摘要:
A nickel-doped Mg nanocrystals encapsulated by molecular-sieving reduced graphene oxide (rGO) layers is disclosed. Dual-channel doping, which combines external (rGO strain) and internal (Ni doping) mechanisms, efficiently promotes both hydriding and dehydriding processes of Mg nanocrystals, simultaneously improving both the kinetic and thermodynamic properties of the material. The composite achieves both high hydrogen storage capacity and excellent kinetics while maintaining robustness. The realization of three complementary functional components in one material-environmentally friendly and earth-abundant Mg for storage, Ni dopants for catalysis, and rGO layers for encapsulation-breaks new ground in metal hydrides and makes solid-state materials viable candidates for hydrogen-fueled applications.
摘要:
A hydrogen generator, a fuel pellet assembly for use in the hydrogen generator and a fuel cell system are disclosed. The hydrogen generator includes a housing having a lid pivotally connected to a base and a strip having a plurality of heaters on one side and a second plurality of heaters on the opposite side. A first cartridge is disposed on one side of the strip and a second cartridge is disposed on the opposite side. Each of the first and second cartridges has a plurality of fuel pellets, each including a hydrogen-containing material that will release hydrogen gas when heated. The heaters are selectively activated to heat one or more fuel pellets to initiate the release of hydrogen gas.
摘要:
A coated hydrogen storage pellet; wherein the pellet comprises a hydrogen-storage material; the coating comprises a hydrogen-permeable polymer and the coating has a mean thickness of less than 50 μm.
摘要:
Systems and methods for manufacturing a tank for storing hydrogen in metal hydride powder are disclosed. The tank can include a closed enclosure divided into closed cells. Each of the cells can contain metal hydride powder. Each of the cells can also be manufactured successively by assembling the cells in order to form an open cavity or alveolar cell. One or more bulk pieces of a material capable of forming a metal hydride can be placed in the cavity. The cell can be closed with the bulk pieces by closing the cavity. After cells are closed, hydrogen can be introduced into the tank for transforming the bulk pieces into metal hydride powder.
摘要:
A system for storing hydrogen in composite materials comprising polymers in porous scaffolds. The solubility of hydrogen in polymers increases considerably when these polymers are confined to the pores of a porous scaffold, allowing enough hydrogen to be dissolved to make these composite materials practical for hydrogen storage.
摘要:
In at least one embodiment, a compressed gaseous fuel storage pellet is provided comprising a gas adsorbent material and a thermally conductive material extending substantially an entire dimension of the pellet and having a thermal conductivity of at least 75 W/mK. The pellet may include at least two layers of gas adsorbent material spaced apart along a compression direction of the pellet and a substantially continuous layer of the thermally conductive material disposed between the at least two layers of gas adsorbent material. The pellet may further include thermally conductive projections which intersect the layer(s) of thermally conductive material.
摘要:
Porous wall hollow glass microspheres are provided as a template for formation of nanostructures such as carbon nanotubes, In addition, the carbon nanotubes in combination with the porous wall hollow glass microsphere provides an additional reaction template with respect to carbon nanotubes.
摘要:
A novel method to increase volumetric hydrogen storage capacity for Pt/AC materials, which comprises a material providing step, an acid washing step, a glucose mixing step, a pellet pressing step combining liquefaction and carbonization, a impurity removing step, a mixed solution introducing step, and a washing and filtering step to provide a method for high quality hydrogen storage material production by supporting platinum on active carbon.
摘要:
A source of hydrogen is a glass or glass-ceramic shell and a gas comprising at least 80% by volume of hydrogen. The glass shell has an initial permeability to hydrogen gas of less than about 50% decrease in pressure in 30 days and a final permeability to hydrogen of about 50% decrease in pressure in a few minutes or less, upon exposure of the glass to a continuous or pulsed fluence of at least 0.1 W/cm2 of electromagnetic radiation to modulate the microstructure of the glass and to increase the hydrogen gas permeability of the glass network. A method of providing hydrogen gas in the shell and exposing the shell to electromagnetic radiation of a wavelength and fluence that increases permeability of the shell to hydrogen gas so that encapsulated hydrogen gas permeates through the shell.
摘要翻译:氢源是玻璃或玻璃 - 陶瓷壳体和包含至少80体积%氢气的气体。 玻璃壳的初始渗透性在30天内压力小于约50%,氢气的最终渗透性在几分钟或更短时间内在压力下降约50%,当玻璃暴露于连续的 或至少0.1W / cm 2的电磁辐射的脉冲能量密度来调节玻璃的微结构并增加玻璃网络的氢气渗透性。 在壳中提供氢气并将壳体暴露于波长和能量密度的电磁辐射的方法,其增加了壳体对氢气的渗透性,使得封装的氢气渗透通过壳体。
摘要:
The present invention provides a microporous carbon material capable of expressing functions that supported metal has while maintaining pore functions that the microporous carbon material inherently possesses. The microporous carbon material 5 includes: a three-dimensional long-range ordered structure within a range from 0.7 nm or more to 2 nm or less; and micropores 2a, wherein a transition metal 4 is supported on surfaces of the micropores 2a. The microporous carbon material is obtained by a method including: introducing an organic compound on a surface of and inside the micropores of a porous material containing transition metal, and obtaining a composite of the microporous carbon material containing the transition metal and the porous material by carbonizing the organic compound by a chemical vapor deposition method; and removing the porous material. Alternatively, the microporous carbon material is obtained by a method including: introducing an organic compound on a surface of a porous material and obtaining a microporous carbon material by a chemical vapor deposition method; and supporting the transition metal on a surface of the microporous carbon material by immersing and impregnating the microporous carbon material in a transition metal salt solution.