Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments

Hong Wang; Shixiong Min; Qiang Wang; Debao Li; Gilberto Casillas; Chun Ma; Yangyang Li; Zhixiong Liu; Lain-Jong Li; Jiayin Yuan; Markus Antonietti; Tao Wu

doi:10.1021/acsnano.7b01946

Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments

Hong Wang, Shixiong Min, Qiang Wang, Debao Li, Gilberto Casillas, Chun Ma, Yangyang Li, Zhixiong Liu, Lain-Jong Li, Jiayin Yuan, Markus Antonietti, Tao Wu

Research output: Contribution to journal › Article › peer-review

194 Scopus citations

Abstract

Self-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.

Original language	English (US)
Pages (from-to)	4358-4364
Number of pages	7
Journal	ACS Nano
Volume	11
Issue number	4
DOIs	https://doi.org/10.1021/acsnano.7b01946
State	Published - Apr 7 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: H.W. and T.W. thank the King Abdullah University of Science and Technology (KAUST) for financial support. S.M. acknowledges the financial support from the National Natural Science Foundation of China (21463001). J.Y. is grateful for financial support from the Max Planck Society, Germany, Clarkson University, USA, and the ERC (European Research Council) Starting Grant (Project Number 639720-NAPOLI).

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10.1021/acsnano.7b01946

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title = "Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments",

abstract = "Self-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.",

author = "Hong Wang and Shixiong Min and Qiang Wang and Debao Li and Gilberto Casillas and Chun Ma and Yangyang Li and Zhixiong Liu and Lain-Jong Li and Jiayin Yuan and Markus Antonietti and Tao Wu",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: H.W. and T.W. thank the King Abdullah University of Science and Technology (KAUST) for financial support. S.M. acknowledges the financial support from the National Natural Science Foundation of China (21463001). J.Y. is grateful for financial support from the Max Planck Society, Germany, Clarkson University, USA, and the ERC (European Research Council) Starting Grant (Project Number 639720-NAPOLI).",

year = "2017",

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doi = "10.1021/acsnano.7b01946",

language = "English (US)",

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T1 - Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments

AU - Wang, Hong

AU - Min, Shixiong

AU - Wang, Qiang

AU - Li, Debao

AU - Casillas, Gilberto

AU - Ma, Chun

AU - Li, Yangyang

AU - Liu, Zhixiong

AU - Li, Lain-Jong

AU - Yuan, Jiayin

AU - Antonietti, Markus

AU - Wu, Tao

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: H.W. and T.W. thank the King Abdullah University of Science and Technology (KAUST) for financial support. S.M. acknowledges the financial support from the National Natural Science Foundation of China (21463001). J.Y. is grateful for financial support from the Max Planck Society, Germany, Clarkson University, USA, and the ERC (European Research Council) Starting Grant (Project Number 639720-NAPOLI).

PY - 2017/4/7

Y1 - 2017/4/7

N2 - Self-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.

AB - Self-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.

UR - http://hdl.handle.net/10754/623871

UR - http://pubs.acs.org/doi/abs/10.1021/acsnano.7b01946

UR - http://www.scopus.com/inward/record.url?scp=85017915342&partnerID=8YFLogxK

U2 - 10.1021/acsnano.7b01946

DO - 10.1021/acsnano.7b01946

M3 - Article

C2 - 28362485

SN - 1936-0851

VL - 11

SP - 4358

EP - 4364

JO - ACS Nano

JF - ACS Nano

IS - 4

ER -

Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments

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