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26篇 您的检索式:作者名="Chunshan Yang"
    题名 作者 年代 出处 被引量
1One-pot synthesis of the highly efficient bifunctional Ni-SAPO-11 catalyst显示文摘Hydro isomerization of linear alkanes to branched isomers is an important petrochemical process for production of gasoline with high octane number.Non-noble metal bifunctional catalysts used in this process always suffer from low metal dispersion and poor metal-acid synergy.Herein,a facile one-pot synthesis method was used to simultaneously regulate metal particle sizes and acidity of the Ni-SAPO-11 hydroisomerization catalyst.The physicochemical properties are investigated using XANES,EXAFS,TEM/STEM,FT-IR,XPS,UV-vis and NH_3-TPD.Apart from the highly dispersed nickel nanoparticles with an average diameter of 8 nm,the framework Ni~(2+)ions are generated via substituting framework Al~(3+)ions of the SAPO-11.The formed NiP-OH structures have lower deprotonation energy(DPE)than the SiAl-OH ones,contributing more and stronger acid sites to the Ni-SAPO-11 catalyst.The great metal-acid synergy including high metal to acid sites ratio(n_(Ni)/n_A)and close intimacy is obtained for the Ni-SAPO-11 catalyst.The Ni-SAPO-11 catalyst outperforms the counterpart prepared by the impregnation method and exhibits comparable activity and isomers selectivity to the Pt/SAPO-11 catalyst in the n-hexane hydroisomerization.Yuchao Lyu Weilong Zhan Zhumo Yu Xinmei Liu Ye Yang Xiaoxing Wang Chunshan Song Zifeng Yan 2021Journal of Materials Science & Technology2021,,17:4
2Silver modified Cu/SiO2 catalyst for the hydrogenation of methyl acetate to ethanol显示文摘A series of silver modified Cu/SiO2 catalysts were synthesized with ammonia-evaporation method and applied in vapor-phase hydrogenation of methyl acetate to ethanol.The influence of additive‘Ag’on the structural evolution of catalyst was systematically studied by several characterization techniques,such as N2 adsorption–desorption,N2O titration,PXRD,FTIR,in-situ FTIR,H2-TPR,H2-TPD,XPS and TEM.Results showed that incorporation of a small amount of Ag could enhance the structural stability,and the strong interaction between Cu and Ag species was conducive to increase the dispersion of copper species and create a suitable Cu+/(Cu0+Cu+)ratio,which was proposed to be responsible for the improved catalytic activity.The maximum conversion of MA(94.1%)and selectivity of ethanol(91.3%)over optimized Cu-0.5 Ag/SiO2 and 120 h on stream without deactivation under optimal conditions demonstrates its excellent stability.Zhiheng Ren Muhammad Naeem Younis Hui Zhao Chunshan Li Xiangui Yang Erqiang Wang Gongying Wang 2020Chinese Journal of Chemical Engineering2020,28,6:4
3The Genetic Diversity Study of Wild Wusuli Raccoon Dog From Nenjiang District显示文摘The ISSR method was developed to analyze the genetic diversity of 20 wild Wusuli raccoon dog from Nenjiang district. The results showed that there were significant genetic diversity and high polymorphism among individuals of the wild Wusuli raccoon dog. A total of 41 DNA bands were amplified by 9 primers, and 37 of them were polymorphism, the proportion of polymorphism was 90.24%, 2-8 polymorphism bands could be amplified by each primer, and 4.56 on average, the length of the product was 200-2 000 bp.YANG Chunshan BAI Xiujuan 2008Journal of Northeast Agricultural University(English Edition)2008,15,3:3
4CO2 capture over molecular basket sorbents:Effects of SiO2 supports and PEG additive显示文摘The objective of this work is to study the influences of silica supports and PEG additive on the sorption performance of molecular basket sorbent(MBS) for CO_2 capture consisting of polyethylenimine and one of the following supports: SBA-15(2-D structure), TUD-1(3-D sponge-like structure) and fumed silica HS-5(3-D disordered structure). Effects of the supports regarding pore structures and pore properties, the PEI loading amount as well as the sorption temperature were examined. Furthermore, polyethylene glycol(PEG) was introduced as an additive into the sorbents and its effect was investigated at different PEI loadings and sorption temperatures. The results suggest that the pore properties of MBS(after PEI loading) play a more important role in the CO_2 sorption capacity, rather than those of the supports alone.MBS with 3D pore structure exhibits higher CO_2 sorption capacity and amine efficiency than those with 2D-structured support. Among the sorbents studied, fumed silica(HS-5) based MBS showed the highest CO_2 sorption capacity in the temperature range of 30-95 °C, probably due to its unique interstitial pores formed by the aggregation of polymer-loaded SiO_2 particles. It was found that the temperature dependence is directly related to the PEI surface coverage layers. The more PEI surface coverage layers, the higher diffusion barrier for CO_2 and the stronger temperature dependence of CO_2 capacity. 