A novel 3D printed technology to construct a monolithic ultrathin nanosheets Co_(3)O_(4)/SiO_(2) catalyst for benzene catalytic combustion  

作　　者：Yuntai Xi Fang Dong Xin Xu Shixing Wu Zhicheng Tang Jiyi Zhang 

机构地区：[1]State Key Laboratory for Oxo Synthesis and Selective Oxidation,National Engineering Research Center for Fine Petrochemical Intermediates,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]School of Petroleum and Chemical,Lanzhou University of Technology,Lanzhou 730050,China [3]Dalian National Laboratory for Clean Energy,Dalian 116023,China [4]Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region,School of Chemistry and Chemical Engineering,Shihezi University,Shihezi 832003,China

出　　处：《Nano Research》2023年第10期12173-12185,共13页纳米研究（英文版）

基　　金：the LICP Cooperation Foundation for Young Scholars(No.HZJJ21-02);the National Natural Science Foundation of China(Nos.52070182 and 51908535);the DNL Cooperation Found,Chinese Academy of Sciences(No.DNL202004);Province Natural Science Foundation of GanSu(Nos.20JR10RA053 and 20JR10RA046);Major Program of the Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences(No.ZYFZFX-10).

摘　　要：In this study,a novel three-dimensional(3D)-OMm-Co_(3)O_(4)/SiO_(2)-0.5AP(OMm=ordered macro–meso porous,AP=aluminum phosphate)monolithic catalyst was for the first time constructed successfully with the hierarchical Co-phyllosilicate ultrathin nanosheets growth on the surface of 3D printed ordered macropore–mesoporous SiO_(2)support.On the one hand,we discovered that the construction of ordered macropore–mesoporous structures is beneficial to the diffusion and adsorption of reactants,intermediates,and products.On the other hand,the formation of hierarchical Co-phyllosilicate ultrathin nanosheets could provide more active Co&+species,abundant acid sites,and active oxygen.The above factors are in favor of improving the catalytic performance of benzene oxidation,and then a 3D-OMm-Co_(3)O_(4)/SiO_(2)-0.5AP catalyst exhibited the superior catalytic activity.To explore the effect of catalysts structure and morphology,various Co-based catalysts were also constructed.Simultaneously,the 3D-OMm-Co_(3)O_(4)/SiO_(2)-0.5AP catalyst has excellent catalytic performance,water resistance,and thermal stability in the catalytic combustion of benzene due to the strong interactions between Co&+species and SiO_(2)in the phyllosilicate.Therefore,this study proposes a new catalyst synthesis method through 3D printing,and presents considerable prospects for the removal of VOCs from industrial applications.

关 键 词：Co-phyllosilicate three-dimensional(3D)printing ordered porous volatile organic compounds(VOCs) catalytic oxidation 

分 类 号：O64[理学—物理化学]