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| 1 | Preparation of 3D graphene-based architectures and their applications in supercapacitors显示文摘Three dimensional(3D) graphene-based architectures such as 3D graphene-based hydrogels,aerogels,foams,and sponges have attracted huge attention owing to the combination of the structural interconnectivities and the outstanding properties of graphene which offer these interesting structures with low density,high porosity,large surface area,stable mechanical properties,fast mass and electron transport.They have been extensively studied for a wide range of applications including capacitors,batteries,sensors,catalyst,etc.There are several reviews focusing on the 3D graphene-based architectures and their applications.In this work,we only summarise the latest development on the preparation of 3D graphene-based architectures and their applications in supercapacitors,with emphasis on the preparation strategies. | Zhuxian Yang Sakineh Chabi Yongde Xia Yanqiu Zhu | 2015 | Progress in Natural Science:Materials International2015，25，6： | 4 |
| 2 | Surface functionalized N-C-TiO_(2)/C nanocomposites derived from metal-organic framework in water vapour for enhanced photocatalytic H generation显示文摘Surface-functionalized nitrogen/carbon co-doped polymorphic TiO_(2) phase junction nanoparticles uniformly distributed in porous carbon matrix were synthesized by a simple one-step pyrolysis of titanium based metal-organic framework(MOF),NH_(2)-MIL^(-1)25(Ti) at 700℃ under water vapour atmosphere.Introducing water vapour during the pyrolysis of NH_(2)-MIL^(-1)25(Ti) not only functionalizes the derived porous carbon matrix with carboxyl groups but also forms additional oxygen-rich N like interstitial/intraband states lying above the valence band of TiO2 along with the self-doped carbo n,which further narrows the energy band gaps of polymorphic TiO2 nanoparticles that enhance photocatalytic charge transfer efficiency.Without co-catalyst,sample N-C-TiO2/CArW demonstrates H_(2) evolution activity of 426 μmol gcat-1h^(-1),which remarkably outperforms commercial TiO_(2)(P-25) and N-C-TiO_(2)/CAr with a 5-fold and 3-fold H_(2) generation,respectively.This study clearly shows that water vapour atmosphere during the pyrolysis increases the hydrophilicity of the Ti-MOF derived composites by functionalizing porous carbon matrix with carboxylic groups,as well as enhancing the electrical conductivity and charge transfer efficiency due to the formation of additional localized oxygen-rich N like interstitial/intraband states.This work also demonstrates that by optimizing the anatase-rutile phase composition of the TiO2 polymorphs,tuning the energy band gaps by N/C co-doping and functionalizing the porous carbon matrix in the N-C-TiO2/C nanocomposites,the photocatalytic H_(2) generation activity can be further enhanced. | Mian Zahid Hussain Zhuxian Yang Bart van der Linden Zheng Huang Quanli Jia Erik Cerrato Roland A.Fischer Freek Kapteijn Yanqiu Zhu Yongde Xia | 2021 | Journal of Energy Chemistry2021，30，6： | 3 |
| 3 | Metal-organic framework derived multi-functionalized and co-doped TiO_(2)/C nanocomposites for excellent visible-light photocatalysis显示文摘Multi-functionalized and co-doped TiO_(2)/C nanocomposites were derived from the pyrolysis of Ti-MOFs at 800℃under different gaseous atmospheres and their photocatalytic performance were investigated.The gaseous atmosphere during pyrolysis plays a critical role in determining the structural,textural,optical and physicochemical properties of the derived TiO_(2)/C composites due to the synergistic effect of nitrogen-containing species,carboxylate and sulfur functionalized porous carbon as well as N/S co-doped TiO_(2)nanoparticles.All the Ti-MOFs derived TiO_(2)/C composites exclusively possess homogeneously distributed TiO_(2)nanoparticles in a functionalized disc-like porous carbon matrix and demonstrate much enhanced adsorption and photodegradation performance than commercial TiO_(2)under the same conditions.The adsorption of methylene blue(MB)in dark on these TiO_(2)/C composites are dominated with pseudo second-order kinetic model and the high adsorption capacity of MB in dark on composite TiO_(2)/C derived from