Li group-李彦光课题组
Li group-李彦光课题组
近年来,随着能源和环境问题的日益加剧,绿色可再生能源成为了研究的热点。这些清洁能源在时间、空间上分布不均匀,需要匹配有相应的能量储能装置如锂离子电池等进行有效存储和可控释放。然而,有限的锂资源是制约锂离子电池进一步发展的一个重要因素。
石墨烯包覆的过渡金属纳米颗粒作为一种新型的电催化剂材料受到人们的广泛关注。研究者对这类石墨烯包覆的核壳结构催化剂提供了“电子注入”的“限域催化”机制,认为内核金属颗粒能够将活性价电子注入到石墨烯壳层,从而改变外层石墨烯的功函数,使其成为催化的活性位点。
石墨烯包覆的过渡金属纳米颗粒作为一种新型的电催化剂材料受到人们的广泛关注。研究者对这类石墨烯包覆的核壳结构催化剂提供了“电子注入”的催化原理,认为内核金属颗粒能够将活性价电子注入到石墨烯壳层,从而改变外层石墨烯的功函数,使其成为催化的活性位点。
苏州大学功能纳米与软物质研究院的李彦光教授课题组与美国斯坦福大学戴宏杰教授课题组等近日在燃料电池阳极催化剂的研究中取得了重大突破。他们通过简单两步化学方法制备了Pt/Ni(OH)2/rGO三元结构催化剂。通过仪器表征,观察到Pt纳米颗粒均匀地长在了Ni(OH)2/rGO体系中。
Stanford researchers have developed an inexpensive device that uses light to split water into oxygen and clean-burning hydrogen. The goal is to supplement solar cells with hydrogen-powered fuel cells that can generate electricity when the sun isn't shinin
Stanford University scientists have created an advanced zinc-air battery with higher catalytic activity and durability than similar batteries made with platinum and other costly catalysts. The results, published in the journal Nature Communications, could
Stanford researchers have found that carbon nanotubes could help replace platinum in future batteries, significantly reducing production costs.
Platinum catalysts in fuel cells are too expensive for large-scale production. Stanford scientists have developed a technique that could make carbon nanotubes an attractive, low-cost alternative.
Porous cobalt oxide nanowires can be grown on a range of conducting substrates