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| 1 | Formation of active oxygen species on single-atom Pt catalyst and promoted catalytic oxidation of toluene显示文摘Catalytic oxidation of toluene over noble metal catalysts is a representative reaction for elimination of volatile organic compounds(VOCs).However,to fully understand the activation of molecular oxygen and the role of active oxygen species generated in this reaction is still a challenging target.Herein,MgO nanosheets and single-atom Pt loaded MgO(Pt SA/MgO)nanosheets were synthesized and used as catalysts in toluene oxidation.The activation process of molecular oxygen and oxidation performance on the two catalysts were contrastively investigated.The Pt SA/MgO exhibited significantly enhanced catalytic activity compared to MgO.The oxygen vacancies can be easily generated on the Pt SA/MgO surface,which facilitate the activation of molecular oxygen and the formation of active oxygen species.Based on the experimental data and theoretical calculations,an active oxygen species promoted oxidation mechanism for toluene was proposed.In the presence of H2O,the molecular oxygen is more favorable to be dissociated to generate•OH on the oxygen vacancies of the Pt SA/MgO surface,which is the dominant active oxygen species.We anticipate that this work may shed light on further investigation of t10.1007/s12274-020-2765-1he oxidation mechanism of toluene and other VOCs over noble metal catalysts. | Shunzheng Zhao Yanfeng Wen Xijun Liu Xianyun Pen Fang Lü Fengyu Gao Xizhou Xie Chengcheng Du Honghong Yi Dongjuan Kang Xiaolong Tang | 2020 | Nano Research2020，13，6： | 12 |
| 2 | Studies on the Activities of Electrophilic Sites on Benzene Ring of 4-Substituted Anilines and Their Acyl Compounds with Multiphilicity Descriptor显示文摘 | SHEN Xizhou HE Huajun YANG Bowen ZHAO Zhigang SHAO Kaiyuan HU Wenxiang | 2017 | Chemical Research in Chinese Universities2017，33，5： | 5 |
| 3 | Extractive Desulfurization from Simulated Sulfur-Rich Naphtha显示文摘Upon extractive desulfurization of sulfur-rich oil obtained after recycling raffinate,the effects of single and compound extractants,temperature,and extractant/oil ratio on desulfurization rate,oil loss rate,extractant loss rate,and selectivity coefficient were investigated.The results showed that the thiophene existing in the simulated sulfur-rich oil could be further removed by extraction.The single-stage desulfurization rates achieved by dimethyl sulfoxide(DMSO)and sulfolane(SF)were 53.51%and 47.36%,respectively,while the selectivity coefficient of SF was 1.13,which was higher than that of DMSO(with a selectivity coefficient of 1.04).For the compound extractant,a single-stage desulfurization rate of 49.59%and a selectivity coefficient of 1.40 were obtained by using DMSO+10%MEA as the extractant,which was higher than that of SF.Upon using 50%SF+50%DMSO as the extractant,the single-stage desulfurization rate reached 50.92%with a selectivity coefficient of 1.32.Based on the comprehensive consideration,the DMSO+10%MEA extractant was selected as the best extractant for treating the sulfur-rich oil. | Shen Xizhou Li Zhiqiang Fang Liuya Song Hao Gan Feng Shen Zhi | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，3： | 4 |
| 4 | Effect of Water on Extractive Desulfurization of Simulated FCC Gasoline Using Ionic Liquid NMP-FeCl_(3)-H_(2)O显示文摘A series of novel aqueous ionic liquids(NMP-FeCl_(3)-nH_(2)O)were prepared and the effects of water in the aqueous ionic liquids on desulfurization rate and selectivity of simulated FCC gasoline were investigated.The results showed that adding a small amount of water into the ionic liquid NMP-FeCl_(3) could effectively improve the desulfurization rate and selectivity,and the optimal amount of water was equal to 5%-10% of NMP.Finally,the possible desulfurization mechanism activated by a small amount of water was proposed. | Fang Liuya Shen Zhi Shen Xizhou Kang Shunji Huang Wei Song Hao Liang Tian | 2021 | China Petroleum Processing & Petrochemical Technology2021，23，2： | 4 |
