Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution

Feng Li; Xianglong Zhao; Javeed Mahmood; Mahmut Sait Okyay; Sun Min Jung; Ishfaq Ahmad; Seok Jin Kim; Gao Feng Han; Noejung Park; Jong Beom Baek

doi:10.1021/acsnano.7b04205

Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution

Feng Li, Xianglong Zhao, Javeed Mahmood, Mahmut Sait Okyay, Sun Min Jung, Ishfaq Ahmad, Seok Jin Kim, Gao Feng Han, Noejung Park, Jong Beom Baek

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

112 Scopus citations

Abstract

The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an MoxC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (MoxC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure was controllably fabricated using a facile-hard template strategy. As a result of the combined benefits of the Mo vacancies and structural advantages, including appropriate hydrogen binding energy, large exposed surface, robust IOL structure and fast mass/charge transport, the synthesized MoxC-IOL exhibited significantly enhanced HER electrocatalytic performance with good stability, with performance comparable or superior to Pt wire in both acidic and alkaline solutions.

Original language	English (US)
Pages (from-to)	7527-7533
Number of pages	7
Journal	ACS Nano
Volume	11
Issue number	7
DOIs	https://doi.org/10.1021/acsnano.7b04205
State	Published - Jul 25 2017
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
General Materials Science
General Engineering

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title = "Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution",

abstract = "The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an MoxC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (MoxC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure was controllably fabricated using a facile-hard template strategy. As a result of the combined benefits of the Mo vacancies and structural advantages, including appropriate hydrogen binding energy, large exposed surface, robust IOL structure and fast mass/charge transport, the synthesized MoxC-IOL exhibited significantly enhanced HER electrocatalytic performance with good stability, with performance comparable or superior to Pt wire in both acidic and alkaline solutions.",

author = "Feng Li and Xianglong Zhao and Javeed Mahmood and Okyay, {Mahmut Sait} and Jung, {Sun Min} and Ishfaq Ahmad and Kim, {Seok Jin} and Han, {Gao Feng} and Noejung Park and Baek, {Jong Beom}",

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doi = "10.1021/acsnano.7b04205",

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T1 - Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution

AU - Li, Feng

AU - Zhao, Xianglong

AU - Mahmood, Javeed

AU - Okyay, Mahmut Sait

AU - Jung, Sun Min

AU - Ahmad, Ishfaq

AU - Kim, Seok Jin

AU - Han, Gao Feng

AU - Park, Noejung

AU - Baek, Jong Beom

N1 - Generated from Scopus record by KAUST IRTS on 2023-09-23

PY - 2017/7/25

Y1 - 2017/7/25

N2 - The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an MoxC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (MoxC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure was controllably fabricated using a facile-hard template strategy. As a result of the combined benefits of the Mo vacancies and structural advantages, including appropriate hydrogen binding energy, large exposed surface, robust IOL structure and fast mass/charge transport, the synthesized MoxC-IOL exhibited significantly enhanced HER electrocatalytic performance with good stability, with performance comparable or superior to Pt wire in both acidic and alkaline solutions.

AB - The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an MoxC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (MoxC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure was controllably fabricated using a facile-hard template strategy. As a result of the combined benefits of the Mo vacancies and structural advantages, including appropriate hydrogen binding energy, large exposed surface, robust IOL structure and fast mass/charge transport, the synthesized MoxC-IOL exhibited significantly enhanced HER electrocatalytic performance with good stability, with performance comparable or superior to Pt wire in both acidic and alkaline solutions.

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JO - ACS Nano

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Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution

Abstract

ASJC Scopus subject areas

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