Hydrogel assisted nickel nanoparticle synthesis and their use in hydrogen production from sodium boron hydride

Tunable poly(2-acrylamido-2-methyl-1-propan sulfonic acid) based microgels with better catalytic performances for Co and Ni nanoparticle preparation and their use in hydrogen generation from NaBH4

“…Bare p(AMPS), p(AMPS)esilica and porous p(AMPS) microgels were prepared successfully and used for the preparation of different metal nanoparticles, such as Co and Ni from different sources, and used as catalyst systems in hydrolysis of NaBH 4 . Metal (Co, Ni, Cu, Ru) nanoparticle preparation in macro p(AMPS) hydrogel networks was reported previously [1,2, 9,18,22]. In this study, we synthesized modifiable p(AMPS)-based microgels and used these microgels for metal ion loading and metal nanoparticle preparation from different metal ion sources.…”

“…In situ preparation of Co and Ni nanoparticles from the different salts within p(AMPS)-based micro particle network To see the effect of metal ion source, metal ions from different salts (chloride, nitrate, acetate) of Co and Ni were loaded into hydrogels, and their nanoparticles inside different microgels were prepared as reported earlier [1, 9,19,22,23]. Briefly, 100 mg dried microgels were placed into 100 ml of 500 ppm metal ion solutions for 2 h to load these metal ions into microgel matrices.…”

“…Researchers are exploring the use of chemical hydrides such as sodium borohydride (NaBH 4 ) as hydrogen carriers [6]. Hydrolysis of chemical hydrides, such as CaH 2 , LiH, MgH 2 , KBH 4, LiAlH 4, NaBH 4 , and NH 3 BH 4 [7,8], is a common method for producing highly pure hydrogen [9]. Amongst the hydrides, NaBH 4 is a favorable material due to its high hydrogen storage (10.8%) and generation capacity [10,11].…”

“…Earlier, we reported p(AMPS) hydrogels in macro dimensions and their use in in-situ metal nanoparticle preparation and as catalysis media in hydrogen generation in various hydrolysis reactions [5,9,13]. In this investigation, we synthesized bare p(AMPS), p(AMPS)esilica, and porous p(AMPS) in micro dimensions and used these micro particles in metal nanoparticle preparation and in the hydrolysis reaction.…”

“…Synthesis, characterization and determination of the amount of metal particles inside p(AMPS)-based microgel Hydrogel can be used for many purposes, and p(AMPS) hydrogels are widely used for preparation of metal nanoparticles and catalyst systems according to the reported literature [1,2,9,18,22]. Bare p(AMPS), p(AMPS)esilica and porous p(AMPS) microgels were prepared successfully and used for the preparation of different metal nanoparticles, such as Co and Ni from different sources, and used as catalyst systems in hydrolysis of NaBH 4 .…”