| 5 | Characteristics on microstructure and mechanical performances of 6111Al influenced by Ce-containing precipitates显示文摘In this work,the effects of Ce addition(0,0.1 wt%,0.3 wt%,0.5 wt%and 0.7 wt%)on the evolution of microstructure and mechanical properties of 6111 Al alloy and strengthening mechanism of 6111 Al-Ce alloy were systematically investigated by a polarizing microscope,a scanning electronic microscope,an energy dispersive spectroscope and a high-resolution transmission electron microscope.The results indicate that with 0.3 wt%Ce addition,theα-Al grains show the equiaxed crystal morphology with the average size decreasing from 137 to 57μm and numerous small AlCeSi phases with lump-like or platelike morphology are distributed closely along the grain boundary.The peak yield strength,ultimate tensile strength and elongation of 6111 Al-Ce alloy reach to 279 MPa,316 MPa and 12.1%,respectively,which is attributed to the grain refinement strengthening and the formation of nanosized Al11Ce3 precipitates.Eventually,this investigation gives us instructive suggestion to prepare the new kind of aluminum alloy with high strength and high ductility. | Xu Gao Yutao Zhao Xizhou Kai Wei Qian Liwei Jin Chuang Guan Peng Sheng | 2022 | Journal of Rare Earths2022，40，1： | 3 |
| 6 | Mesoporous molecular sieve-based materials for catalytic oxidation of VOC: A review显示文摘As the main contributor of the formation of particulate matter as well as ozone, volatile organic compounds(VOCs) greatly affect human health and the environmental quality. Catalytic combustion/oxidation has been viewed as an efficient, economically feasible and environmentally friendly way for the elimination of VOCs. Supported metal catalyst is the preferred type of catalysts applied for VOCs catalytic combustion because of the synergy between active components and support as well as its flexibility in the composition. The presence of support not only plays the role of keeping the catalyst with good stability and mechanical strength, but also provides a large specific surface for the good dispersion of active components, which could effectively improve the performance of catalyst as well as decrease the usage of active components, especially the noble metal amount. Mesoporous molecular sieves, owing to their large surface area, unique porous structures, large pore size as well as uniform pore-size distribution, were viewed as superior support for dispersing active components. This review focuses on the recent development of mesoporous molecular sieve supported metal catalysts and their application in catalytic oxidation of VOCs. The effect of active component types, support structure, preparation method, precursors, etc. on the valence state, dispersion as well as the loading of active species were also discussed and summarized. Moreover, the corresponding conversion route of VOCs was also addressed.This review aims to provide some enlightment for designing the supported metal catalysts with superior activity and stability for VOCs removal. | Wei Gao Xiaolong Tang Honghong Yi Shanxue Jiang Qingjun Yu Xizhou Xie Ruijie Zhuang | 2023 | Journal of Environmental Sciences2023，，3： | 2 |
| 7 | Analysis of basic conditions of the power grid interconnection among Xinjiang, Pakistan, and five Central Asian countries显示文摘Inter-regional and transnational grid interconnection is necessary for energy development. Xinjiang, which is rich in renewable energy resources, is adjacent to countries in Central Asia and has great potential for interconnection with its neighbors. This paper outlines China's relevant policies for transnational power interconnection, and introduces the energy structure, load demand endowments, and power supply status of Xinjiang, Pakistan, and five Central Asian countries. Further, it analyzes the advantages of the multinational power interconnection from the aspects of power supply and load complementation. Finally, from the perspective of technical support and practical basis, the feasibility of interconnection between Xinjiang, Pakistan, and five Central Asian countries have been analyzed. This paper provides a theoretical basis for promoting and implementing China's 'Belt and Road' power transnational interconnected development strategy. | Chunyi Huang Chengmin Wang Heng Li Jing Luo Weiqing Sun Xizhou Du | 2019 | Global Energy Interconnection2019，2，1： | 2 |
