Polymer Framework with Continuous Pores for Hydrogen Getters: Molding and a Boost in Getter Rate,ACS Applied Polymer Materials

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Polymer Framework with Continuous Pores for Hydrogen Getters: Molding and a Boost in Getter Rate
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2020-06-23 , DOI: 10.1021/acsapm.0c00391
Hui Dong ₁ , Yingying Wang _{1,

2} , Hao Fu _{1,

2} , Minheng Ye ₁ , Guangping Tang ₁ , Jinlong Pan ₁ , Xianping Xia ₂

Affiliation

The hydrogen getter consisting of 1,4-bis[phenylethynyl]benzene (DEB) and a carbon-supported palladium catalyst (Pd/C) is limited by its powder forms in practical application. Development of the molded DEB-Pd/C is thus highly demanded. To solve the contradiction between molding and hydrogen-getter rate, herein, we prepared a porous polymer matrix composite for DEB-Pd/C by a facile one-phase removal method of their cocontinuous polymer matrices. Such a porous composite exhibits excellent hydrogen-getter activities. More interestingly, under low hydrogen partial pressure, the porous composite had a faster getter rate than that of powder getters. The significantly enhanced activity is attributed to the confinement effects of the continuous pore structure of the polymer frameworks, which further indicates its promise as a highly active and flexible supporting framework for hydrogen absorption or other gas–solid reactions.

中文翻译：

具有连续孔的吸氢剂聚合物骨架：成型和吸气率的提高

由1，4-双[苯基乙炔基]苯（DEB）和碳载钯催化剂（Pd / C）组成的吸氢剂在实际应用中受到其粉末形式的限制。因此，强烈要求开发模塑的DEB-Pd / C。为了解决成型与吸氢率之间的矛盾，本文中，我们通过一种方便的一相去除共连续聚合物基体的方法，制备了用于DEB-Pd / C的多孔聚合物基体复合材料。这种多孔复合材料表现出优异的吸氢活性。更有趣的是，在低氢分压下，多孔复合材料的吸气速率比粉末吸气剂快。活性的显着提高归因于聚合物骨架连续孔结构的约束作用，

更新日期：2020-08-14

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