3D MBS exceeds 2D MBS at the same PEI coverage layers due to lower diffusion barrier. Adding PEG can significantly enhance the CO_2 sorption capacity and improve amine efficiency of all MBS, most likely by alleviating the diffusion barrier within PEI bulk layers through the inter-molecular interaction between PEI and PEG.Lin Zhang Xiaoxing Wang Mamoru Fujii Linjun Yang Chunshan Song 2017Journal of Energy Chemistry2017,26,5:3
5Network Coding Based Reliable Disjoint and Braided Multipath Routing for Sensor Networks 显示文摘Yang Yuwang Zhong Chunshan Sun Yamin 2010Journal of Network and Computer Applications2010,33,4:1
6Network coding based reliable disjoint and braided multipath routing for sensor networks显示文摘YANG YUWANG ZHONG CHUNSHAN SUN YAMIN 2010Journal of Network and Computer Applications2010,33,4:1
7Caleulaion Methods of Eloctromagnetie Fields Very Close to Lighming显示文摘Chunshan Yang Bihua Zhou 2004IEEE transations on elecuomagnetie com- patibility2004,46,1:1
8Selection of Reasonable Scheme of Entering into a Working Well in Shield Construction 显示文摘YANG Chunshan MO Haihong CHEN Junsheng 2013Electronic Journal of Geotechnical Engineering2013,18,:1
9Numerical Study on Material Optimization of the Composite Lining of Shield Tunneling显示文摘YANG Chunshan MO Haihong CHEN Junsheng 2013Electronic Journal of Geotechnical Engineering2013,18,:1
10A simple strategy to synthesize and characterization of zirconium modified PCs/γ–Al_2O_3显示文摘Crystalline phase is the key factor for catalyst activity. The zirconium modified PCs/γ-Al_2O_3 samples were prepared through a simple step incipient-wetness impregnation method. The raw materials and samples were characterized by thermogravimetric-differential analysis(TG-DTA), X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), temperature-programmed desorption of ammonia and carbon dioxide(NH_3-and CO_2-TPD). The effects of calcination temperature and zirconium content on structure, chemical transformation,and acidity-basicity were investigated. Calcination temperature exhibited the major effect on the crystalline phase of samples. The new phase of Al0.1Zr_(0.9)O_(1.95) was exhibited which was above 650 ℃. In addition, zirconium content was influenced by the acidic and basic properties of the surface. The acidity and basicity of the Zr PCs/γ-Al_2O_3 sample increased with the increasing of zirconium content.Chidchon Sararuk Dan Yang Guoliang Zhang Chunshan Li Suojiang Zhang 2018Chinese Journal of Chemical Engineering2018,26,5:1
11Calculation methods of electromagnetic fields very close to lightning显示文摘YANG Chunshan ZHOU Bihua 2004IEEE Trans Electromagn Compat2004,46,1:1
12Calcution Methods of Electromagnetic Fields Very Close to Lightning显示文摘Chunshan Yang Bihua Zhou 2004Ieee Transactions on Electromagnetic Compatibility2004,46,1:1
13Network coding based reliable disjoint and braided mul- tipath routing for sensor networks 显示文摘Yang Yuwang Zhong Chunshan Sun Yamin 2010Journal of Net- work and Computer Applications2010,33,4:1
14Influence of seismic loading on segment opening of a shield tunnel显示文摘YANG Chunshan MO Haihong CHEN Junsheng 2014The Scientific World Journal2014,,3:1
15Network Coding Based Reliable Disjoint and Braided Multipath Routing for Sensor Networks显示文摘Yang Yuwang Zhong Chunshan Sun Yamin 2010Journal of Network and Computer Applications2010,33,4:1
16Calculation methods of electromagnetic fields very close to lightning显示文摘Yang Chunshan Zhou Bihua 2004IEEE Trans on EMC2004,46,1:1
17Microwave-assisted hydrothermal synthesis of hydroxy-sodalite zeolite membrane显示文摘Xiaochun Xu Yun Bao Chunshan Song Weishen Yang Jie Liu Liwu Lin 2004Microporous and Mesoporous Materials2004,,3:1
18Modification of engineering return stroke models to include dispersion effects 显示文摘Yang Chunshan Zhou Bihua Gao Cheng 2004IEEE Trans on Electromag Compat2004,46,3:1
19Calculation methods of electromagnetic fields very close to lightning显示文摘Yang Chunshan Zhou Bihua 2004IEEE Trans on Electromagn Compat2004,46,1:1
20Selection of Reasonable Scheme of Entering into a Working Well in Shield Construction 显示文摘YANG Chunshan MO Haihong CHEN Junsheng 2013Electronic Journal of Geotechnical Engineering2013,,18:1
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