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Mg-MOF-74 Derived Defective Framework for Hydrogen Storage at Above-Ambient Temperature Assisted by Pt Catalyst.
Liu, Shiyuan; Zhang, Yue; Zhu, Fangzhou; Liu, Jieyuan; Wan, Xin; Liu, Ruonan; Liu, Xiaofang; Shang, Jia-Xiang; Yu, Ronghai; Feng, Qiang; Wang, Zili; Shui, Jianglan.
Afiliación
  • Liu S; Tianmushan Laboratory, Hangzhou, 310023, China.
  • Zhang Y; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Zhu F; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, 999077, China.
  • Liu J; School of Reliability and Systems Engineering, Beihang University, Beijing, 100191, China.
  • Wan X; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Liu R; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Liu X; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Shang JX; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Yu R; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Feng Q; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Wang Z; School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
  • Shui J; School of Reliability and Systems Engineering, Beihang University, Beijing, 100191, China.
Adv Sci (Weinh) ; 11(18): e2401868, 2024 May.
Article en En | MEDLINE | ID: mdl-38460160
ABSTRACT
Metal-organic frameworks (MOFs) are promising candidates for room-temperature hydrogen storage materials after modification, thanks to their ability to chemisorb hydrogen. However, the hydrogen adsorption strength of these modified MOFs remains insufficient to meet the capacity and safety requirements of hydrogen storage systems. To address this challenge, a highly defective framework material known as de-MgMOF is prepared by gently annealing Mg-MOF-74. This material retains some of the crystal properties of the original Mg-MOF-74 and exhibits exceptional hydrogen storage capacity at above-ambient temperatures. The MgO5 knots around linker vacancies in de-MgMOF can adsorb a significant amount of dissociated and nondissociated hydrogen, with adsorption enthalpies ranging from -22.7 to -43.6 kJ mol-1, indicating a strong chemisorption interaction. By leveraging a spillover catalyst of Pt, the material achieves a reversible hydrogen storage capacity of 2.55 wt.% at 160 °C and 81 bar. Additionally, this material offers rapid hydrogen uptake/release, stable cycling, and convenient storage capabilities. A comprehensive techno-economic analysis demonstrates that this material outperforms many other hydrogen storage materials at the system level for on-board applications.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania