A thermosensitive hydrogel carrier for nickel nanoparticles

Jianjia Liu, Jie Wang, Yiming Wang, Chang Liu, Miaomiao Jin, Yisheng Xu, Li Li, Xuhong Guo, Aiguo Hu, Tingyu Liu, Stephen F. Lincoln, Robert K. Prud'homme

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalColloids and Interface Science Communications
StatePublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry
  • Materials Chemistry


  • Heterogeneous catalysis
  • Hydrogels
  • Nanoparticles
  • Phase transitions


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