Spin state-tailored tetrahedral and octahedral cobalt centers on millimetric Co-Al oxide catalysts as dual sites for synergistic peroxymonosulfate activation

Yang, Jia-Cheng E.; Zhu, Min-Ping; Guan, Daqin; Yuan, Baoling; Sun, Darren Delai; Sun, Chenghua; Fu, Ming-Lai

doi:10.1016/j.apcatb.2023.123466

Cited by 4 publications

(1 citation statement)

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“…Thus, it is obvious that in order to establish scientifically grounded approaches to select the most effective, economical, environmentally feasible and technically viable methods to intensify biomass processing into valuable chemical products, it is necessary to conduct systematic studies. This is particularly relevant to the choice of catalyst, also taking into account issues related to its deactivation [40][41][42][43][44][45][46][47] and, accordingly, the choice of its operating conditions. Therefore, the aim of this work is to elucidate the catalyst characteristics that determine its efficiency in the oxidative cleavage process of 9,10-dihydroxystearic acid.…”

Section: Introductionmentioning

confidence: 99%

Oxidative Cleavage of 9,10-Dihydroxystearic Acid on Supported Au, Pd and PdAu Nanoparticle-Based Catalysts

German,

Turyanskiy,

Schroeder

et al. 2024

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The oxidative C-C cleavage of a C18 substrate is an important transformation in synthetic organic chemistry, facilitating the synthesis of valuable C8-C9 acids widely used in many industries. Through a comparative analysis of the catalytic and physicochemical properties of catalysts, comprising mono- (Pd or Au) and bimetallic (PdAu) nanoparticles deposited on oxides, oxyhydroxides and graphite-like carbon material Sibunit (Cp), it was shown that the efficiency of the catalyst in the oxidative cleavage of 9,10-dihydroxystearic acid relies on the nature of the active component, the support and the average size of metal nanoparticles (NPs). The dependency of 9,10-DSA conversion on the average size of metal NPs shows the structural sensitivity of the oxidative cleavage reaction. Notably, catalysts with an average size of gold particles less than 3 nm exhibit the highest activity. The nature of the active component and the support material are crucial factors determining the process selectivity. Among the catalysts studied, the most effective for the oxidative cleavage of 9,10-DSA is a material based on Au NPs deposited on Cp.

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