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Hydrogen Storage Materials (hydrogen + storage_material)
Selected AbstractsChemInform Abstract: Ammonia Borane Destabilized by Lithium Hydride: An Advanced On-Board Hydrogen Storage Material.CHEMINFORM, Issue 44 2008Xiangdong Kang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Calcium Amidotrihydroborate: A Hydrogen Storage Material.CHEMINFORM, Issue 9 2008Himashinie V. K. Diyabalanage Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Synthesis of NaAlH4 -Based Hydrogen Storage Material Using Milling under Low Pressure Hydrogen Atmosphere.CHEMINFORM, Issue 21 2007Nico Eigen Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Tailoring Hydrogen Storage Materials Towards ApplicationADVANCED ENGINEERING MATERIALS, Issue 5 2006M. Dornheim Abstract A breakthrough in hydrogen storage technology was achieved by preparing nanocrystalline hydrides using high-energy ball milling and the use of suitable catalysts/additives. These new materials show fast or in case of Mg-based hydrides very fast absorption and desorption kinetics within minutes, thus qualifying lightweight Mg- or Al-based hydrides for storage applications. This article summarizes our current understanding of the kinetics of Mg-based light metal hydrides, describes an approach for a cost-effective processing technology and highlights some promising new developments in lightweight metal hydride research. [source] Exploiting the Kubas Interaction in the Design of Hydrogen Storage MaterialsADVANCED MATERIALS, Issue 18 2009Tuan K. A. Hoang Abstract Hydrogen adsorption and storage using solid-state materials is an area of much current research interest, and one of the major stumbling blocks in realizing the hydrogen economy. However, no material yet researched comes close to reaching the DOE 2015 targets of 9,wt% and 80,kg,m,3 at this time. To increase the physisorption capacities of these materials, the heats of adsorption must be increased to ,20,kJ,mol,1. This can be accomplished by optimizing the material structure, creating more active species on the surface, or improving the interaction of the surface with hydrogen. The main focus of this progress report are recent advances in physisorption materials exhibiting higher heats of adsorption and better hydrogen adsorption at room temperature based on exploiting the Kubas model for hydrogen binding: (,2 -H2),metal interaction. Both computational approaches and synthetic achievements will be discussed. Materials exploiting the Kubas interaction represent a median on the continuum between metal hydrides and physisorption materials, and are becoming increasingly important as researchers learn more about their applications to hydrogen storage problems. [source] Amorphous Infinite Coordination Polymer Microparticles: A New Class of Selective Hydrogen Storage Materials,ADVANCED MATERIALS, Issue 11 2008You-Moon Jeon A new class of micrometer-sized amorphous infinite coordination particles is selectively prepared from the coordination chemistry of a metallo-salen building block and Zn2+ ions. The particles show moderately high H2 uptake and almost no N2 adsorption, even though they are amorphous and do not have the well-defined channels typically used to explain such selectivity in metal,organic framework systems. [source] ChemInform Abstract: Ti-Substituted Boranes as Hydrogen Storage Materials: A Computational Quest for the Ideal Combination of Stable Electronic Structure and Optimal Hydrogen Uptake.CHEMINFORM, Issue 34 2009Cheng-Gen Zhang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Promoted H2 Generation from NH3BH3 Thermal Dehydrogenation Catalyzed by Metal,Organic Framework Based CatalystsCHEMISTRY - A EUROPEAN JOURNAL, Issue 35 2010Dr. Yaoqi Li Abstract The application of ammonium borane (AB) as a hydrogen storage material is limited by the sluggish kinetics of H2 release. Two catalysts based on metal,organic frameworks (MOFs) have been prepared either by applying MOF as precursors or by the in situ reduction method. In the release of H2 from AB, the high H2 content of the whole system, the remarkably lower reaction onset temperature, the significantly increased H2 release rates at ,90,°C, and the decreased reaction exothermicity have all been achieved with only 1.0,mol,% MOF-based catalyst. Moreover, the clear catalytic diversity of three catalysts has been observed and discussed. The in situ synthesized Ni0 sites and the MOF supports in the catalysts were proven to show significant and different effects to promote the catalytic activities. With MOF-based catalysts, both the enhanced kinetics and the high H2 capacity of the AB system present great advantages for future use. [source] Studies on a New Material for Hydrogen Storage and Supply by Modified Fe and Fe2O3 PowderCHINESE JOURNAL OF CHEMISTRY, Issue 7 2007Hui Wang Abstract Modified iron oxide, a new material for hydrogen storage and supply to polymer electrolyte fuel cell (PEFC), was prepared by impregnating Fe or Fe2O3 powder with an aqueous solution containing metal cation additives (Al, Cr, Ni, Co, Zr and Mo). Hydrogen storage properties of the samples were investigated. The results show that both Fe and Fe2O3 powder with additive Mo presented excellent catalytic activity and cyclic stability, and their hydrogen producing temperature could be surprisingly decreased. The temperature of forming hydrogen for the Fe2O3 -Mo at the rate of 250 µmol·min,1·Fe-g,1 could be dramatically decreased from 527 °C before addition of Mo to 283 °C after addition of Mo in the fourth cycle. The cause for it was probably related to preventing the sinter of the sample particles. In addition, hydrogen storage capacity of the Fe2O3 -Mo can reach w=4.5% (72 kg H2/m3), close to International Energy Agency (IEA) criterion. These show the value of practical application of the Fe2O3 -Mo as the promising hydrogen storage material. [source] Mixed-Anion and Mixed-Cation Borohydride KZn(BH4)Cl2: Synthesis, Structure and Thermal DecompositionEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 11 2010Dorthe B. Ravnsbæk Abstract KZn(BH4)Cl2, synthesized for the first time, contains a heteroleptic complex anion [Zn(BH4)Cl2],, extending the structural diversity of metal borohydrides. In-situ synchrotron powder diffraction, NMR and Raman spectroscopy were used to characterize KZn(BH4)Cl2 and to evaluate the mechanism for its thermal decomposition. The title compound decomposes at a significantly lower temperature than KBH4 and may be used for inspiration for the design of novel hydrogen storage materials. Combining different ligands in modified metal borohydrides is proposed as a way to adjust stability with respect to hydrogen desorption. [source] | |||||||||||||