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| 1 | Al2O3 supported hybrid Pd-CeO2 colloidal spheres and its enhanced catalytic performances for methane combustion显示文摘Fabrication of novel nano-catalyst with improved activity and stability has been a hot topic in heterogeneous catalysis. Herein a novel approach was designed to synthesize Pd-CeO2 colloidal assembled spheres(CASs) in one-pot fashion. The Pd clusters were encompassed by the CeO2 nanocrystals with a high dispersity. Based on this hybrid structure, the Pd/ceria interface area can be greatly improved. After Pd-CeO2 CASs was supported on γ-Al2O3, its catalytic activity for CH4 combustion was evaluated. The result shows that Al2O3 supported Pd-CeO2 CASs exhibits an improved catalytic activity and stability,compared to the Pd/CeO2 catalyst prepared by impregnation method. The results of several characterization techniques indicate that the enhanced catalytic activity of Al2O3 supported Pd-CeO2 CASs can be attributed to the more interfacial Pd-O-Ce species and the more surface active oxygen species. | Xinwei Yang Chenhao Du Yanglong Guo Yun Guo Li Wang Yunsong Wang Wangcheng Zhan | 2019 | Journal of Rare Earths2019，37，7： | 2 |
| 2 | Catalytic wet oxidation of N,N-dimethyl formamide over ruthenium supported on CeO_2 and Ce_(0.7)Zr_(0.3)O_2 catalysts显示文摘A series of Ru supported on CeO_2 and Ce_(0.7)Zr_(0.3)O_2(CeZrO) was prepared by incipient-wet impregnation method and investigated in the catalytic wet oxidation of N,N-dimethyl formamide(DMF) in batch reactor. The physicochemical property of the catalysts was characterized by Brunauer-Emmett-Teller(BET), X-ray diffraction(XRD), H_2 temperature-programmed reduction(H_2-TPR), X-ray photoelectron spectroscopy(XPS) and thermogravimetry(TG). Compared with 3%Ru/CeO_2, 3%Ru/Ce_(0.7)Zr_(0.3)O_2 catalyst exhibits much higher performance for DMF degradation due to the promotion of Ru dispersion and the transfer of active oxygen, and 99% DMF conversion and 97% COD elimination are obtained at 453 K,2.5 MPa oxygen pressure after 5 h. The reaction mechanism of DMF degradation was suggested. The carbonaceous species deposition and oxidation of Ru can be responsible for catalyst deactivation. And the catalyst activity can be recovered by air calcination and H_2 reduction. | Jiawen Gong Dongzhi Li Li Wang Wangcheng Zhan Yanglong Guo Yunsong Wang Yun Guo | 2019 | Journal of Rare Earths2019，37，3： | 2 |
| 3 | Understanding the role of tungsten on Pt/CeO_(2)for vinyl chloride catalytic combustion显示文摘Spherical CeO_(2)synthesized by the hydrothermal process was used as support to prepare Pt/WO_(3)/CeO_(2),and the effects of tungsten(W)contents on activity,stability and polychlorinated by-products were investigated to understand the role of W for vinyl chloride(VC)catalytic oxidation.The introduction of12 wt%W to Pt/CeO_(2)(P12 WC)exhibits the highest catalytic activity with 90%conversion of VC at 250℃,meanwhile the stability improves and the polychlorinated by-products in the tail gas significantly decrease due to the removal of dissociated Cl species in the formation of HCl.The beneficial effects of W on Pt/CeO_(2)are closely related to the chemical state of Pt,redox and surface acid sites distribution.The doped W not only makes Pt disperse evenly on the support with the high valence,but also weakens the interaction between Pt and CeO_(2)by the formation of Pt-O-W and Pt-O-W-O-Ce species,which facilitates oxygen mobility.In addition,the modification of W species also significantly increases the surface acidity amount and changes the distribution of acid sites. | Qifeng Zhang Zhengbo Zhou Tian Fang Han Gu Yanglong Guo Wangcheng Zhan Yun Guo Li Wang | 2022 | Journal of Rare Earths2022，40，9： | 2 |
| 4 | A novel support of MCM-48 molecular sieve for immobilization of penicillin G acylase显示文摘 | Xue Ping Lu Guanzhang Guo Yanglong | 2004 | Journal of Molecular Catalysis B: Enzymatic2004，30，： | 1 |
| 5 | Vapor phase dehydrogenation of methanol to methyl formate in the catalytic membrane reactor with Cu/SiO2/ceramic composite membrane显示文摘 | Guo Yanglong Lu Guanzhong Mo Xunhua | | 0，，1： | 1 |
