文献类型：期刊文献

英文题名：A thermosensitive hydrogel carrier for nickel nanoparticles

作者：Liu, Jianjia[1];Wang, Jie[1,2,3];Wang, Yiming[1];Liu, Chang[1];Jin, Miaomiao[1];Xu, Yisheng[1];Li, Li[1];Guo, Xuhong[1];Hu, Aiguo[2];Liu, Tingyu[3];Lincoln, Stephen F.[4];Prud'homme, Robert K.[5]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[3]Suzhou Ind Pk Human Resources Dev Co Ltd, Suzhou 215021, Peoples R China;[4]Univ Adelaide, Dept Chem, Adelaide, SA 5005, Australia;[5]Princeton Univ, Dept Chem Engn, Princeton, NJ 08544 USA

年份：2015

卷号：4

起止页码：1

外文期刊名：COLLOID AND INTERFACE SCIENCE COMMUNICATIONS

收录：WOS:【ESCI(收录号:WOS:000364383100001)】；

基金：This work was supported by the NSFC Grants 51403062, 51273063 and 20774030, the Fundamental Research Funds for the Central Universities, the higher school specialized research fund for the doctoral program (20110074110003), the China Postdoctoral Science Foundation (2013M541485), the China Scholarship Council, the Australian Research Council Grant DP110103177 and 111 Project Grant (B08021).

语种：英文

外文关键词：Heterogeneous catalysis; Hydrogels; Nanoparticles; Phase transitions

摘要：Segments of a p(NIPA-co-AMPS) hydrogel synthesized from N-isopropyl acrylamide (NIPA) and 2-acrylamido-2methyl-1-propane sulfonic acid (AMPS) with N, N'-methylenebis(acrylamide) (BIS) acting as cross-linker stabilized nickel nanoparticles (Ni-NPs) of uniform size in an aqueous solution. The rate of catalysis of the borohydride reduction of 4-nitrophenol to 4-aminophenol by these nanoparticles shows a complex temperature variation consistent with the hydrogel changing from a contracted to an expanded state below a lower critical solution temperature, LCST, of similar to 310 K. These observations provide insights into nanoparticle stabilization and catalysis and indicate potential pathways toward stable sophisticated nanoparticle catalysts for use in aqueous solution. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).