| 8 | Study on mechanism of low-temperature oxidation of n-hexanal catalysed by 2D ultrathin Co_(3)O_(4) nanosheets显示文摘Achieving high catalytic performance with lower possible cost and higher energetic efficiency is critical for catalytic oxidation of volatile organic compounds(VOCs).However,traditional thermocatalysts generally undergo low catalytic activity and fewer active sites.Herein,this paper synthesizes nearly all-surface-atomic,ultrathin two-dimensional(2D)Co_(3)O_(4) nanosheets to address these problems through offering a numerous active sites and high electron mobility.The 2D Co_(3)O_(4) nanosheets(1.70 nm)exhibit catalyzation to the total oxidation of n-hexanal at the lower temperature of r90%=202℃,and at the space velocity of 5.0×10^(4) h^(-1).It is over 1.2 and 6 times higher catalytic activity than that of 2D CoO nanosheets(1.71 nm)and bulk Co_(3)O_(4) counterpart,respectively.Transient absorption spectroscopy analysis shows that the oxygen vacancy defect traps electrons,thereby preventing the recombination with holes,increasing the lifetime of electrons,and making electron-holes reach a nondynamic equilibrium.The longer the electron lifetime is,the easier the oxygen vacancy defects capture electrons.Furthermore,the defects combine with oxygen to form active oxygen components.Compared with the lattice oxygen involved in the reaction of bulk Co_(3)O_(4),the nanosheets change the catalytic reaction path,which effectively reduces the activation energy barrier from 34.07 to 27.15 kJ/mol.The changed surface disorder,the numerous coordinatively-unsaturated Co atoms and the high ratio of O_(ads)/O_(lat) on the surface of 2D Co_(3)O_(4) nanosheets are responsible for the catalytic performance. | Leilei Miao Xiaolong Tang Shunzheng Zhao Xizhou Xie Chengcheng Du Tian Tang Honghong Yi | 2022 | Nano Research2022，15，2： | 2 |
| 9 | Effects of friction stir processing on the microstructure and superplasticity of in situ nano-ZrB_2/2024Al composite显示文摘In this study, in situ nano-ZrB_2/2024 Al composites fabricated from 2024Al–K_2ZrF_6–KBF_4 system were processed by friction stir processing(FSP) to achieve superplasticity of the composites. And the effects of particle contents(1 wt%, 3 wt%, 5 wt%), matrix grain size(micron or submicron), strain rates(5×10^(-3)s^(-1), 1×10^(-2)s^(-1), 2×10^(-2)s^(-1) and deformation temperatures(400 K, 480 K, 600 K, 700 K, 750 K) on the superplasticity of the composites were investigated. After the friction stir processing, the coarse grains of the cast composites with matrix grain size of about 80–100 μm and nano-Zr B2 reinforcement size of 30–100 nm were crushed into small grains about 1 μm in size, and the uniformity of the nano-Zr B_2 reinforcements was also improved. And under the same superplastic tensile testing condition at the temperature of 750 K and strain rate of 5×10^(-3)s^(-1), the FSP nano 3 wt%Zr B_2/2024 Al composite exhibited an superplastic elongation of 292.5%, while the elongation of the corresponding cast composite was only less than 100%. Meanwhile, the m values of the FSP composites were always higher than the cast composites, especially the FSP composites with 3 wt% particles has the m value of 0.5321 i.e., the FSP composites should had better superplastic properties than cast ones. Furthermore, the FSP composites had higher apparent deformation activation energy(Q) than that of the lattice diffusion of pure aluminium, indicating that the deformation mechanisms of the FSP composites should be grain boundary sliding mechanisms. | Yutao Zhao Xizhou Kai Gang Chen Weili Lin Chunmei Wang | 2016 | Progress in Natural Science:Materials International2016，26，1： | 2 |
| 10 | Strong and ductile particulate reinforced ultrafine-grained metallic composites fabricated by flake powder metallurgy显示文摘 | Xizhou Kai Zhiqiang Li Genlian Fan Qiang Guo Zhanqiu Tan Wenlong Zhang Yishi Su Weijie Lu Won-Jin Moon Di Zhang | 2012 | Scripta Materialia2012，，： | 1 |
| 11 | Converting Thiophene in Simulated Coking Crude Benzene to N,N-Dimethyl-2-thiophenecarboxamide by Dimethylcarbamyl Chloride Under Mild Conditions显示文摘Since the content of thiophene in coking crude benzene is high, it is necessary to remove it from coking crude benzene for efficient utilization. In this study, an important intermediate, N,N-dimethyl-2-thiophenecarboxamide, was synthesized from thiophene and dimethylcarbamyl chloride. The influences of the dosages of dimethylcarbamyl chloride and ZnCl2 catalyst, reaction temperature and time on the removal rate were further explored based on the reaction kinetics.The structure of the target product was characterized by means of MS,NMR and 13C NMR.The removal rate of thiophene was 98.14% after the reaction for 2 h and thiophene was almost removed after the reaction for 3 h under the optimal reaction conditions [a molar ratio of n(thiophene):n(dimethylcarbamyl chioride):w(ZnCl2)=1:12:10,300 r/min, 318 K and 101.325 kPa].The acylation of thiophene with dimethylcarbamyl chloride was approximately in accord with the first order kinetic equation at 303-323K.The activation energy was 53.9850 kJ/mol and the pre-exponential factor was 1.4521×10^9 h^-1. | SHEN Xizhou SONG Hao FANG Liuya DENG Hang GAN Feng SHEN Zhi | 2019 | Chemical Research in Chinese Universities2019，35，4： | 1 |
