零维和一维石墨材料的超常吸氢性能与机制

Presently, hydrogen storage has become one of the most urgent and difficult problems to be solved in the application of hydrogen energy and fuel cells. Therefore, storing hydrogen by adsorption on various nanostructured carbon materials has been attracting worldwide interest in recent years. However, there has been a great deal of controversy and divergent viewpoints all the way. In this project, the preparation, structure, modification and hydrogen adsorption-desorption characteristics of various nanostructured carbon materials were studied deeply, systematically and accurately. Results indicate that the adsorption-desorption capacities of hydrogen on the presently available carbon nanotubes, graphite nanospheres, graphite nanofibers and super activated carbons are less than 1.1wt％ under the moderate conditions of room temperature and less than 12 MPa. In order to solve the problem of hydrogen storage, new exploration should be carried out further.

研究纳米石墨纤维和微粒的制备条件、形貌和微观结构，实验和分子模拟研究纳米石墨对超临界氢气的吸附平衡、吸附速率、吸附热以及氢在纳米石墨吸附相中的状态和性质，揭示纳米石墨超常吸氢发生的机制、条件和本质，发展吸附理论，为纳米石墨吸附储氢技术的应用奠定基础。这对于推动质子交换膜燃料电池技术和吸附技术的发展都具有十分重要的意义。.