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Inorganics
Volume 11
Issue 6
10.3390/inorganics11060251
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Article

Hydrogen Storage Properties of Economical Graphene Materials Modified by Non-Precious Metal Nickel and Low-Content Palladium

by
Yiwen Chen
1,2,†,
Habibullah
3,†,
Guanghui Xia
3,
Chaonan Jin
3,
Yao Wang
4,5,
Yigang Yan
4,5,6,
Yungui Chen
4,5,6,
Xiufang Gong
1,2,*,
Yuqiu Lai
1,2 and
Chaoling Wu
3,4,5,*
1
State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment, Deyang 618000, China
2
Dongfang Electric Corporation Dongfang Turbine Co., Ltd., Deyang 618000, China
3
College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China
4
Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610064, China
5
Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065, China
6
Technology Innovation Center of Hydrogen Storage-Transportation and Fueling Equipments for State Market Regulation, Chengdu 610100, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Inorganics 2023, 11(6), 251; https://doi.org/10.3390/inorganics11060251
Submission received: 18 May 2023 / Revised: 2 June 2023 / Accepted: 6 June 2023 / Published: 8 June 2023
(This article belongs to the Special Issue 10th Anniversary of Inorganics: Inorganic Materials)
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Abstract

Ni/Pd co-modified graphene hydrogen storage materials were successfully prepared by a solvothermal method using NiCl2·6H2O and Pd(OAc)2 and reduced graphene oxide (rGO). By adjusting the hydrothermal temperature, Pd–Ni is successfully alloyed, and the size of the obtained nanoparticles is uniform. The electronic structure of Pd was changed by alloying, and the center of the D-band moved down, which promoted the adsorption of hydrogen. The NiPd-rGO-180 sample, in which 180 represents the solvothermal temperature in centigrade (°C), has the highest hydrogen storage capacity of 2.65 wt% at a moderate condition (RT/4MPa). The excellent hydrogen storage performance benefits from the synergistic hydrogen spillover effect of Pd–Ni bimetal. The calculated hydrogen adsorption energies of Ni2Pd2-rGO are within the ideal range (−0.20 to −0.60 eV) of hydrogen ads/desorption; however, the introduction of substrate defects and the cluster orientation alter the hydrogen adsorption energy. This work provides an effective reference for the design and optimization of carbon-based hydrogen storage materials.
Keywords: NiPd; graphene; carbon-based hydrogen storage; hydrogen adsorption NiPd; graphene; carbon-based hydrogen storage; hydrogen adsorption
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MDPI and ACS Style

Chen, Y.; Habibullah; Xia, G.; Jin, C.; Wang, Y.; Yan, Y.; Chen, Y.; Gong, X.; Lai, Y.; Wu, C. Hydrogen Storage Properties of Economical Graphene Materials Modified by Non-Precious Metal Nickel and Low-Content Palladium. Inorganics 2023, 11, 251. https://doi.org/10.3390/inorganics11060251

AMA Style

Chen Y, Habibullah, Xia G, Jin C, Wang Y, Yan Y, Chen Y, Gong X, Lai Y, Wu C. Hydrogen Storage Properties of Economical Graphene Materials Modified by Non-Precious Metal Nickel and Low-Content Palladium. Inorganics. 2023; 11(6):251. https://doi.org/10.3390/inorganics11060251

Chicago/Turabian Style

Chen, Yiwen, Habibullah, Guanghui Xia, Chaonan Jin, Yao Wang, Yigang Yan, Yungui Chen, Xiufang Gong, Yuqiu Lai, and Chaoling Wu. 2023. "Hydrogen Storage Properties of Economical Graphene Materials Modified by Non-Precious Metal Nickel and Low-Content Palladium" Inorganics 11, no. 6: 251. https://doi.org/10.3390/inorganics11060251

APA Style

Chen, Y., Habibullah, Xia, G., Jin, C., Wang, Y., Yan, Y., Chen, Y., Gong, X., Lai, Y., & Wu, C. (2023). Hydrogen Storage Properties of Economical Graphene Materials Modified by Non-Precious Metal Nickel and Low-Content Palladium. Inorganics, 11(6), 251. https://doi.org/10.3390/inorganics11060251

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