直接甲醇燃料电池纳米微球堆积多孔催化层结构的构筑

来源 :第十五届全国氢能会议暨第7届两岸三地氢能研讨会 | 被引量 : 0次 | 上传用户:thomas012
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
直接甲醇燃料电池是一种绿色新能源,具有能量转化效率高和能量密度高、环境友好、运行噪声低、操作方便等优点,已经在能源领域引起了广泛的研究兴趣,尤其在电动汽车、手机、笔记本、便携式通讯和医疗设备等的动力电源和移动电源领域具有极其广阔的应用前景[1].然而制约其实际应用的主要原因之一在于贵金属催化剂的载量比较高,催化剂的利用率不高导致实际应用成本偏高[2].
其他文献
Molybdenum-modified Co-B alloy nanoparticles are obtained by the ultrasound-assisted chemical reduction method.The relationship between microstructure,catalytic activity and kinetics performance for H
会议
Nowadays the gas mixture from fossil fuel processing is still the main source for large scale hydrogen production,hence the separation of hydrogen with high recovery ratio and purity arises as an impo
Pure hydrogen and carbon nanotubes were produced via thermo-catalytic decomposition(TCD)of methane over corn-like CeO2@Co3O4 catalysts in a vertical fixed-bed reactor.The effect of reaction temperatur
Developing low-cost and high-efficiency hydrogen production methods has become one of the most urgent and challenging tasksbefore real applications of the hydrogen fuel.Hydrogen production by dry refo
会议
Mixing pattern and hydraulic retention time(HRT)show significant effects on photo-fermentation hydrogen production process,various novel bioreactor types with diverse mixing patterns were employed und
会议
NaBH4以其含氢量高(10.6 wt %)成为较有前途的氢源之一[1].在适当催化剂作用下,NaBH4可以通过水解的方式制氢[2,3].本文通过室温化学镀法成功制备了纳米Co-B催化剂,并考察了不同制备条件(pH值、还原剂浓度、施镀时间以及施镀温度)对催化剂的形貌、组成及结构的影响.采用X射线衍射、扫描电镜技术对制备的催化剂进行了物相组成以及结构的分析和表征.
会议
氢能要真正替代传统能源,实现大规模推广应用,还面临着诸多技术挑战,如:1)、氢的大规模生产技术;2)、氢的运输和储存技术;3)、氢能的利用技术(如氢内燃机和燃料电池技术);4)、氢能利用体系基础设施的构建等方面。对于以上技术挑战,氢能在常温常压下的储存与运输技术已然真正成为了制约"氢能经济"大规模发展的瓶颈问题。
Decomposition of HI is the key reaction of hydrogen production in the iodine–sulfur thermochemical water splitting cycle,so studies about the catalysts for HI decomposition have drawn increasing atten
本文通过高能球磨MgH2和α-Fe粉的混合物,制备了MgH2-Fe纳米复合材料,并对其吸放氢前后的物相组成、微结构及其储氢性能进行了深入研究.PCT测试结果表明,MgH2-Fe中Mg的氢化焓为-66.8kJ/mol H2,略高于纯MgH2中Mg的氢化焓,而MgH2-Fe吸放氢过程的滞后现象相对于纯MgH2也得到抑制.MgH2-Fe纳米复合材料的起始放氢温度比纯MgH2低180℃,特别是其放氢产物可
Experiments and theoretical model were performed to investigate the kinetics of hydrogen absorption and desorption of Mg99Nd0.4Zn0.4Zr0.2 hydrogen storage alloy.We took into account the effect of temp