MIL-125(Ti)in argon is due to its high surface area with predominant mesoporous carbon matrix in the composite.The composite N-O-TiO_(2)/C derived from NH2-MIL-125(Ti)in water vapor exhibited the highest photodegradation activity with 99.7%MB removal in 3 h under visible light due to the optimal anatase/rutile phasejunction,together with the formation of photoactive oxygen-rich N-O like interstitial/intraband states above the valence band of TiO_(2),as well as the presence of N-containing species and-OH/-COOH multi-functional groups with superhydrophilic nature of the composite.This simple one-step and easily modifiable approach can be further employed to modulate homogeneously dispersed multi-functionalized and co-doped metal oxide/carbon nanocomposites for various environment and energy-related applications. | Mian Zahid Hussain Zhuxian Yang Ahmed M.E.Khalil Shahzad Hussain Saif Ullah Awan Quanli Jia Roland A.Fischer Yanqiu Zhu Yongde Xia | 2022 | Journal of Materials Science & Technology2022，，6： | 3 |
| 4 | A GPU-based numerical model coupling hydrodynamical and morphological processes显示文摘Sediment transport simulations are important in practical engineering.In this study,a graphics processing unit(GPU)-based numerical model coupling hydrodynamical and morphological processes was developed to simulate water flow,sediment transport,and morphological changes.Aiming at accurately predicting the sediment transport and sediment scouring processes,the model resolved the realistic features of sediment transport and used a GPU-based parallel computing technique to the accelerate calculation.This model was created in the framework of a Godunov-type finite volume scheme to solve the shallow water equations(SWEs).The SWEs were discretized into algebraic equations by the finite volume method.The fluxes of mass and momentum were computed by the Harten,Lax,and van Leer Contact(HLLC) approximate Riemann solver,and the friction source terms were calculated by the proposed a splitting point-implicit method.These values were evaluated using a novel 2 D edge-based MUSCL scheme.The code was programmed using C++and CUDA,which could run on GPUs to substantially accelerate the computation.The aim of the work was to develop a GPU-based numerical model to simulate hydrodynamical and morphological processes.The novelty is the application of the GPU techniques in the numerical model,making it possible to simulate the sediment transport and bed evolution in a high-resolution but efficient manner.The model was applied to two cases to evaluate bed evolution and the effects of the morphological changes on the flood patterns with high resolution.This indicated that the GPU-based high-resolution hydro-geomorphological model was capable of reproducing morphological processes.The computational times for this test case on the GPU and CPU were298.1 and 4531.2 s,respectively,indicating that the GPU could accelerate the computation 15.2 times.Compared with the traditional CPU high-grid resolution,the proposed GPU-based high-resolution numerical model improved the reconstruction speed more than 2.0-12.83 times for different grid resolutions while remaining computationally efficient. | Jingming Hou Yongde Kang Chunhong Hu Yu Tong Baozhu Pan Junqiang Xia | 2020 | International Journal of Sediment Research2020，35，4： | 3 |
| 5 | Construction of hydrangea-like core-shell SiO_(2)@Ti_(3)C_(2)T_(x)@CoNi microspheres for tunable electromagnetic wave absorbers显示文摘Ti_(3)C_(2)T_(x)MXene shows great potential in the application as microwave absorbers due to its high attenuation ability.However,excessively high permittivity and self-stacking are the main obstacles that constrain its wide range of applications.To tackle these problems,herein,the microspheres of SiO_(2)@Ti_(3)C_(2)T_(x)@CoNi with the hydrangea-like core-shell structure were designed and prepared by a combinatorial electrostatic assembly and hydrothermal reaction method.These microspheres are constructed by an outside layer of CoNi nanosheets and intermediate Ti_(3)C_(2)T_(x)MXene nanosheets wrapping on the core of modified SiO_(2),engendering both homogenous and heterogeneous interfaces.Such trilayer SiO_(2)@Ti_(3)C_(2)T_(x)@CoNi microspheres are“magnetic microsize