Wide pH range electrocatalytic hydrogen evolution using molybdenum phosphide nanoparticles uniformly anchored on porous carbon cloth

Dong Yeop Lee; Hee Jo Song; Dong Wan Kim

doi:10.1016/j.ceramint.2020.12.065

Wide pH range electrocatalytic hydrogen evolution using molybdenum phosphide nanoparticles uniformly anchored on porous carbon cloth

Dong Yeop Lee, Hee Jo Song, Dong Wan Kim

School of Civil, Environmental and Architectural Engineering

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

6 Citations (Scopus)

Abstract

The development of efficient and inexpensive electrocatalysts is regarded as an urgent concern in electrochemical water-splitting system. Herein, we propose a novel strategy for the fabrication of molybdenum phosphide nanoparticles (MoP NPs) anchored on porous carbon cloth (MoP@PCC) as a noble metal–free electrocatalyst for hydrogen evolution reaction (HER). Benefiting from the thin and uniform coating of ultrafine molybdenum dioxide (MoO₂) NPs on PCC, less-aggregated MoP NPs can be formed on PCC after thermal phosphidation, resulting in an efficient performance for HER over a wide pH range. Particularly, MoP@PCC exhibited good electrocatalytic activities in alkaline and neutral solutions with low overpotentials of 122 and 160 mV at a current density of −10 mA cm⁻², respectively. Additionally, MoP@PCC exhibited long-term stability and durability with continuous 10,000 cyclic voltammetry (CV) cycles and chronopotentiometric operation over 50 h, both in alkaline and neutral solutions.

Original language	English
Pages (from-to)	9347-9353
Number of pages	7
Journal	Ceramics International
Volume	47
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2020.12.065
Publication status	Published - 2021 Apr 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea (NRF‐2016M3A7B4909318). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059). We thank the Korea Basic Science Institute for the technical support.

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea ( NRF‐2016M3A7B4909318 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( 2020R1A6A1A03045059 ). We thank the Korea Basic Science Institute for the technical support.

Publisher Copyright:
© 2020 Elsevier Ltd and Techna Group S.r.l.

Keywords

Electrocatalyst
Freestanding
Hydrogen evolution reaction
Molybdenum phosphide
Wide pH

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ceramint.2020.12.065

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title = "Wide pH range electrocatalytic hydrogen evolution using molybdenum phosphide nanoparticles uniformly anchored on porous carbon cloth",

abstract = "The development of efficient and inexpensive electrocatalysts is regarded as an urgent concern in electrochemical water-splitting system. Herein, we propose a novel strategy for the fabrication of molybdenum phosphide nanoparticles (MoP NPs) anchored on porous carbon cloth (MoP@PCC) as a noble metal–free electrocatalyst for hydrogen evolution reaction (HER). Benefiting from the thin and uniform coating of ultrafine molybdenum dioxide (MoO2) NPs on PCC, less-aggregated MoP NPs can be formed on PCC after thermal phosphidation, resulting in an efficient performance for HER over a wide pH range. Particularly, MoP@PCC exhibited good electrocatalytic activities in alkaline and neutral solutions with low overpotentials of 122 and 160 mV at a current density of −10 mA cm−2, respectively. Additionally, MoP@PCC exhibited long-term stability and durability with continuous 10,000 cyclic voltammetry (CV) cycles and chronopotentiometric operation over 50 h, both in alkaline and neutral solutions.",

keywords = "Electrocatalyst, Freestanding, Hydrogen evolution reaction, Molybdenum phosphide, Wide pH",

author = "Lee, {Dong Yeop} and Song, {Hee Jo} and Kim, {Dong Wan}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea (NRF‐2016M3A7B4909318). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059). We thank the Korea Basic Science Institute for the technical support. Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea ( NRF‐2016M3A7B4909318 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( 2020R1A6A1A03045059 ). We thank the Korea Basic Science Institute for the technical support. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

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N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea (NRF‐2016M3A7B4909318). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059). We thank the Korea Basic Science Institute for the technical support. Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning, South Korea ( NRF‐2016M3A7B4909318 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( 2020R1A6A1A03045059 ). We thank the Korea Basic Science Institute for the technical support. Publisher Copyright: © 2020 Elsevier Ltd and Techna Group S.r.l.

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N2 - The development of efficient and inexpensive electrocatalysts is regarded as an urgent concern in electrochemical water-splitting system. Herein, we propose a novel strategy for the fabrication of molybdenum phosphide nanoparticles (MoP NPs) anchored on porous carbon cloth (MoP@PCC) as a noble metal–free electrocatalyst for hydrogen evolution reaction (HER). Benefiting from the thin and uniform coating of ultrafine molybdenum dioxide (MoO2) NPs on PCC, less-aggregated MoP NPs can be formed on PCC after thermal phosphidation, resulting in an efficient performance for HER over a wide pH range. Particularly, MoP@PCC exhibited good electrocatalytic activities in alkaline and neutral solutions with low overpotentials of 122 and 160 mV at a current density of −10 mA cm−2, respectively. Additionally, MoP@PCC exhibited long-term stability and durability with continuous 10,000 cyclic voltammetry (CV) cycles and chronopotentiometric operation over 50 h, both in alkaline and neutral solutions.

AB - The development of efficient and inexpensive electrocatalysts is regarded as an urgent concern in electrochemical water-splitting system. Herein, we propose a novel strategy for the fabrication of molybdenum phosphide nanoparticles (MoP NPs) anchored on porous carbon cloth (MoP@PCC) as a noble metal–free electrocatalyst for hydrogen evolution reaction (HER). Benefiting from the thin and uniform coating of ultrafine molybdenum dioxide (MoO2) NPs on PCC, less-aggregated MoP NPs can be formed on PCC after thermal phosphidation, resulting in an efficient performance for HER over a wide pH range. Particularly, MoP@PCC exhibited good electrocatalytic activities in alkaline and neutral solutions with low overpotentials of 122 and 160 mV at a current density of −10 mA cm−2, respectively. Additionally, MoP@PCC exhibited long-term stability and durability with continuous 10,000 cyclic voltammetry (CV) cycles and chronopotentiometric operation over 50 h, both in alkaline and neutral solutions.

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Wide pH range electrocatalytic hydrogen evolution using molybdenum phosphide nanoparticles uniformly anchored on porous carbon cloth

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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