthetic chemicals to directly produce high quality nitrogen-doped carbon nanodot/nanosheet aggregates (N-CNAs), achieving a high yield of 25.2%. The fabricated N-CNAs possess an N/C atomic ratio of 3.41%, consist of three typed of doped N at a ratio of 2.6 (pyridinic): 1.7 (pyrrolic): 1 (graphitic). The experimental results reveal that for oxygen reduction reaction (ORR), the performance of N-CNAs, in terms of electrocatalytic activity, stability and resistance to crossover effects, is better or comparable to the commercial Pt/C electrocatalyst. The theoretical studies further indicate that the doped pyridinic-N plays a key role for N-CNAs' excellent four-electron ORR electrocatalytic activity.; In this work, we present a low cost and environmentally benign hydrothermal method using dried grass as the sole starting material without any synthetic chemicals to directly produce high quality nitrogen-doped carbon nanodot/nanosheet aggregates (N-CNAs), achieving a high yield of 25.2%. The fabricated N-CNAs possess an N/C atomic ratio of 3.41%, consist of three typed of doped N at a ratio of 2.6 (pyridinic): 1.7 (pyrrolic): 1 (graphitic). The experimental results reveal that for oxygen reduction reaction (ORR), the performance of N-CNAs, in terms of electrocatalytic activity, stability and resistance to crossover effects, is better or comparable to the commercial Pt/C electrocatalyst. The theoretical studies further indicate that the doped pyridinic-N plays a key role for N-CNAs' excellent four-electron ORR electrocatalytic activity.
KeywordMetal-free Electrocatalysts Graphene Quantum Dots N-doped Graphene O-2 Reduction Fuel-cells Nitrogen Nanodots Biomass Carbonization Mechanism
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1002/smll.201400781
URL查看原文
Indexed BySCI
Language英语
WOS KeywordMETAL-FREE ELECTROCATALYSTS ; GRAPHENE QUANTUM DOTS ; N-DOPED GRAPHENE ; O-2 REDUCTION ; FUEL-CELLS ; NITROGEN ; NANODOTS ; BIOMASS ; CARBONIZATION ; MECHANISM
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000340939100020
Citation statistics
Cited Times:97[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11606
Collection研究所(批量导入)
Affiliation1.Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Qld 4222, Australia
2.Chinese Acad Sci, Inst Solid State Phys, Ctr Environm & Energy Nanomat, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
5.Natl Ctr Nanosci & Technol, Lab Nanomat, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Haimin,Wang, Yun,Wang, Dan,et al. Hydrothermal Transformation of Dried Grass into Graphitic Carbon-Based High Performance Electrocatalyst for Oxygen Reduction Reaction[J]. SMALL,2014,10(16):3371-3378.
APA Zhang, Haimin.,Wang, Yun.,Wang, Dan.,Li, Yibing.,Liu, Xiaolu.,...&Zhao, Huijun.(2014).Hydrothermal Transformation of Dried Grass into Graphitic Carbon-Based High Performance Electrocatalyst for Oxygen Reduction Reaction.SMALL,10(16),3371-3378.
MLA Zhang, Haimin,et al."Hydrothermal Transformation of Dried Grass into Graphitic Carbon-Based High Performance Electrocatalyst for Oxygen Reduction Reaction".SMALL 10.16(2014):3371-3378.
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