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Article

Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage

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
3,4,6,*
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.
Materials 2023, 16(12), 4219; https://doi.org/10.3390/ma16124219
Submission received: 9 May 2023 / Revised: 31 May 2023 / Accepted: 2 June 2023 / Published: 7 June 2023
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Abstract

The development of efficient hydrogen storage materials is crucial for advancing hydrogen-based energy systems. In this study, we prepared a highly innovative palladium-phosphide-modified P-doped graphene hydrogen storage material with a three-dimensional configuration (3D Pd3P0.95/P-rGO) using a hydrothermal method followed by calcination. This 3D network hindering the stacking of graphene sheets provided channels for hydrogen diffusion to improve the hydrogen adsorption kinetics. Importantly, the construction of the three-dimensional palladium-phosphide-modified P-doped graphene hydrogen storage material improved the hydrogen absorption kinetics and mass transfer process. Furthermore, while acknowledging the limitations of primitive graphene as a medium in hydrogen storage, this study addressed the need for improved graphene-based materials and highlighted the significance of our research in exploring three-dimensional configurations. The hydrogen absorption rate of the material increased obviously in the first 2 h compared with two-dimensional sheets of Pd3P/P-rGO. Meanwhile, the corresponding 3D Pd3P0.95/P-rGO-500 sample, which was calcinated at 500 °C, achieved the optimal hydrogen storage capacity of 3.79 wt% at 298 K/4 MPa. According to molecular dynamics, the structure was thermodynamically stable, and the calculated adsorption energy of a single H2 molecule was −0.59 eV/H2, which was in the ideal range of hydrogen ad/desorption. These findings pave the way for the development of efficient hydrogen storage systems and advance the progress of hydrogen-based energy technologies.
Keywords: palladium phosphide; P-doped graphene; hydrogen storage; hydrogen adsorption palladium phosphide; P-doped graphene; 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. Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage. Materials 2023, 16, 4219. https://doi.org/10.3390/ma16124219

AMA Style

Chen Y, Habibullah, Xia G, Jin C, Wang Y, Yan Y, Chen Y, Gong X, Lai Y, Wu C. Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage. Materials. 2023; 16(12):4219. https://doi.org/10.3390/ma16124219

Chicago/Turabian Style

Chen, Yiwen, Habibullah, Guanghui Xia, Chaonan Jin, Yao Wang, Yigang Yan, Yungui Chen, Xiufang Gong, Yuqiu Lai, and Chaoling Wu. 2023. "Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage" Materials 16, no. 12: 4219. https://doi.org/10.3390/ma16124219

APA Style

Chen, Y., Habibullah, Xia, G., Jin, C., Wang, Y., Yan, Y., Chen, Y., Gong, X., Lai, Y., & Wu, C. (2023). Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage. Materials, 16(12), 4219. https://doi.org/10.3390/ma16124219

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