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铂分解技术让燃料电池更具成本效益

发布时间:2017-06-07 10:09:41 分类:新闻动态 来源: 点击:次

铂分解技术让燃料电池更具成本效益 铂分解技术让燃料电池更具成本效益 铂分解技术让燃料电池更具本钱效益 通过使用加拿大光源中心(CLS)的同步加速器,研究人员发现,将昂贵的铂金属分解成纳米粒子(甚或是单个原子)可制造出更低本钱的燃料电池。在麦克马斯特大学、CLS同步加速器、巴拉德动力系统公司的通力合作下,研究人员开发出1种利用原子层沉积(ALD)的新方法。这类表面科学技术可用于对化合物进行沉积,创建单原子催化剂。由加拿大西安大略大学的孙学良(音译)和岑俊江主持的该项研究成果,发表在最新1期《自然》杂志的网络版上。通经常使用作催化剂的铂金属是非常昂贵的,但其只有表面的原子可起作用。表面之下的其他原子不具有作为催化剂的功能,铂的有效利用率只有10%至20%。通过分散铂金属的方式,可大大提高每一个原子的使用效力。同步辐射和超高分辨率透射电子显微镜在跟踪铂的化学特性及其表现方面发挥了很大

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铂分解技术让燃料电池更具成本效益