| 6 | Realization approach of Pd-only three-way catalysts with high catalytic performance and thermal stability显示文摘Pd-only three-way catalyst(TWC),Pd supported on washcoating(the mixture of alumina and Ce-Zr solid solution)/cordierite,was prepared and its catalytic performance and the operation window(λ-value)at 450°C were evaluated with the simulated automotive exhaust feed gas.Surfactants such as Tween-80 and Span-20 were added in the process of preparing the catalyst in order to improve the thermal stability and catalytic performance of Pd-only TWC.The fresh and aged catalysts at 1000°C for4 h were characterized by low-temperature N2 adsorption,XRD,XPS,and H2-TPR techniques.The results show that the presence of surfactants in the synthesis slurry could influence the physicochemical properties of the final Pd-only TWC.The FTS catalyst prepared with the mixed surfactant of Tween-80 and Span-20 exhibited excellent three-way catalytic performance.After being aged at 1000°C for 4 h,the catalytic performances of Pd-only TWCs slightly decreased,but the FTS catalyst still demonstrated higher catalytic performance and better thermal stability compared with the Pd-only catalysts prepared with single surfactant or without any surfactant.And the FTS catalyst has a widerλvalue(operation window)than other catalysts,even after being aged at 1000°C. | Yutao Ren Qun Shen Yun Guo Yanqin Wang Yanglong Guo Xueqing Gong Guanzhong Lu | 2015 | Science China Chemistry2015，58，1： | 1 |
| 7 | Preparation properties of a γ-Al2O3 washcoat deposited on a ceramic honeycomb显示文摘 | Jiang Pingping Lu Guanzhong Guo Yanglong | 2005 | Surface & Coatings Technology2005，190，23： | 1 |
| 8 | LaMnO3 perovskite oxides prepared by different methods for catalytic oxidation of toluene显示文摘 | ZHANG Chuanhui GUO Yanglong GUO Yun | 2014 | Applied Catalysis B: Environmental2014，，： | 1 |
| 9 | Effect of pretreatment on properties of TS-1/diatomite catalyst for hydroxylation of phenol by H2O2 in fixed-bed reactor 显示文摘 | LIU Hong LU Guanzhong GUO Yanglong | 2004 | Catalysis Today2004，93，： | 1 |
| 10 | Synthesis of framework-substituted Fe-HMS and its catalytic performance for phenol hydroxylation显示文摘 | Hong Liu Guanzhong Lu Yanglong Guo | 2006 | Nanotechnology2006，，17： | 1 |
| 11 | A novel support of MCM-48 molecular sieve for immobi- lization of penicillin G acylase显示文摘 | XUE Ping LU Guanzhong GUO Yanglong | 2004 | Journal of Molecular Catalysis B: Enzymatic2004，30，2： | 1 |
| 12 | A novelCe-AlPO5catalystforsolvent-freeliquidphaseoxidationofcy-clohexanebyoxygen显示文摘 | ZhaoRui Wang Yanqin Guo Yanglong etal | 2006 | GreenChem2006，8，5： | 1 |
| 13 | Synthesis of Lanthanum-doped MCM-48 molecular sieves and its catalytic performance for the oxidation of styrene显示文摘 | Zhan Wangcheng Guo Yanglong Wang Yanqin | 2007 | J Phys Chem B2007，111，12： | 1 |
| 14 | Epoxidation of propylene by molecular oxygen over modified Ag-MoO3 catalyst 显示文摘 | Jin Guojie Lu Guanzhong Guo Yanglong Guo Yun Wang Junsong Liu Xiaohui | 2003 | Catalysis Letters2003，87，34： | 1 |
| 15 | Deactivation and regeneration of TS-1/diatomite catalyst for hydroxylation of phenol in fixed-bed reactor 显示文摘 | Liu Hong Lu Guanzhong Guo Yanglong | 2005 | Chemical Engineering Journal2005，108，3： | 1 |
| 16 | A novel sup- port of MCM-48 molecular sieve for immobilization of penicillin G acylase显示文摘 | XUE Ping LU Guanzhong GUO Yanglong | 2004 | Journal of molecular catalysis B: Enzymatic2004，30，2： | 1 |
| 17 | A novel support of MCM-48 molecular sieve for immobilization of penicillin G acylase显示文摘 | Ping Xue Guanzhong Lu Yanglong Guo | 2004 | Journal of Molecular Catalysis B:Enzymatic2004，30，2： | 1 |
| 18 | Immobi- lized penicillin G acylase on mesoporous silica: the influence of pore size, pore volume and mesophases显示文摘 | L~ Yongjun GUO Yanglong WANG Yanqin | 2008 | Microporous and mesoporous materials2008，1，13： | 1 |
| 19 | Pd catalyst supported on activated carbon honeycomb monolith for CO oxidation and the application in air purification of vehicular tunnel显示文摘 | Li Wang Yanhui Zhang Yang Lou Yanglong Guo Guanzhong Lu Yun Guo | 2014 | Fuel Processing Technology2014，，： | 1 |
| 20 | Effect of preparation condition on performance of Ag–MoO 3 /ZrO 2 catalyst for direct epoxidation of propylene by molecular oxygen显示文摘 | Guojie Jin Guanzhong Lu Yanglong Guo Yun Guo Junsong Wang Weiying Kong Xiaohui Liu | 2005 | A, Chemical2005，，1： | 1 |
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