摘要：Supported gold (Au) nanocatalysts have long played an important role in numerous heterogeneous catalysis. However, the dominant difficulty of poor thermodynamic stability hampers its practical application. Herein, a core-shell structured Au nanocatalyst with Au nanoparticles (NPs) confined in boron nitride (BN) shells is proposed for enhanced thermodynamic stability. The two-dimensional porous structure of BN not only functions as a physical separator for the sintering resistance of Au NPs, but also provides a microchannel for catalytic reaction substrates. Besides, owing to the confinement effect, a strengthened interaction between well-designed Au NPs and the BN can be expected, which further boosts the stability and catalytic activity. Detailed experiments show that a proper BN shell thickness is important to maintain the balance between the sintering resistance and catalytic activity. A significantly boosted performance of 97.2% conversion in oxidative desulfurization (ODS) was obtained with a proper number of BN coating layers, outperforming the one with a thicker BN shell. Moreover, the recyclability of the prepared catalyst was investigated with no obvious decrease in catalytic performance after 10 runs, greatly higher than that without a BN shell, suggesting excellent durability.

关键字：oxidative desulfurization; core-shell; boron nitride; Au nanocatalyst; confinement effect

ISSN号：1998-0124

卷、期、页：卷16期10：12076-12083特刊SI

发表日期：2022-11-01

影响因子：8.897000

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,CSCD（中国科技引文期刊）（核心）,CSTPCD（中国科技核心期刊）（统计源期刊）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：NANO RESEARCH

参与作者：Lu, Linjie,He, Jing,Wu, Peiwen,Sun, Yang,Hua, Mingqing,Cui, Peng,Li, Huaming

第一作者：朱文帅,刘植昌,徐春明

论文类型：期刊论文

论文概要：Lu, Linjie,He, Jing,Wu, Peiwen,Sun, Yang,Hua, Mingqing,Cui, Peng,朱文帅,Li, Huaming,刘植昌,徐春明，Stable Au nanoparticles confined in boron nitride shells for optimizing oxidative desulfurization，NANO RESEARCH，2022，卷16期10：12076-12083特刊SI

论文题目：Stable Au nanoparticles confined in boron nitride shells for optimizing oxidative desulfurization