نتایج جستجو برای: hydrogen storage capacity

تعداد نتایج: 584822  

Journal: :Chemical communications 2009
Rui-Feng Lu Gustav Boëthius Shu-Hao Wen Yan Su Wei-Qiao Deng

By the incorporation of N atoms into naphthalene, we present a theoretical investigation to seek for improved organic hydrogen carriers with an explicit guideline, the release of H2 is found to be greatly favored thermodynamically and the corresponding cycloalkanes possess high hydrogen storage capacity, this offers extensive candidates for practical applications of the promising hydrogen energy.

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2005
Donald L. Anton D. A. Mosher Jesse Adams

Technical Barriers This project addresses the following technical barriers from the Hydrogen Storage section of the Hydrogen, Fuel Cells and Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan: • A. Cost • B. Weight and Volume • D. Durability • E. Refueling Time • M. Hydrogen Capacity and Reversibility • O. Test Protocols and Evaluation Facilities • Q. Th...

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Journal: Iranian Journal of Hydrogen and Fuel Cell 2014
Faiz Pourarian, Hadi Arabi, Seyyed Mojtaba AlaviSadr,

The hydrogenation characterizations of the hydrogen storage alloy MmNi4.22Co0.48Mn0.15Al0.15 (Mm= mischmetal), and the effect of hydrogenation/dehydrogenation (H/D) cycling on its structural and morphological properties are investigated. The results indicate that after several H/D cycles the alloy was pulverized into fine particles, but it kept its hexagonal CaCu5-type structure. The pressure-c...

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Journal: :Physical chemistry chemical physics : PCCP 2015
Fahim Karimi P Klaus Pranzas Claudio Pistidda Julián A Puszkiel Chiara Milanese Ulla Vainio Mark Paskevicius Thomas Emmler Antonio Santoru Rapee Utke Martin Tolkiehn Christian B Minella Anna-Lisa Chaudhary Stefan Boerries Craig E Buckley Stefano Enzo Andreas Schreyer Thomas Klassen Martin Dornheim

Designing safe, compact and high capacity hydrogen storage systems is the key step towards introducing a pollutant free hydrogen technology into a broad field of applications. Due to the chemical bonds of hydrogen-metal atoms, metal hydrides provide high energy density in safe hydrogen storage media. Reactive hydride composites (RHCs) are a promising class of high capacity solid state hydrogen ...

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2016
Jing Wang Zhi-Jing Wei Hui-Yan Zhao Ying Liu

A stable hollow Li20B60 cage with D2 symmetry has been identified using first-principles density functional theory studies. The results of vibrational frequency analysis and molecular dynamics simulations demonstrate that this Li20B60 cage is exceptionally stable. The feasibility of functionalizing Li20B60 cage for hydrogen storage was explored theoretically. Our calculated results show that th...

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Journal: :Nano letters 2006
Giannis Mpourmpakis George E Froudakis George P Lithoxoos Jannis Samios

A multiscale theoretical approach is used for the investigation of hydrogen storage in silicon-carbon nanotubes (SiCNTs). First, ab initio calculations at the density functional level of theory (DFT) showed an increase of 20% in the binding energy of H2 in SiCNTs compared with pure carbon nanotubes (CNTs). This is explained by the alternative charges that exist in the SiCNT walls. Second, class...

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Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1993

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Journal: :Modeling and Numerical Simulation of Material Science 2013

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Journal: :IEEE Access 2023

The design of decarbonized power systems is one the most relevant and challenging problems that system planners are facing nowadays. In this sense, replacement natural gas turbines by H2-fired in future may constitute a solution to reduce greenhouse emissions maintaining dispatchability system. This work develops novel generation capacity expansion formulation considers possibility installing n...

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Journal: :iranian journal of oil & gas science and technology 2013
elahe shekari mohammad reza shishesaz gholamreza rashed mansoor farzam e khayer

the current study assesses the root causes of hydrogen blisters on low strength carbon steel equipment. for this purpose, some experiments including hardness test, non-destructive test (ndt), metallography, and fractograpghy are conducted. the microstructure of two blisters is assessed by means of optical microscopy and scanning electron microscopy (sem). the microstructural studies show that t...

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