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  • 标题:A thermosensitive hydrogel carrier for nickel nanoparticles
  • 本地全文:下载
  • 作者:Jianjia Liu ; Jie Wang ; Yiming Wang
  • 期刊名称:Computational and Structural Biotechnology Journal
  • 印刷版ISSN:2001-0370
  • 出版年度:2015
  • 卷号:13
  • 页码:1-4
  • DOI:10.1016/j.colcom.2014.12.001
  • 出版社:Computational and Structural Biotechnology Journal
  • 摘要:Abstract Segments of a p(NIPA-co-AMPS) hydrogel synthesized from N-isopropyl acrylamide (NIPA) and 2-acrylamido-2-methyl-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 ~ 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.
  • 关键词:Heterogeneous catalysis ;Hydrogels ;Nanoparticles ;Phase transitions
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