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负载于多孔海藻酸钠-聚（苯乙烯磺酰胺-丙烯酰胺）上的镍纳米颗粒的制备、表征及催化活性

The preparation, characterization and catalytic activity of Ni NPs supported on porous alginate--poly(-styrene sulfonamide--acrylamide).

作者信息

Alavinia Sedigheh, Ghorbani-Vaghei Ramin

机构信息

Department of Chemistry, Bu-Ali Sina University 65174 Hamedan Iran

出版信息

RSC Adv. 2021 Sep 6;11(47):29728-29740. doi: 10.1039/d1ra04022g. eCollection 2021 Sep 1.

DOI:10.1039/d1ra04022g
PMID:35479525
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9040858/
Abstract

Herein, we report the synthesis of nickel nanoparticles under mild conditions using porous alginate--poly(-styrene sulfonamide--acrylamide) as a protecting/stabilizing agent and sodium borohydride as a reducing agent. The porous cross-linked polymeric support was prepared combining the use of sol-gel, nanocasting, and crosslinking techniques, in which the -styrene sulfonamide monomer (PSSA) and ,'-methylene-bis (acrylamide) (MBA) cross-linker underwent copolymerization on the surface of sodium alginate in the presence of a SiO nanoparticle (NP) template (Alg-PSSA--ACA). The prepared catalyst (Alg-PSSA--ACA@Ni) showed high catalytic activity for the one-step synthesis of 1,3,4-oxadiazoles from the reaction of hydrazides and aryl iodides through isocyanide insertion/cyclization.

摘要

在此，我们报道了在温和条件下，以多孔藻酸盐-聚（苯乙烯磺酰胺-丙烯酰胺）为保护/稳定剂，硼氢化钠为还原剂合成镍纳米颗粒。通过溶胶-凝胶、纳米铸造和交联技术相结合制备了多孔交联聚合物载体，其中苯乙烯磺酰胺单体（PSSA）和N,N'-亚甲基双丙烯酰胺（MBA）交联剂在SiO纳米颗粒（NP）模板存在下于海藻酸钠表面进行共聚（Alg-PSSA-ACA）。所制备的催化剂（Alg-PSSA-ACA@Ni）对酰肼与芳基碘通过异腈插入/环化反应一步合成1,3,4-恶二唑显示出高催化活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/eb22a7c7d4d2/d1ra04022g-f10.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/d26f95af764d/d1ra04022g-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/e117d067a777/d1ra04022g-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/8794d446016e/d1ra04022g-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/db7407aae0d8/d1ra04022g-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/8d0953da5917/d1ra04022g-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/4ee7ac5207df/d1ra04022g-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/eb22a7c7d4d2/d1ra04022g-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/1af66cccc694/d1ra04022g-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/d3b48b0f2e9c/d1ra04022g-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/bcc097222599/d1ra04022g-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/26b14d875836/d1ra04022g-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/becccc565a36/d1ra04022g-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/a1dbf93bfecd/d1ra04022g-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/d26f95af764d/d1ra04022g-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/e117d067a777/d1ra04022g-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/8794d446016e/d1ra04022g-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/db7407aae0d8/d1ra04022g-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/8d0953da5917/d1ra04022g-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/4ee7ac5207df/d1ra04022g-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/204e/9040858/eb22a7c7d4d2/d1ra04022g-f10.jpg

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