Palladium-polyelectrolyte hybrid nanoparticles for hydrogen sensor in fuel cells
Palladium-polyelectrolyte hybrid nanoparticles for hydrogen sensor in fuel cells
复制标题
DOI：
10.1016/j.jpowsour.2008.11.106
复制
发表时间：
2009-08-01
影响因子：
9.2
通讯作者：
Adschiri, Tadafumi
中科院分区：
文献类型：
--
作者：
Ohara, Satoshi;Hatakeyama, Yoshiharu;Adschiri, Tadafumi
我们利用钯的金属化制备了钯-钯杂化纳米粒子。在这项研究中，我们选择了聚丙烯酸（PAA）作为一种载体，并通过使用抗坏血酸还原PAA上的钯离子，以形成一个独特的球形苔藓状混合纳米粒子。钯（Pd）可以吸收氢成为PdHx，并且氢的储存增加了Pd材料的电阻和体积。这种材料作为一种可靠、廉价、超紧凑和安全的氢传感器，在燃料电池中的应用越来越受到人们的关注。我们展示了利用Pd-PAA混合纳米颗粒作为高度灵敏的氢传感器，其表现出取决于循环气氛交换中的体积膨胀的开关响应。(C)2008 Elsevier B. V.保留所有权利。
We prepared palladium-polyelectrolyte hybrid nanoparticles by using a metallization of polyelectrolyte. In this study, we selected polyacrylic acid (PAA) as a polyelectrolyte and reduced the palladium ions on the PAA by using ascorbic acids in order to form a unique spherically shaped mosslike hybrid nanoparticle. Palladium (Pd) can absorb hydrogen to become PdHx, and the storage of hydrogen increases the electrical resistance and volume of Pd materials. The use of this material is attracting growing interest as a reliable, cheap, ultracompact, and safe hydrogen sensor for use in fuel cells. We showed the utilization of the Pd-PAA hybrid nanoparticles as a highly sensitive hydrogen sensor that exhibited a switch response depending on volume expansion in a cyclic atmosphere exchange. (C) 2008 Elsevier B.V. All rights reserved.