A Palladium‐Nanoparticle and Silicon‐Nanowire‐Array Hybrid: A Platform for Catalytic Heterogeneous Reactions

Abstract

We report the development of a silicon nanowire array-stabilized palladium nanoparticle catalyst, SiNA-Pd. Its use in the palladium-catalyzed Mizoroki-Heck reaction, the hydrogenation of an alkene, the hydrogenolysis of nitrobenzene, the hydrosilylation of an α,β-unsaturated ketone, and the C-H bond functionalization reactions of thiophenes and indoles achieved a quantitative production with high reusability. The catalytic activity reached several hundred-mol ppb of palladium, reaching a TON of 2 000 000.

Palladium‐Based Nanomaterials: A Platform to Produce Reactive Oxygen Species for Catalyzing Oxidation Reactions

“…[ 12,17,18,88,89 ] Other than homogeneous Pd catalysts, Pd nanomaterials with well-defi ned shapes and surface structures have shown high effi ciency and can be easily recycled for long-term use. As discussed in the last section, Pd-based nanomaterials exhibit unique properties in oxygen activation.…”

Development of a Sulfur-Modified Glass-Supported Pd Nanoparticle Catalyst for Suzuki–Miyaura Coupling

“…For this reason, considerable research efforts have been directed towards the development of new nanosized catalysts, which have been immobilized on a variety of different solid materials, including metals, as well as several silicon and polymer based supports. [9][10][11][12][13][14][15][16] We previously reported the development of a sulfur-modified Au-supported Pd material (SAPd), which had PdNPs immobilized on its surface. Furthermore, we investigated the application of this material as a catalyst to a variety of different reactions, including the Suzuki-Miyaura, Buchwald-Hartwig amination, carbon (sp 3 and sp 2 )-hydrogen bond activation, double carbonylation, and allyl cleavage reactions.…”

Catalytic Activity of Silicon Nanowires Decorated with Gold and Copper Nanoparticles Deposited by Pulsed Laser Ablation

“…In the last decade, several nanoscale metals have been anchored on SiNWs for catalytic purposes (Au [22,23], Ag [24,25,26], Pd [27,28,29,30], Pt [31,32], Cu [33,34] etc.). Decoration by chemical reduction has been frequently employed, with applications mainly in the degradation of dyes and pollutants [22,24,25,26,27,28,29,30,31,33], but also in cross-coupling reactions [3,27,28,34].…”

“…Decoration by chemical reduction has been frequently employed, with applications mainly in the degradation of dyes and pollutants [22,24,25,26,27,28,29,30,31,33], but also in cross-coupling reactions [3,27,28,34]. …”