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| 1 | Mechanism of chain propagation for the synthesis of polyoxymethylene dimethyl ethers显示文摘Polyoxymethylene dimethyl ethers(PODE)were synthesized from the reaction of paraformaldehyde with dimethoxymethane(DMM)over different acid catalysts at different conditions.Products were found to follow the Schulz-Flory distribution law.The chain propagation proceeds through the insertion of an individual segment of CH2O one by one,while the simultaneous insertion of a few CH2O segments or their assembly is unlikely.Due to the restriction of this law,it is difficult to increase the selectivity to the desired products(e.g.,PODE3 4). | Yupei Zhao Zheng Xu Hui Chen Yuchuan Fu Jianyi Shen | 2013 | Journal of Energy Chemistry2013，22，6： | 36 |
| 2 | Effect of loading on the Ni_2P/Al_2O_3 catalysts for the hydrotreating reactions显示文摘The 80%Ni2P/Al2O3 catalysts were prepared by the phosphidation of corresponding 80%Ni/Al2O3 with triphenylphosphine in liquid phase and compared with the 60%Ni2P/Al2O3 for hydrotreating reactions. Both the60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 in comparison exhibited the small and uniform Ni2 P particles(6.3 and8.4 nm,respectively),high CO uptakes(305 and 345 μmol/g,respectively) and thus high activities for the hydrotreating reactions. After the hydrotreating reactions,the small and uniform Ni2 P particles were remained,although the CO uptakes on the used 60%Ni2P/Al2O3 and 80%Ni2P/Al2O3 were greatly decreased(to 68 and95 μmol/g,respectively) due to the incorporation of S into the Ni2 P surfaces. The 80%Ni2P/Al2O3 was found to be significantly more active than the 60%Ni2P/Al2O3 due to that the 80%Ni2P/Al2O3 possessed more,and more active Ni2 P sites than the 60%Ni2P/Al2O3,probably due to the less S incorporated in the 80%Ni2P/Al2O3 than in the 60%Ni2P/Al2O3 during the hydrotreating reactions. | Junen Wang Shaozhong Li Jun Xu Hui Chen Jiangyu Yuan Jianyi Shen | 2015 | Journal of Energy Chemistry2015，24，4： | 4 |
| 3 | Optimization of MgO/Al_2O_3 ratio for the maximization of active site densities in the Ni_2P/MgAlO catalysts for the hydrotreating reactions显示文摘The Ni_2P/MgAlO catalysts with different MgO/Al_2O_3 ratios were prepared by the phosphidation of corresponding Ni/Mg Al O catalysts with triphenylphosphine in liquid phase.It was found that the MgO/Al_2O_3 ratio affected the Ni_2P/MgAlO catalysts significantly.The Ni_2P/Mg Al O catalyst with the MgO/Al_2O_3 ratio of 3(w/w) exhibited the highly dispersed Ni_2 P particles(~9 nm) with the highest CO uptake(344 μmol/g)and thus the highest activities for the hydrotreating reactions.However,based on the CO uptakes on the used catalysts,the TOF values for the hydrodesulphurization of dibenzothiophene as well as those for the hydrogenation of tetralin on all the Ni_2P/MgAlO catalysts were respectively similar,indicating that the MgO/Al_2O_3 ratio did not affect the intrinsic activities of Ni_2 P supported on the MgAlO support for the hydrotreating reactions. | Junen Wang Xiaogan Wang Yamei Yuan Abdalla Shuaib Jianyi Shen | 2016 | Journal of Energy Chemistry2016，25，4： | 3 |
| 4 | Preparation of Fe_2P/Al_2O_3 and FeP/Al_2O_3 catalysts for the hydrotreating reactions显示文摘A 60%Fe/Al_2O_3 catalyst was prepared by the co-precipitation method.It was reduced by H_2 to produce metallic Fe,which was then sulfided by CS_2 to Fe_(0.96) S and Fe_3S_4 or phosphided by triphenylphosphine(PPh3) in liquid phases to Fe2 P and Fe P.It was found that the iron sulfides(Fe0.96 S and Fe_3S_4) exhibited the low activity for the hydrodesulfurization(HDS) reactions.The HDS activity was also low on the Fe(metal)/Al_2O_3 and Fe_2 P/Al_2O_3 catalysts since they were converted into Fe0.96 S and Fe_3S_4 during the HDS reactions.In contrast,the FeP/Al_2O_3 was found to be stable and active for the HDS reactions.In particular,Fe P/Al_2O_3 possessed significantly smaller Fe P particles than Fe P/C,leading to the significant higher HDS activity of FeP/Al_2O_3 than Fe P/C. | Yamei Yuan Jiayou Zhang Hui Chen Qiumei Hou Jianyi Shen | 2019 | Journal of Energy Chemistry2019，28，2： | 2 |
| 5 | Photocatalytic degradation of dodecyl-benzenesulfonate over TiO2-Cu2O under visible irradiation显示文摘 | Han Chenghui Li Zhiyu Shen Jianyi | 2009 | Journal of Hazardous Materials2009，168，： | 1 |
