Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids

Inspired by the high transition-metal-ion content in mussel glues, and the cross-linking and mechanical reinforcement effects of some transition-metal ions in mussel threads, high concentrations of nickel(II), cobalt(II), and manganese(II) ions have been purposely introduced into the reaction system...

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Main Authors: Yang, Liping, Kong, Junhua, Zhou, Dan, Ang, Jia Ming, Phua, Si Lei, Yee, Wu Aik, Liu, Hai, Huang, Yizhong, Lu, Xuehong
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/10356/105199
http://hdl.handle.net/10220/20462
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1051992020-06-01T10:26:43Z Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids Yang, Liping Kong, Junhua Zhou, Dan Ang, Jia Ming Phua, Si Lei Yee, Wu Aik Liu, Hai Huang, Yizhong Lu, Xuehong School of Materials Science & Engineering Temasek Laboratories DRNTU::Engineering::Materials::Nanostructured materials Inspired by the high transition-metal-ion content in mussel glues, and the cross-linking and mechanical reinforcement effects of some transition-metal ions in mussel threads, high concentrations of nickel(II), cobalt(II), and manganese(II) ions have been purposely introduced into the reaction system for dopamine polymerization. Kinetics studies were conducted for the Ni2+–dopamine system to investigate the polymerization mechanism. The results show that the Ni2+ ions could accelerate the assembly of dopamine oligomers in the polymerization process. Spectroscopic and electron microscopic studies reveal that the Ni2+ ions are chelated with polydopamine (PDA) units, forming homogeneous Ni2+–PDA complexes. This facile one-pot approach is utilized to construct transition-metal-ion–PDA complex thin coatings on graphene oxide, which can be carbonized to produce robust hybrid nanosheets with well-dispersed metallic nickel/metallic cobalt/manganese(II) oxide nanoparticles embedded in PDA-derived thin graphitic carbon layers. The nickel–graphene hybrid prepared by using this approach shows good catalytic properties and recyclability for the reduction of p-nitrophenol. 2014-09-08T08:17:59Z 2019-12-06T21:47:26Z 2014-09-08T08:17:59Z 2019-12-06T21:47:26Z 2014 2014 Journal Article Yang, L., Kong, J., Zhou, D., Ang, J. M., Phua, S. L., Yee, W. A., et al. (2014). Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids. Chemistry - A European journal, 20(25), 7776-7783. 0947-6539 https://hdl.handle.net/10356/105199 http://hdl.handle.net/10220/20462 10.1002/chem.201402241 en Chemistry - A European journal © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials::Nanostructured materials
spellingShingle DRNTU::Engineering::Materials::Nanostructured materials
Yang, Liping
Kong, Junhua
Zhou, Dan
Ang, Jia Ming
Phua, Si Lei
Yee, Wu Aik
Liu, Hai
Huang, Yizhong
Lu, Xuehong
Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
description Inspired by the high transition-metal-ion content in mussel glues, and the cross-linking and mechanical reinforcement effects of some transition-metal ions in mussel threads, high concentrations of nickel(II), cobalt(II), and manganese(II) ions have been purposely introduced into the reaction system for dopamine polymerization. Kinetics studies were conducted for the Ni2+–dopamine system to investigate the polymerization mechanism. The results show that the Ni2+ ions could accelerate the assembly of dopamine oligomers in the polymerization process. Spectroscopic and electron microscopic studies reveal that the Ni2+ ions are chelated with polydopamine (PDA) units, forming homogeneous Ni2+–PDA complexes. This facile one-pot approach is utilized to construct transition-metal-ion–PDA complex thin coatings on graphene oxide, which can be carbonized to produce robust hybrid nanosheets with well-dispersed metallic nickel/metallic cobalt/manganese(II) oxide nanoparticles embedded in PDA-derived thin graphitic carbon layers. The nickel–graphene hybrid prepared by using this approach shows good catalytic properties and recyclability for the reduction of p-nitrophenol.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Yang, Liping
Kong, Junhua
Zhou, Dan
Ang, Jia Ming
Phua, Si Lei
Yee, Wu Aik
Liu, Hai
Huang, Yizhong
Lu, Xuehong
format Article
author Yang, Liping
Kong, Junhua
Zhou, Dan
Ang, Jia Ming
Phua, Si Lei
Yee, Wu Aik
Liu, Hai
Huang, Yizhong
Lu, Xuehong
author_sort Yang, Liping
title Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
title_short Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
title_full Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
title_fullStr Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
title_full_unstemmed Transition-metal-ion-mediated polymerization of dopamine : Mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
title_sort transition-metal-ion-mediated polymerization of dopamine : mussel-inspired approach for the facile synthesis of robust transition-metal nanoparticle-graphene hybrids
publishDate 2014
url https://hdl.handle.net/10356/105199
http://hdl.handle.net/10220/20462
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