Chemiresistive Hydrogen Sensing with Size-Limited Palladium Nanoparticles in Iptycene-Containing Poly(arylene ether)s
Chemiresistive Hydrogen Sensing with Size-Limited Palladium Nanoparticles in Iptycene-Containing Poly(arylene ether)s
复制标题
在含异丙苯的聚亚芳基醚中使用尺寸有限的钯纳米颗粒进行化学电阻式氢传感
DOI：
10.1021/acsnano.2c10736
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发表时间：
2023
期刊：
影响因子：
17.1
通讯作者：
Swager, Timothy M.
中科院分区：
文献类型：
--
作者：
Luo, Shao-Xiong Lennon;Yuan, Weize;Xue, Mantian;Feng, Haosheng;Bezdek, Máté J.;Palacios, Tomás;Swager, Timothy M.
金属纳米颗粒由于对各种气体具有较高的反应性，在化学传感领域得到了广泛的应用。金属纳米颗粒的大小通常决定了它们的反应性，从而决定了它们作为化学电阻传感器的性能。本文中，我们报道了含有iptyene的聚（芳烯醚）s （PAEs）已经被证明可以限制钯纳米粒子（Pd NPs）的生长并稳定Pd NPs的分散。这些多孔PAEs也有助于分析物的有效运输。基于单壁碳纳米管（SWCNT）的化学电阻器和使用这些pae支持的小型Pd NPs的石墨烯场效应晶体管（gfet）是在环境条件下对氢气敏感、选择性和坚固的传感材料。可推广的策略包括用含戊烯的聚对苯基乙烯（PPEs）预分类SWCNTs和热退火，证明了耐化学性能的显著改善。本研究制备的聚合物：NP胶体易于合成且可溶液加工，具有普遍的实用价值。
Metal nanoparticles have been widely employed in chemical sensing due to their high reactivity toward various gases. The size of the metal nanoparticles often dictates their reactivity and hence their performance as chemiresistive sensors. Herein, we report that iptycene-containing poly(arylene ether)s (PAEs) have been shown to limit the growth of palladium nanoparticles (Pd NPs) and stabilize the Pd NPs dispersion. These porous PAEs also facilitate the efficient transport of analytes. Single-walled carbon nanotube (SWCNT)-based chemiresistors and graphene field-effect transistors (GFETs) using these PAE-supported small Pd NPs are sensitive, selective, and robust sensory materials for hydrogen gas under ambient conditions. Generalizable strategies including presorting SWCNTs with pentiptycene-containing poly(p-phenylene ethynylene)s (PPEs) and thermal annealing demonstrated significant improvements in the chemiresistive performance. The polymer:NP colloids produced in this study are readily synthesized and solution processable, and these methods are of general utility.