新的混合材料可能很快就会导致先进的燃料电池技术

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Apr 21 2021

When it comes to fuel cell technology, protons are considered the next big thing. The subatomic exchange generates significant power that challenges modern solid-state fuel cell technology that is currently used to fuel space shuttles.

*在基于多氧计能的框架中，通过扩展的氢键网络传导了超高的质子传导，该框架与灯笼离子功能化。图片来源：广岛大学。*

为了加快基于质子的技术的开发，国际研究团队创造了一种新的混合材料，该材料成功地以高湿度和温度提供了质子，这是先前尝试中面临的两个至关重要的挑战。

The findings were published in American Chemical Society’sACS应用材料和界面亚博网站下载journal on April 19^th，2021。

Headed by the University of Tokyo in Japan, the researchers targeted a material known as polyoxometalates (POMs), which they had already produced into a composite using compounds and another polymer to give structural stability.

POMs are attractive as building blocks for the design and synthesis of new materials with desirable properties and functions—they can efficiently transport protons, for example, but only at low temperatures and in low humidity. Unfortunately, a huge problem remained to be solved is that our composite decomposed at higher temperatures and humidity。

Masahiro Sadakane, Study Author and Professor, Graduate School of Advanced Science and Engineering, Hiroshima University

To overcome this issue, the team encapsulated positively charged ions in the internal cavities of the material to further modify the composite. To stabilize material conductivity, negatively charged ions, called anions, are balanced by positive ions, called cations.

研究人员愿意整合金属元素（在室温下保持坚实的欧洲）的整合。尤其是，欧洲对水分子有吸引力，并将外部氧气带入材料中。质子通常通过与氧气结合通过系统传播。如果有更多的氧气，则该过程将具有更大的质子传导性。

Our goal is to produce stable high proton-conductive materials. Through fine control of the components, we produced such a material。

东京大学艺术与科学学院基础科学学院的研究作者和副教授Sayaka Uchida亚博老虎机网登录

The material continued to show high proton conductivity at 50% humidity and at temperatures of 202.73 °F (368 °K). The team has planned to further boost the stability as well as proton conductivity.

We plan to increase the stability and proton conductivity so that this material can be used as an electrolyte in fuel cells, enhancing their performance. This work could provide guidance for the design of solid-state proton conductors。

Masahiro Sadakane, Study Author and Professor, Graduate School of Advanced Science and Engineering, Hiroshima University

该研究的合着者包括东京大学艺术与科学学院基础科学系的Tsukasa Iwano，Naoki Ogiwara和Masanari Okuno；亚博老虎机网登录来自应用化学系高级科学与工程学系的Kota Shitamatsu在亚博老虎机网登录广岛大学。

卡纳泽大学自然科学技术研究生院化学系的Yuji Kikukawa；亚博老虎机网登录名古屋大学科学研究生院Satoru Ikemoto，Sora Shirai和Satoshi Muratsugu；亚博老虎机网登录纽卡斯尔大学自然与环境科学学院化学系的Paul G. Waddell和R. John Errington也是该研究的合着者。亚博老虎机网登录

该研究由日本科学促进学会和广岛大学多氧计算科学网络资助。亚博老虎机网登录