权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Polymer-based hydrogen storage materials.

聚合物基储氢材料。

基本信息

批准号：
EP/D074312/1
负责人：
Neil McKeown
金额：
$ 49.54万
依托单位：
CARDIFF UNIVERSITY
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2006
资助国家：
英国
起止时间：
2006 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FD074312%2F1
关键词：
Polymer based hydrogen storage materials.

项目摘要

This multidisciplinary research programme seeks to overcome one of the most urgent and difficult challenges in materials science: hydrogen storage. In the context of climate change and dwindling oil reserves, hydrogen could be the perfect zero-carbon fuel for a car as it only gives water as a by-product. Although the method of production of hydrogen has yet to be optimised for sustainability, the greatest obstacle to the development of hydrogen-powered cars is the lack of a system for safe, efficient and convenient on-board storage of hydrogen. The physisorption of hydrogen on the large and accessible surface of a microporous material offers the attractive possibility of safe hydrogen storage with an energy efficient release for consumption. However, physisorption relies on the very weak interactions between the microporous material and hydrogen molecules, therefore, the mass loadings are generally low. The International Energy Authority (IEA) has set a target of 5% reversible mass loading for a realistic storage system. Thus, the challenge is set to make a microporous material of appropriate structure and chemical composition to help reach this ambitious target. Previously, polymers have not been investigated as materials for the storage of hydrogen because most polymers have enough conformational and rotational freedom to pack space efficiently and are therefore not microporous. However, our recently developed polymers of intrinsic microporosity (PIMs) do possess significant microporosity and preliminary hydrogen sorption results are encouraging with significant quantities adsorbed. Most importantly, the chemical composition of PIMs can be tailored via synthetic chemistry. Therefore, the adventurous primary objective of this proposal is to prepare novel PIMs in a form that demonstrate hydrogen loadings equal to or in excess of the IEA 5% benchmark at moderate pressures and 77 K.

这个多学科的研究计划旨在克服材料科学中最紧迫和最困难的挑战之一：储氢。在气候变化和石油储量减少的背景下，氢可能是汽车完美的零碳燃料，因为它只会产生水作为副产品。尽管氢的生产方法还有待于优化以实现可持续性，但氢动力汽车发展的最大障碍是缺乏安全、高效和方便的车载氢储存系统。氢在微孔材料的大且可接近的表面上的物理吸附提供了安全储氢的有吸引力的可能性，其具有能量有效释放以供消耗。然而，物理吸附依赖于微孔材料和氢分子之间非常弱的相互作用，因此，质量负载通常较低。国际能源署（IEA）已经为现实的存储系统设定了5%可逆质量负载的目标。因此，挑战在于制造具有适当结构和化学组成的微孔材料，以帮助实现这一雄心勃勃的目标。以前，聚合物没有被研究作为用于储存氢的材料，因为大多数聚合物具有足够的构象和旋转自由度以有效地填充空间，因此不是微孔的。然而，我们最近开发的聚合物的固有微孔性（PIM）具有显着的微孔性和初步的氢吸附结果是令人鼓舞的吸附量显着。最重要的是，PIM的化学成分可以通过合成化学来定制。因此，该提议的冒险的主要目标是制备新型PIM，其形式为在中等压力和77 K下表现出等于或超过IEA 5%基准的氢负载。