Stable Au nanoparticles confined in boron nitride shells for optimizing oxidative desulfurization

作     者：Linjie Lu Jing He Peiwen Wu Yang Sun Mingqing Hua Peng Cui Wenshuai Zhu Huaming Li Zhichang Liu Chunming Xu Linjie Lu;Jing He;Peiwen Wu;Yang Sun;Mingqing Hua;Peng Cui;Wenshuai Zhu;Huaming Li;Zhichang Liu;Chunming Xu

作者机构：School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China College of Chemical Engineering and EnvironmentState Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(Beijing)Beijing 102249China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第10期

页      面：12076-12083页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(Nos.22178154 and 22008094) Science Foundation of China University of Petroleum(Beijing)(No.ZX20220044) the Natural Science Foundation of Jiangsu Province(No.BK20190852) the Natural Science Foundation for Jiangsu Colleges and Universities(No.19KJB530005) 

主　　题：oxidative desulfurization core–shell boron nitride Au nanocatalyst confinement effect 

摘      要：Supported gold(Au)nanocatalysts have long played an important role in numerous heterogeneous ***,the dominant difficulty of poor thermodynamic stability hampers its practical ***,a core–shell structured Au nanocatalyst with Au nanoparticles(NPs)confined in boron nitride(BN)shells is proposed for enhanced thermodynamic *** 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 ***,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 *** 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 ***,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.