An oxygen-assisted conversion of butanol to value-added products on nanocarbon catalysts: tuning product selectivity <i>via</i> nitrogen doping

Dai, Xueya; Li, Fan; Wang, Di; Guo, Miao; Bai, Yaocai; Qi, Wei

doi:10.1039/d2cy02075k

Catal. Sci. Technol.

2023

DOI: 10.1039/d2cy02075k

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An oxygen-assisted conversion of butanol to value-added products on nanocarbon catalysts: tuning product selectivity via nitrogen doping

Xueya Dai

Fan Li

Di Wang

et al.

Abstract: n-Butanol (nB) dehydrogenation to butyr aldehyde or dehydration to butene are important high-value-added industrial processes for refinery of biomass resources. The present work reported the activity, mechanistic and kinetic analysis...

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Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube

Zhang,

Dai,

Xie

et al. 2024

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Borocarbonitride (BCN) catalysts, boasting multiple redox sites, have shown considerable potential in alkane oxidative dehydrogenation (ODH) to olefin molecules. However, their catalytic efficiency still lags behind that of leading commercial catalysts, primarily due to the limited reactivity of oxygen functional groups. In this study, a groundbreaking hybrid catalyst is developed, featuring BCN nanotubes (BCNNTs) encapsulated with manganese (Mn) clusters, crafted through a meticulous supramolecular self‐assembly and postcalcination strategy. This novel catalyst demonstrates a remarkable enhancement in activity, achieving 30% conversion and ≈100% selectivity toward styrene in ethylbenzene ODH reactions. Notably, its performance surpasses both pure BCNNTs and those hosting Mn nanoparticles. Structural and kinetic analyses unveil a robust interaction between BCNNTs and the Mn component, substantially boosting the catalytic activity of BCNNTs. Furthermore, density functional theory (DFT) calculations elucidate that BCNNTs encapsulated with Mn clusters not only stabilize key intermediates (─B─O─O─B─) but also enhance the nucleophilicity of active sites through electron transfer from the Mn cluster to the BCNNTs. This electron transfer mechanism effectively lowers the energy barrier for ─C─H cleavage, resulting in a 13% improvement in catalytic activity compared to pure BCNNTs.

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Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube

Zhang,

Dai,

Xie

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

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An oxygen-assisted conversion of butanol to value-added products on nanocarbon catalysts: tuning product selectivity via nitrogen doping

Abstract: n-Butanol (nB) dehydrogenation to butyr aldehyde or dehydration to butene are important high-value-added industrial processes for refinery of biomass resources. The present work reported the activity, mechanistic and kinetic analysis...

Cited by 1 publication

References 38 publications

Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube

Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube

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