| 12 | Molecular Simulation of Adsorption of Quinoline Homologues on FAU Zeolite显示文摘The Grand Canonical Monte Carlo(GCMC) simulation method was used to investigate the adsorption properties of quinoline homologues(quinoline, 2-methyl quinoline, and 2,4-dimethyl quinoline) on the FAU zeolite. The adsorption heat, adsorption isotherms, and adsorption sites of them were obtained. At the temperature ranging from 673.15 to 873.15 K, the Henry constant of quinoline homologues calculated on the FAU zeolite was applied to simulate their adsorption heat. And its value was more in accordance with the related data reported in the literature. The results showed that their isosteric heat decreased in the following order: 2,4-dimethyl quinoline(118.63 kJ/mol) > 2-methyl quinoline(110.45 kJ/mol) > quinoline(98 kJ/mol), and complied with the order of their adsorbate basicity. The competitive adsorption of three components of quinoline homologues on the FAU zeolite was calculated numerically at a temperature of 773.15 K and a pressure range of 0.1—100 MPa under the Universal force field. Their adsorption capacity decreased in the following order: quinoline > 2-methyl quinoline > 2,4-dimethyl quinoline. The smaller the molecule size of the adsorbate, the greater the saturated adsorption capacity would be. It was found that the quinoline homologues could be adsorbed in the main channels of 12- membered-ring framework of the zeolite. Simultaneously, the influence of silica/alumina ratio on the adsorption property of quinoline homologues in FAU zeolite was studied. The smaller the silica/alumina ratio, the greater the isosteric heat and adsorption capacity would be. | Shen Xizhou Yan Fang Li Meiqing Xiao Yun | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，4： | 1 |
| 13 | Variation of cadmium uptake, translocation among rice lines and detecting for potential cadmium-safe cultivars显示文摘 | Zhang Hongjiang Zhang Xizhou Li Tingxuan Huang Fu | 2014 | Environmental Earth Sciences2014，，1： | 1 |
| 14 | Statistics-dependent quantum co-walking of two particles in one-dimensional lattices with nearest-neighbor interactions显示文摘 | Qin Xizhou Ke Yongguan Guan Xiwen | 2014 | Physical Review A2014，90，6： | 1 |
| 15 | An approach to the uniform dispersion of a high volume fraction of carbon nanotubes in aluminum powder显示文摘 | Lin Jiang Genlian Fan Zhiqiang Li Xizhou Kai Di Zhang Zhixin Chen Sam Humphries Greg Heness Wing Yiu Yeung | 2011 | Carbon2011，，6： | 1 |
| 16 | High-performance, Power-aware Distributed Computing for Scientific Applications显示文摘 | Cameron K W Ge Rong Feng Xizhou | 2005 | IEEE Computer2005，38，11： | 1 |
| 17 | An approach to the uniform dispersion of a high volume fraction of carbon nanotubes in aluminum powder显示文摘 | Lin Jiang Genlian Fan Zhiqiang Li Xizhou Kai Di Zhang Zhixin Chen Sam Humphries Greg Heness Wing Yiu Yeung | 2011 | Carbon2011，，6： | 1 |
| 18 | Pansystems Traffics, Lgistics and Knowledge Rediscovery显示文摘 | Zhou Xiaolu Zhang Xizhou Wang Chen Wu Xuemou | 2009 | Kybernetes2009，38，1： | 1 |
| 19 | Additive relationship between serum fibroblast growth factor 21 level and coronary artery disease显示文摘 | Shen Y Ma XiZhou J | 2013 | Cardiovasc Diabetol2013，12，： | 1 |
| 20 | Molecular Simulation Studies on Basicity of Nitrogen-containing Compounds显示文摘The DFT-based(density functional theory) ab initio quantum mechanical methods have been applied to study the basicity of the nitrogen-containing compounds in petroleum.The results have indicated that there is a distinct relationship between the protonation energy of nitrogen-containing compounds and their basicity.The more negative the protonation energy,the stronger the basicity is.It has been also found that aliphatic amines are more basic than pyridines or aromatic amines,and all these compounds are more basic than pyrroles.The addition of the aromatic rings can influence the basicity of anilines,while the 5- and 6-membered heterocyclic compounds function differently.The solvent properties may affect the basicity of these nitrogen-containing compounds. | Wang Lixin Zhou Han Dai Zhenyu Shen Xizhou | 2009 | China Petroleum Processing & Petrochemical Technology2009，11，3： | 0 |
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