Electrospun carbon nano-felt surface-attached with Pd nanoparticles for hydrogen sensing application
Electrospun carbon nano-felt surface-attached with Pd nanoparticles for hydrogen sensing application
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DOI：
10.1016/j.matlet.2011.10.064
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发表时间：
2012-02-01
影响因子：
3
通讯作者：
Fong, Hao
中科院分区：
文献类型：
--
作者：
Zhang, Lifeng;Wang, Xiaoxu;Fong, Hao
采用偕胺肟基对聚丙烯腈纳米毡进行表面功能化处理，制备了表面附着Pd纳米粒子的碳纳米纤维毡（纳米毡），并探讨了其在氢传感器中的应用。该材料由相对均匀和随机覆盖的碳纳米纤维组成，其直径类似于300 nm，而附着的Pd纳米颗粒的尺寸在几纳米到几十纳米的范围内。静电纺丝碳纳米毡是机械柔性/弹性的，并且材料的电阻在室温下暴露于H-2时变化。该研究表明，表面附着有金属纳米颗粒的静电纺碳纳米毡可以作为制备气体和/或生物传感器的首选材料，并且静电纺聚丙烯腈纳米毡的酰胺肟功能化可以是开发表面附着有不同金属纳米颗粒的各种碳纳米毡的通用方法。(c)2011 Elsevier B. V.保留所有权利。
Carbon nanofibrous mat (nano-felt) surface-attached with Pd nanoparticles was prepared from electrospun polyacrylonitrile nano-felt surface-functionalized with amidoxime groups, and its application for hydrogen sensing was explored. The material consisted of relatively uniform and randomly overlaid carbon nanofibers with diameters of similar to 300 nm, while the attached Pd nanoparticles had sizes in the range from a few to tens of nanometers. The electrospun carbon nano-felt was mechanically flexible/resilient, and the resistance of the material varied upon exposure to H-2 at room temperature. The study suggested that electrospun carbon nano-felts surface-attached with metal nanoparticles could be a material of choice for the fabrication of gas- and/or bio-sensors, and the amidoxime-functionalization of electrospun polyacrylonitrile nano-felt could be a general approach for the development of various carbon nano-felts surface-attached with different metal nanoparticles. (c) 2011 Elsevier B.V. All rights reserved.