Exploiting the Kubas Interaction in the Design of Hydrogen Storage Materials
Exploiting the Kubas Interaction in the Design of Hydrogen Storage Materials
复制标题
DOI：
10.1002/adma.200802832
复制
发表时间：
2009-05-11
影响因子：
29.4
通讯作者：
Antonelli, David M.
中科院分区：
文献类型：
--
作者：
Hoang, Tuan K. A.;Antonelli, David M.
利用固态材料吸附和储存氢是当前研究的热点，也是实现氢经济的主要障碍之一。然而，目前还没有一种材料能达到美国能源部2015年的目标，即9 wt%和80 kg m（-3）。为了增加这些材料的物理吸附能力，必须将吸附热增加到类似于20 kJ mol（-1）。这可以通过优化材料结构，在表面创造更多的活性物质，或改善表面与氢的相互作用来实现。本进展报告的主要重点是基于氢结合的Kubas模型(eta(2)-H-2)-金属相互作用)的物理吸附材料的最新进展，这些材料在室温下具有更高的吸附热和更好的氢吸附。将讨论计算方法和综合成果。利用Kubas相互作用的材料代表了金属氢化物和物理吸附材料之间连续体的中间值，随着研究人员更多地了解它们在储氢问题上的应用，它们变得越来越重要。
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 similar 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: (eta(2)-H-2)-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.