| 6 | New synthesis method for nickel phosph ide nanoparticles: solid phase reaction of nickel cations with hyp ophosphites显示文摘 | Shi Guojun Shen Jianyi | 2009 | Journal of Materials Chemistry2009，19，16： | 1 |
| 7 | Grinding characteristics in high speed grinding of engineering ceramics with brazed diamond wheels显示文摘 | Jianyi Chen Jianyun Shen Hui Huang Xipeng Xu | 2011 | Journal of Materials Processing Technology2011，210，6： | 1 |
| 8 | Thermal decomposition of dimethoxymethane and dimethyl carbonate catalyzed by solid acids and bases 显示文摘 | Fu Yuchuan Zhu Haiyan Shen Jianyi | 2005 | Thermochimica Acta2005，434，12： | 1 |
| 9 | Preparation of a novel sulfonated carbon catalyst for the etherification of isopentene with methanol to produce tert -amyl methyl ether显示文摘 | Yu Zhao Hezhi Wang Yupei Zhao Jianyi Shen | 2010 | Catalysis Communications2010，，9： | 1 |
| 10 | Microcalorimetric adsorption stud- ies of highly loaded Co-ZrO2/SiO2 catalysts for Fischer- Tropsch synthesis 显示文摘 | Chen Liang Shen Jianyi | 2011 | Journal of Catalysis2011，279，2： | 1 |
| 11 | A study on reduction behaviors of the supported platinum iron catalysts 显示文摘 | Jia Jifei Shen Jianyi Lin Liwu | 1999 | Journal of Molecular Catalysis A1999，138，： | 1 |
| 12 | Preparation and characterization of Fe/MgO catalysts obtained from hydrotalcite-like compounds 显示文摘 | JianYi Shen Bing Guang Mai Tu | 1996 | Catalysis Today1996，30，： | 1 |
| 13 | Thermal Decomposition of Dimethoxymethane and Dimethyl Carbonate Catalyzed by SolidAcids and Bases显示文摘 | Fu Yuchuan Zhu Haiyan Shen Jianyi | | 0，，1： | 1 |
| 14 | Nature of surface sites of V 2 O 5 – TiO 2 / SO 4 2 - </mml:msubsup> catalysts and reactivity in selective oxidation of methanol to dimethoxymethane显示文摘 | Hongying Zhao Simona Bennici Jianyi Shen Aline Auroux | 2010 | Journal of Catalysis2010，，1： | 1 |
| 15 | TiO 2 nanotubes supported V 2 O 5 for the selective oxidation of methanol to dimethoxymethane显示文摘 | Jingwei Liu Yuchuan Fu Qing Sun Jianyi Shen | 2008 | Microporous and Mesoporous Materials2008，，1： | 1 |
| 16 | Skeletal isomerization of 1-Hexene over sulfided Co/Co-MCM-41 catalysts显示文摘 | Shi Guojun Shen Jianyi | 2009 | Energy and Fuels2009，23，： | 1 |
| 17 | Photocatalytic degradation of dodecyl-benzenesulfonate over TiO2- Cu2O under visible irradiation 显示文摘 | Han Chenghui Li Zhiyu Shen Jianyi | 2009 | J Hazard Mater2009，168，1： | 1 |
| 18 | Catalytic Performanceof Silica-Supported Chromium Oxide Catalysts in Ethane Dehy- drogenation with Carbon Dioxide 显示文摘 | Ge Xin Zhu Mingming Shen Jianyi | 2002 | React Kinet Catal Lett2002，77，1： | 1 |
| 19 | Simulating Evolution of a Loess Gully Head with Cellular Automata显示文摘This paper presents a new method for simulating the evolution of a gully head in a loess catchment with cellular automata(CA) based on the Fisher discriminant. The experimental site is an indoor loess catchment that was constructed in a fixed-intensity rainfall erosion test facility. Nine high-resolution digital elevation model(DEM) data sets were gathered by close range photogrammetry during different phases of the experiment. To simulate the evolution of the catchment gully head, we assumed the following. First, the 5th and 6th DEM data sets were used as a data source for acquiring the location of the catchment gully head and for obtaining spatial variables with GIS spatial analysis tools. Second, the Fisher discriminant was used to calculate the weight of the spatial variables to determine the transition probabilities. Third, CA model was structured to simulate the evolution of the gully head by iterative looping. The status of the cell in the CA models was dynamically updated at the end of each loop to obtain realistic results. Finally, the nearest neighbor, G-function, K-function, Moran′s I and fractal indexes were used to evaluate the model results. Overall, the CA model can be used to simulate the evolution of a loess gully head. The experiment demonstrated the advantages of the CA model which can simulate the dynamic evolution of gully head evolution in a catchment. | LIU Xiaojing TANG Guo'an YANG Jianyi SHEN Zhou PAN Ting | 2015 | Chinese Geographical Science2015，25，6： | 1 |
| 20 | Characterization and Catalytic Activities of Al2O3-Promoted Sulfated Tin Oxides显示文摘 | Jie Zhao Yinghong Yue Dewei Zhai Changxi Miao Jianyi Shen Heyong He Weiming Hua Zi Gao | 2009 | Catalysis Letters (-)2009，，1： | 1 |
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