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7篇 您的检索式:作者名="Xiazhang LI"
    题名 作者 年代 出处 被引量
1La1-xCexMnO3/attapulgite nanocomposites as catalysts for NO reduction with NH3 at low temperature显示文摘Xiazhang Li YU Yin Chao Yao Shixiang Zuo Xiaowang Lu Shiping Luo Chaoying Ni 2016Particuology2016,14,3:4
2Facile synthesis of Ce02 nanotubes templated by modified attapulgite 显示文摘Chen Zhigang Chen Feng Li Xiazhang 2010Journal of Rare Earths2010,28,4:1
3Oriented polycrystalline mesoporous CeO 2 with enhanced pore integrity显示文摘Chaoying Ni Xiazhang Li Zhigang Chen Hui-Yin Harry Li Xinqiao Jia Ismat Shah John Q. Xiao 2008Microporous and Mesoporous Materials2008,,3:1
4Upconversion hollow nanospheres CeF_(3) co-doped with Yb^(3+) and Tm^(3+) for photocatalytic nitrogen fixation显示文摘Solar driven nitrogen(N_(2))fixation to synthesize ammonia is a potential alternative for the traditional Haber-Bosch approach to meeting industrial demand,but is largely hampered by the difficulties in the harvesting of solar energy and activating inert N_(2).In this work,hollow CeF_(3) nanospheres co-doped with activator Tm^(3+)and sensitizer Yb^(3+)(Yb^(3+):Tm^(3+):CeF_(3))were prepared by microwave hydrothermal method.The product was employed as a catalyst for photo-driven N_(2) fixation by adjusting the molar ratio of Ce^(3+):Yb^(3+):Tm^(3+).Results show that the porous hollow structure enhances the light-harvesting by physical scattering and reflection.In addition,heteroatom doping generates abundant fluorine vacancies(F_(V))which provide abundant active sites for adsorption and activation of N_(2).The sample with molar ratio of CeF_(3):Yb^(3+):Tm^(3+)at 178:20:2 demonstrates the highest utilization of solar energy attributed to the strongest upconversion capability of near-infrared(NIR)light to visible and ultraviolet(UV)light,and the NH_(4)+concentration achieves the highest value of 15.06μmol/(gcat∙h)under simulated sunlight while nearly 6.22μmol/(gcat∙h)under NIR light.Current study offers a promising and sustainable strategy for the fixation of atmospheric N_(2) using full-spectrum solar energy.Minghui Zhong Zhendong Wang Da Dai Baozhu Yang Shixiang Zuo Chao Yao Fengqin Wu Xiazhang Li 2022Journal of Rare Earths2022,40,4:1
5Layer-by-layer synthesis of hollow spherical CeO2 templated by carbon spheres显示文摘Xiazhang Li Feng Chen Xiaowang Lu Chaoying Ni Xiaobing Zhao Zhigang Chen 2010Journal of Porous Materials2010,,3:1
6Microwave hydrothermal synthesis of lanthanum oxyfluoride nanorods for photocatalytic nitrogen fixation:Effect of Pr doping显示文摘Photocatalytic fixation of nitrogen has been recognized as a green and promising strategy for ammonia synthesis under ambient conditions.However,the efficient reduction of nitrogen remains a challenge due to high activation energy of nitrogen and low utilization of solar energy.Herein,lanthanum oxyfluoride with different doping content of Pr3+(LaOF:xPr3+)upconversion nanorods were synthesized by microwave hydrothermal method.Results indicated that the doping of Pr3+generated considerable defects on the surface of LaOF which acted as the adsorption and activation center for nitrogen.Meanwhile,the Pr3+ion narrowed the band gap and broadened the light response range of LaOF because LaOF:Pr3+can upconvert visible light into ultraviolet light,which excite LaOF nanorods and improve the utilization of solar light.The doping amount of Pr3+had critical effect on the photocatalytic nitrogen fixation performance which reached as high as 180μmol·L?1·ho1 when the molar ratio of Pr3+to LaOF was optimized to be 2%.Xiangyu Yan Da Dai Kun Ma Shixiang Zuo Wenjie Liu Xiazhang Li Chao Yao 2020Frontiers of Materials Science2020,14,1:0
7Construction of upconversion fluoride/attapulgite nanocomposite for visible-light-driven photocatalytic nitrogen fixation显示文摘Developing photocatalysts with wide spectrum absorption and strong nitrogen activation is critical for nitrogen fixation under mild conditions.Herein,one-dimensional natural clay attapulgite(ATP)supported YFg:Sm^3+were successfully synthesized via microwave hydrothermal method,and the composites were employed as the catalyst for photocatalytic nitrogen fixation under visible-light irradiation.Results indicated that the production of ammonia reached as high as 41.2 mg·L^-1 within 3 h when the molar ratio of Sm^3+and the mass fraction of YF3:Sm^3+were optimized.The enhanced fixation performance is mainly due to that the modified ATP fibber with abundant active sites and the doped fluoride with defective vacancy facilitate the adsorption and activation of N2.Furthermore,the upconversion property of YF3:Sm^3+increases the harvesting of visible-light energy,meanwhile the Z-scheme heterostructure built between YF:Sm^3+and modified ATP inhibits the recombination of charge carriers and retains high redox potentials for N2 reduction.Xuhua YE Xiangyu YAN Xini CHU Shixiang ZUO Wenjie LIU Xiazhang LI Chao YAO 2020Frontiers of Materials Science2020,14,4:0
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