Insights into heat management of hydrogen adsorption for improved hydrogen isotope separation of porous materials

Sun, Nan; Li, Peilong; Wen, Ming; Song, Jiangfeng; Zhang, Zhi; Yang, Wenbin; Zhou, Yanyan; Luo, Dan; Zhang, Jian Ping

doi:10.1016/j.jmst.2020.09.044

Cited by 8 publications

(2 citation statements)

References 38 publications

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“…When hydrogen desorption is required, the desorption temperature can be reached by moderate heating of the material, allowing hydrogen desorption to be completed quickly, which greatly reduces energy consumption. 49,50 In this work, we explore the hydrogen storage performance of Li-shrouded h-B 3 O. Our studies show that Li-shrouded h-B 3 O is thermodynamically stable and reaches a maximum hydrogen storage capacity of 12.71 wt %.…”

Section: The Journal Of Physical Chemistry Cmentioning

confidence: 98%

“…In the adsorption process, the high thermal conductivity facilitates the rapid release and transfer of the generated heat, avoiding heat accumulation that affects hydrogen adsorption. When hydrogen desorption is required, the desorption temperature can be reached by moderate heating of the material, allowing hydrogen desorption to be completed quickly, which greatly reduces energy consumption. , …”

Section: Introductionmentioning

confidence: 99%

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Ab Initio Study of High-Capacity Hydrogen Storage in Lithium-Shrouded Honeycomb Borophene Oxide Nanosheet

Zhang

2022

J. Phys. Chem. C

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Here, we investigate the hydrogen storage performance of Li alkali metal-shrouded two-dimensional (2D) honeycomb borophene oxide (h-B 3 O) using the Tkatchenko−Scheffler method, an accurate and parameter-free method to determine the long-range van der Waals interactions. Each Li atom can strongly bind three H 2 molecules to the substrate with an average adsorption energy of −0.22 eV/H 2 , and the theoretical weight density of the Li-shrouded h-B 3 O structure can reach 9.84 wt %. In particular, a maximum hydrogen storage capacity of 12.71 wt % is achievable by moderately increasing the external pressure. Lattice thermal conductivity calculations show efficient thermal transport and good adsorption/desorption behavior of H 2 molecules. Furthermore, the study of possible defects in the material showed that the hydrogen storage performance of the Li-shrouded h-B 3 O nanosheet is insensitive to the presence of defects in the material, which has important implications for its experimental synthesis. Our findings indicate that Li-shrouded 2D h-B 3 O is a promising material for reversible H 2 storage.

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Section: The Journal Of Physical Chemistry Cmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Ab Initio Study of High-Capacity Hydrogen Storage in Lithium-Shrouded Honeycomb Borophene Oxide Nanosheet

Zhang

2022

J. Phys. Chem. C

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Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Chen

Zhang

2021

Polymer Composites

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Ag nanoparticle filled thermoplastic polyurethane (AgNPs/TPU) composites are widely used in medical, energy, packaging, electronic devices, additive manufacturing and many other fields, where the service temperature fluctuates easily, making it necessary to study the temperature effect on the properties of composites. In this work, multifunctional AgNPs/TPU composites with different AgNP contents were prepared by a mixing and hot‐pressing method. The results show that the phase change property of TPU is not affected by the addition of AgNPs, but the thermal diffusivity is improved. As the content of AgNPs increases, the thermal conductivities of AgNPs/TPU composites increase significantly, whereas the temperature has an opposite effect. The results of elongation at break and tensile strength show a decreased trend with the increase in the AgNP content and a trend of first increasing and then decreasing with the increase in temperature. As the temperature increases, the tensile moduli of AgNPs/TPU composites decrease significantly. For the temperature higher than 50°C, the electrical percolation thresholds of composites decrease from 5.5 vol% to a lower content. The results prove that the temperature has a significant influence on the thermal, mechanical, and electrical properties of AgNPs/TPU composites.

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Covalent Organic Frameworks‐Based Membranes as Promising Modalities from Preparation to Separation Applications: An Overview

Rasheed

Khan

Ahmad

et al. 2022

The Chemical Record

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Covalent organic frameworks (COFs) are a promising class of porous crystalline materials made up of covalently connected and periodically protracted network topologies through organic linkers. The tailorability of organic linker and intrinsic structures endow COFs with a tunable porosity and structure, low density, facilely‐tailored functionality, and large surface area, attracting increasing amount of interests in variety of research areas of membrane separations. COF‐based membranes have spawned a slew of new research projects, ranging from fabrication methodologies to separation applications. Herein, we tried to emphasis the major developments in the synthetic approaches of COFs based membranes for a variety of separation applications such as, separation of gaseous mixtures, water treatment as well as separation of isomeric and chiral organic compounds. The proposed methods for fabricating COF‐based continuous membranes and columns for real world applications are also thoroughly explored. Finally, a viewpoint on the future directions and remaining challenges for COF research in the area of separation is provided.

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Insights into heat management of hydrogen adsorption for improved hydrogen isotope separation of porous materials

Cited by 8 publications

References 38 publications

Ab Initio Study of High-Capacity Hydrogen Storage in Lithium-Shrouded Honeycomb Borophene Oxide Nanosheet

Ab Initio Study of High-Capacity Hydrogen Storage in Lithium-Shrouded Honeycomb Borophene Oxide Nanosheet

Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Covalent Organic Frameworks‐Based Membranes as Promising Modalities from Preparation to Separation Applications: An Overview

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