Molecular Architecture of Cobalt Porphyrin Multilayers on Reduced Graphene Oxide Sheets for High‐Performance Oxygen Reduction Reaction

Tang, Hongjie; Yin, Huajie; Wang, Jiangyan; Yang, Nailiang; Wang, Dan; Tang, Zhiyong

doi:10.1002/anie.201300711

Cited by 254 publications

(185 citation statements)

References 60 publications

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“…Recently many graphene-based hybrid materials with superior properties such as Au cluster/graphene50, metal oxide nanoparticle/graphene51 and Co-porphyrin multilayers/rGO52 have been investigated and used in oxygen reduction reaction and capacitive deionization. Therefore, the PANI-frGO containing unique properties of rGO and PANI could also act as specific supports to form hybrid nanocomposites.…”

Section: Discussionmentioning

confidence: 99%

Hierarchical Nanocomposites of Polyaniline Nanowire Arrays on Reduced Graphene Oxide Sheets for Supercapacitors

Wang

et al. 2013

Sci Rep

271

126

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Here we reported a novel route to synthesize a hierarchical nanocomposite (PANI-frGO) of polyaniline (PANI) nanowire arrays covalently bonded on reduced graphene oxide (rGO). In this strategy, nitrophenyl groups were initially grafted on rGO via C-C bond, and then reduced to aminophenyl to act as anchor sites for the growth of PANI arrays on rGO. The functionalized process was confirmed by atomic force microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The electrochemical properties of the PANI-frGO as supercapacitor materials were investigated. The PANI-frGO nanocomposites showed high capacitance of 590 F g−1 at 0.1 A g−1, and had no loss of capacitance after 200 cycles at 2 A g−1. The improved electrochemical performance suggests promising application of the PANI-frGO nanocomposites in high-performance supercapacitors.

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Section: Discussionmentioning

confidence: 99%

Hierarchical Nanocomposites of Polyaniline Nanowire Arrays on Reduced Graphene Oxide Sheets for Supercapacitors

Wang

et al. 2013

Sci Rep

271

126

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“…[15][16][17][18] It has been reported that iron or cobalt incorporated macrocycle exhibits high measurable levels of catalytic activity for ORR via an approximated 4-electron transfer or 2-electron pathway and the positive ORR onset potential by the experimental and theoretical methods. [19][20][21][22] Considering the ORR performance of metal macrocycle compounds is related with the highest occupied molecular orbital (HOMO) of metal macrocycle compounds. 15 For FePc, CoPc and CuPc, the HOMO is determined by the 3d orbital of their central atom, whereas the HOMO of the NiPc and ZnPc is localized on the phthalocyanine ring.…”

Section: Introductionmentioning

confidence: 99%

Systematic study of transition-metal (Fe, Co, Ni, Cu) phthalocyanines as electrocatalysts for oxygen reduction and their evaluation by DFT

et al. 2016

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“…Indeed, many previous studies confirm that binary/multi-doped carbon-based nanomaterials (S-N-C, P-N-C, B-N-C, M-N-C, etc.) can significantly improve the ORR performance of N-doped materials1112131415. Significant progress has been achieved in the synthesis of heteroatoms of doped carbon-based electrocatalysts.…”

mentioning

confidence: 99%

Facile synthesis of sewage sludge-derived in-situ multi-doped nanoporous carbon material for electrocatalytic oxygen reduction

Yuan

Dai

2016

Sci Rep

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Developing efficient, low-cost, and stable carbon-based catalysts for oxygen reduction reaction (ORR) to replace the expensive platinum-based electrocatalysts remains a major challenge that hamper the practical application of fuel cells. Here, we report that N, Fe, and S co-doped nanoporous carbon material, derived via a facile one-step pyrolysis of sewage sludge, the major byproduct of wastewater treatment, can serve as an effective electrocatalyst for ORR. Except for the comparable catalytic activity with commercial 20% Pt/C via a nearly four-electron transfer pathway in both alkaline and acid medium, the as-synthesized co-doped electrocatalyst also exhibits excellent methanol crossover resistance and outstanding long-term operation stability. The organic compounds in sewage sludge act as the carbon source and the in-situ N and S dopant in the fabrication, while the inorganic compounds serve as the in-built template and the in-situ Fe dopant. Our protocol demonstrates a new approach in the economic and eco-friendly benign reuse of sewage sludge, and also provides a straightforward route for synthesizing excellent carbon-based electrocatalysts as promising candidates for ORR directly from a type of waste/pollution.

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Molecular Architecture of Cobalt Porphyrin Multilayers on Reduced Graphene Oxide Sheets for High‐Performance Oxygen Reduction Reaction

Cited by 254 publications

References 60 publications

Hierarchical Nanocomposites of Polyaniline Nanowire Arrays on Reduced Graphene Oxide Sheets for Supercapacitors

Hierarchical Nanocomposites of Polyaniline Nanowire Arrays on Reduced Graphene Oxide Sheets for Supercapacitors

Systematic study of transition-metal (Fe, Co, Ni, Cu) phthalocyanines as electrocatalysts for oxygen reduction and their evaluation by DFT

Facile synthesis of sewage sludge-derived in-situ multi-doped nanoporous carbon material for electrocatalytic oxygen reduction

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