title: In situ synthesis of poly(ionic liquid)-Pt nanoparticle composite in glass capillary for the electrocatalytic reduction of oxygen.
abstract: A novel approach for in situ synthesizing poly(ionic liquid)-Pt nanoparticle (PIL-Pt) composite in a glass capillary for fabricating filling-type electrode is reported in this work. XRD and TEM were used to characterize the as-synthesized PIL-Pt composite. Because of the modification of poly(ionic liquid)s (PILs), the PIL-Pt composite can not only be dispersed well to form a homogeneous suspension of Pt nanoparticles, but also be synthesized directly in a glass capillary with a tip radius ranging from 250 nm to 2.5 µm. By simple heating at 130 °C, the PIL-Pt composite capillary electrode was fabricated under mild conditions. With the advantages of both PILs and glass capillary, a PIL-Pt capillary electrode can provide a favourable microenvironment for the encapsulated Pt nanoparticles and promote the mass transfer rate; thus, showing a high electrocatalytic activity and stability for an oxygen reduction reaction (ORR). The present study provided a novel method for the development of high performance electrocatalysts based on the construction of PIL-Pt composite in a glass capillary for fuel cell or electrochemical sensors.
authors.affiliation: Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China. gyshi@chem.ecnu.edu.cn awzhu@chem.ecnu.edu.cn.
authors.forename: Meina
authors.initials: M
authors.lastname: Li
authors.forename: Yingzi
authors.initials: Y
authors.lastname: Liu
authors.forename: Shushu
authors.initials: S
authors.lastname: Ding
authors.forename: Anwei
authors.initials: A
authors.lastname: Zhu
authors.forename: Guoyue
authors.initials: G
authors.lastname: Shi