Synergistic enhancement of electrocatalytic hydrogen evolution by CoS2 nanoparticle-modified P-doped Ti3C2Tx heterostructure in acidic and alkaline media

Mahider Asmare Tekalgne; Tuan Van Nguyen; Sung Hyun Hong; Quyet Van Le; Sangwoo Ryu; Sang Hyun Ahn; Soo Young Kim

doi:10.1016/j.fuel.2024.131976

Synergistic enhancement of electrocatalytic hydrogen evolution by CoS₂ nanoparticle-modified P-doped Ti₃C₂T_x heterostructure in acidic and alkaline media

Mahider Asmare Tekalgne
, Tuan Van Nguyen
, Sung Hyun Hong
, Quyet Van Le
, Sangwoo Ryu
, Sang Hyun Ahn^*
, Soo Young Kim

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

A facile method was developed to prepare a heterostructure of CoS₂ nanoparticles and P-doped Ti₃C₂T_x for a high-performance electrocatalytic hydrogen evolution reaction. However, the performance of Ti₃C₂T_x is poor owing to its high overpotential. Small CoS₂ nanoparticles grew well on the surface of the P-doped Ti₃C₂T_x, which further increased the active surface area for the adsorption of hydrogen ions. This hybrid structure exhibited high electrocatalytic activity with low overpotentials of 130 and 180 mV vs. RHE in acidic and alkaline electrolyte solutions, respectively, and excellent structural stability. The synergistic effect of the CoS₂ nanoparticles and phosphorus doped Ti₃C₂T_x considerably enhanced the hydrogen evolution process (HER). The findings of this study suggest that the Ti₃C₂T_x nanosheets have excellent prospects for developing highly active electrocatalysts for water splitting.

Original language	English
Article number	131976
Journal	Fuel
Volume	371
DOIs	https://doi.org/10.1016/j.fuel.2024.131976
Publication status	Published - 2024 Sept 1

Bibliographical note

Publisher Copyright:
© 2024 Elsevier Ltd

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Electrocatalytic H evolution
Hybrid structure
MXene

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

Access to Document

10.1016/j.fuel.2024.131976

Cite this

@article{da88cd066e894a5d9c19728eb81e778a,

title = "Synergistic enhancement of electrocatalytic hydrogen evolution by CoS2 nanoparticle-modified P-doped Ti3C2Tx heterostructure in acidic and alkaline media",

abstract = "A facile method was developed to prepare a heterostructure of CoS2 nanoparticles and P-doped Ti3C2Tx for a high-performance electrocatalytic hydrogen evolution reaction. However, the performance of Ti3C2Tx is poor owing to its high overpotential. Small CoS2 nanoparticles grew well on the surface of the P-doped Ti3C2Tx, which further increased the active surface area for the adsorption of hydrogen ions. This hybrid structure exhibited high electrocatalytic activity with low overpotentials of 130 and 180 mV vs. RHE in acidic and alkaline electrolyte solutions, respectively, and excellent structural stability. The synergistic effect of the CoS2 nanoparticles and phosphorus doped Ti3C2Tx considerably enhanced the hydrogen evolution process (HER). The findings of this study suggest that the Ti3C2Tx nanosheets have excellent prospects for developing highly active electrocatalysts for water splitting.",

keywords = "Electrocatalytic H evolution, Hybrid structure, MXene",

author = "Tekalgne, \{Mahider Asmare\} and Nguyen, \{Tuan Van\} and Hong, \{Sung Hyun\} and Le, \{Quyet Van\} and Sangwoo Ryu and Ahn, \{Sang Hyun\} and Kim, \{Soo Young\}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = sep,

day = "1",

doi = "10.1016/j.fuel.2024.131976",

language = "English",

volume = "371",

journal = "Fuel",

issn = "0016-2361",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Synergistic enhancement of electrocatalytic hydrogen evolution by CoS2 nanoparticle-modified P-doped Ti3C2Tx heterostructure in acidic and alkaline media

AU - Tekalgne, Mahider Asmare

AU - Nguyen, Tuan Van

AU - Hong, Sung Hyun

AU - Le, Quyet Van

AU - Ryu, Sangwoo

AU - Ahn, Sang Hyun

AU - Kim, Soo Young

PY - 2024/9/1

Y1 - 2024/9/1

N2 - A facile method was developed to prepare a heterostructure of CoS2 nanoparticles and P-doped Ti3C2Tx for a high-performance electrocatalytic hydrogen evolution reaction. However, the performance of Ti3C2Tx is poor owing to its high overpotential. Small CoS2 nanoparticles grew well on the surface of the P-doped Ti3C2Tx, which further increased the active surface area for the adsorption of hydrogen ions. This hybrid structure exhibited high electrocatalytic activity with low overpotentials of 130 and 180 mV vs. RHE in acidic and alkaline electrolyte solutions, respectively, and excellent structural stability. The synergistic effect of the CoS2 nanoparticles and phosphorus doped Ti3C2Tx considerably enhanced the hydrogen evolution process (HER). The findings of this study suggest that the Ti3C2Tx nanosheets have excellent prospects for developing highly active electrocatalysts for water splitting.

AB - A facile method was developed to prepare a heterostructure of CoS2 nanoparticles and P-doped Ti3C2Tx for a high-performance electrocatalytic hydrogen evolution reaction. However, the performance of Ti3C2Tx is poor owing to its high overpotential. Small CoS2 nanoparticles grew well on the surface of the P-doped Ti3C2Tx, which further increased the active surface area for the adsorption of hydrogen ions. This hybrid structure exhibited high electrocatalytic activity with low overpotentials of 130 and 180 mV vs. RHE in acidic and alkaline electrolyte solutions, respectively, and excellent structural stability. The synergistic effect of the CoS2 nanoparticles and phosphorus doped Ti3C2Tx considerably enhanced the hydrogen evolution process (HER). The findings of this study suggest that the Ti3C2Tx nanosheets have excellent prospects for developing highly active electrocatalysts for water splitting.

KW - Electrocatalytic H evolution

KW - Hybrid structure

KW - MXene

UR - https://www.scopus.com/pages/publications/85193461426

U2 - 10.1016/j.fuel.2024.131976

DO - 10.1016/j.fuel.2024.131976

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SN - 0016-2361

VL - 371

JO - Fuel

JF - Fuel

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