Catalytic effect of double transition metal sulfide NiCo2S4 on hydrogen storage properties of MgH2

Yangping Chen; Bolin Sun; Guoqing Zhang; Yongzhen Wang; Xinxi Li

doi:10.1016/j.apsusc.2023.158801

Catalytic effect of double transition metal sulfide NiCo₂S₄ on hydrogen storage properties of MgH₂

Yangping Chen, Bolin Sun, Guoqing Zhang, Yongzhen Wang, Xinxi Li^*

^*Corresponding author for this work

School of Mechanical Engineering

Guangdong University of Technology

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

13 Citations (Scopus)

Abstract

The limited practicality of magnesium hydride (MgH₂) is due to its remarkable thermodynamic steadiness and sluggish hydrogen (H₂) storage rate. In this study, NiCo₂S₄, a double transition metal sulfide, was synthesized and used to promote the kinetic properties of MgH₂. Starting release temperature of MgH₂- 10 NiCo₂S₄ composite is 203 °C. MgH₂-10 NiCo₂S₄ composite releases 6.11 wt% H₂ in 5 min at 325 °C, and absorbs 5.54 wt% H₂ in 1 min at 150 °C. Besides, the Arrhenius equation yields the activation energy (E_a) of MgH₂-10 NiCo₂S₄ composite to be 86.50 ± 2.00 kJ/mol. It is noteworthy that the MgH₂-10 NiCo₂S₄ composite generated MgS, Mg₂Ni and Mg₂Co in situ active species during the first dehydrogenation process. The synergistic effect between the MgS, Mg₂Ni/Mg₂NiH₄ and Mg₂Co/Mg₂CoH₅ multiphase catalytic systems was generated in the cycle, which observably boosted the kinetics of Mg/MgH₂.

Original language	English
Article number	158801
Journal	Applied Surface Science
Volume	645
DOIs	https://doi.org/10.1016/j.apsusc.2023.158801
Publication status	Published - 1 Feb 2024

Keywords

Catalyst
Hydrogen storage
MgH
NiCoS

Access to Document

10.1016/j.apsusc.2023.158801

Cite this

@article{a93b0f133d92440a83449bd933c78fa2,

title = "Catalytic effect of double transition metal sulfide NiCo2S4 on hydrogen storage properties of MgH2",

abstract = "The limited practicality of magnesium hydride (MgH2) is due to its remarkable thermodynamic steadiness and sluggish hydrogen (H2) storage rate. In this study, NiCo2S4, a double transition metal sulfide, was synthesized and used to promote the kinetic properties of MgH2. Starting release temperature of MgH2- 10 NiCo2S4 composite is 203 °C. MgH2-10 NiCo2S4 composite releases 6.11 wt% H2 in 5 min at 325 °C, and absorbs 5.54 wt% H2 in 1 min at 150 °C. Besides, the Arrhenius equation yields the activation energy (Ea) of MgH2-10 NiCo2S4 composite to be 86.50 ± 2.00 kJ/mol. It is noteworthy that the MgH2-10 NiCo2S4 composite generated MgS, Mg2Ni and Mg2Co in situ active species during the first dehydrogenation process. The synergistic effect between the MgS, Mg2Ni/Mg2NiH4 and Mg2Co/Mg2CoH5 multiphase catalytic systems was generated in the cycle, which observably boosted the kinetics of Mg/MgH2.",

keywords = "Catalyst, Hydrogen storage, MgH, NiCoS",

author = "Yangping Chen and Bolin Sun and Guoqing Zhang and Yongzhen Wang and Xinxi Li",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2024",

month = feb,

day = "1",

doi = "10.1016/j.apsusc.2023.158801",

language = "English",

volume = "645",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Catalytic effect of double transition metal sulfide NiCo2S4 on hydrogen storage properties of MgH2

AU - Chen, Yangping

AU - Sun, Bolin

AU - Zhang, Guoqing

AU - Wang, Yongzhen

AU - Li, Xinxi

PY - 2024/2/1

Y1 - 2024/2/1

N2 - The limited practicality of magnesium hydride (MgH2) is due to its remarkable thermodynamic steadiness and sluggish hydrogen (H2) storage rate. In this study, NiCo2S4, a double transition metal sulfide, was synthesized and used to promote the kinetic properties of MgH2. Starting release temperature of MgH2- 10 NiCo2S4 composite is 203 °C. MgH2-10 NiCo2S4 composite releases 6.11 wt% H2 in 5 min at 325 °C, and absorbs 5.54 wt% H2 in 1 min at 150 °C. Besides, the Arrhenius equation yields the activation energy (Ea) of MgH2-10 NiCo2S4 composite to be 86.50 ± 2.00 kJ/mol. It is noteworthy that the MgH2-10 NiCo2S4 composite generated MgS, Mg2Ni and Mg2Co in situ active species during the first dehydrogenation process. The synergistic effect between the MgS, Mg2Ni/Mg2NiH4 and Mg2Co/Mg2CoH5 multiphase catalytic systems was generated in the cycle, which observably boosted the kinetics of Mg/MgH2.

AB - The limited practicality of magnesium hydride (MgH2) is due to its remarkable thermodynamic steadiness and sluggish hydrogen (H2) storage rate. In this study, NiCo2S4, a double transition metal sulfide, was synthesized and used to promote the kinetic properties of MgH2. Starting release temperature of MgH2- 10 NiCo2S4 composite is 203 °C. MgH2-10 NiCo2S4 composite releases 6.11 wt% H2 in 5 min at 325 °C, and absorbs 5.54 wt% H2 in 1 min at 150 °C. Besides, the Arrhenius equation yields the activation energy (Ea) of MgH2-10 NiCo2S4 composite to be 86.50 ± 2.00 kJ/mol. It is noteworthy that the MgH2-10 NiCo2S4 composite generated MgS, Mg2Ni and Mg2Co in situ active species during the first dehydrogenation process. The synergistic effect between the MgS, Mg2Ni/Mg2NiH4 and Mg2Co/Mg2CoH5 multiphase catalytic systems was generated in the cycle, which observably boosted the kinetics of Mg/MgH2.

KW - Catalyst

KW - Hydrogen storage

KW - MgH

KW - NiCoS

UR - http://www.scopus.com/inward/record.url?scp=85176237180&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2023.158801

DO - 10.1016/j.apsusc.2023.158801

M3 - Article

AN - SCOPUS:85176237180

SN - 0169-4332

VL - 645

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 158801

ER -

Catalytic effect of double transition metal sulfide NiCo₂S₄ on hydrogen storage properties of MgH₂

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this