supercapacitors”that can not only induce dielectric loss and magnetic loss but also provide multilayer interfaces to enhance the interfacial polarization.The optimized impedance matching and core-shell structure could boost the reflection loss(RL)by electromagnetic synergy.The synthesized SiO_(2)@Ti_(3)C_(2)T_(x)@CoNi microspheres demonstrate outstanding microwave absorption(MA)performance benefited from these advantages.The obtained RL value was-63.95 dB at an ultra-thin thickness of 1.2 mm,corresponding to an effective absorption bandwidth(EAB)of 4.56 GHz.This work demonstrates that the trilayer core-shell structure designing strategy is highly efficient for tuning the MA performance of MXene-based microspheres. | Huanhuan Niu Xuewen Jiang Yongde Xia Hailong Wang Rui Zhang Hongxia Li Bingbing Fan Yanchun Zhoua | 2023 | Journal of Advanced Ceramics2023，12，4： | 3 |
| 6 | On the Synthesis and Characterization of ZSM-5/MCM-48 Aluminosilicate Composite Materials 显示文摘 | Xia Yongde Mokaya R | 2004 | J Mater Chem2004，14，5： | 1 |
| 7 | Promoting effect of A1 on SO4^2-/MxOy(M =Zr, Ti, Fe) catalysts显示文摘 | HUA Weiming XIA Yongde YUE Yinghong | 2000 | Journal of Catalysis2000，196，1： | 1 |
| 8 | The permeability effect of microcystin-RR on Escherichia coli and Bacillus subtilis显示文摘Microcystins are a kind of cyclic hepatoxins produced by many species of cyanobacteria.Most previous work have been done on the toxic effects of microcystins on animals and plants.However,the reports about the effect of microcystins on microbial cells are very limited.In this work,the permeability of MC-RR on the cell outer membrane of Escherichia coli(E.coli) and Bacillus subtilis(B.subtilis) was discussed.The permeability effect of MC-RR on the cell outer membrane of E.coli and B.subtilis under different concentrations was demonstrated by a rapid and sustained reduction in the A675 values of lysozyme-treated cells.The decrease of the absorbance values showed a time-and dose-effect.The extravasations of protein and carbonhydrate increased with the increment of the treated-concentration of MC-RR.The results showed that MC-RR could increase the permeability of cell outer membranes of E.coli and B.subtilis.The synergistic effects of MC-RR and lysozyme on bacteria indicated that MC-RR might play an ecological role in bacteria in combination with other substances in some aquatic environments. | YANG CuiYun XIA ChuanHai ZHOU ShiWei LIU YongDing | 2010 | Chinese Science Bulletin2010，55，18： | 1 |
| 9 | Generalized and facile syn- thesis approach to N-doped highly graphitic mesoporous carbon materials 显示文摘 | Xia Yongde Mokaya Robert | 2005 | Chemistry of Materials2005，6，17： | 1 |
| 10 | Ordered mesoporous carbon hollow spheres nanocast using mesoporous silica via chemical vapor deposition显示文摘 | Xia Yongde Mokaya Robert | 2004 | Adv Mater2004，16，11： | 1 |
| 11 | New catalyst of SO /Al203-ZrOz for n-butane isomerization显示文摘 | Gao Zi Xia Yongde Hua Weiming | 1998 | Topics in Catalysis1998，6，1： | 1 |
| 12 | Benzoylation of toluene with benzoyl chloride on Al‐promoted sulfated solid superacids显示文摘 | Yongde Xia Weiming Hua Zi Gao | 1998 | Catalysis Letters1998，，2： | 1 |
| 13 | New catalyst of SO 4 2? /Al2O3–ZrO2 for n-butane isomerization显示文摘 | Zi Gao Yongde Xia Weiming Hua Changxi Miao | 1998 | Topics in Catalysis (-)1998，，1： | 1 |
| 14 | New catalyst of SO 4 2? /Al2O3–ZrO2 for n-butane isomerization显示文摘 | Zi Gao Yongde Xia Weiming Hua Changxi Miao | 1998 | Topics in Catalysis (-)1998，，1： | 1 |
| 15 | Promoting effect of AI on SO-/MxOy (M-- Zr,Ti,Fe) catalysts显示文摘 | Hua Weiming Xia Yongde Yue Yinghong | 2000 | Journal of Catalysis2000，196，1： | 1 |
| 16 | Promoting effect of Al on SO2-4 /MxOy(M=Zr,Ti,Fe) catalysts显示文摘 | Hua Weiming Xia Yongde Yue Yinghong | 2000 | J Catal2000，196，1： | 1 |
| 17 | New catalyst of SO2 -4/Al2O3-Zr O2for n-butane isomerization显示文摘 | Gao Zi Xia Yongde Hua Weiming | 1998 | Topics in Catalysis1998，6，1： | 1 |
| 18 | Hy- drogen storage in high surface area carbons: Experimental demonstration of the effects of nitrogen doping 显示文摘 | Xia Yongde Walker Gavin S Grant David M | 2009 | Jour-nal of the American Chemical Society2009，131，16： | 1 |
| 19 | Ultralight three-dimensional,carbon-based nanocomposites for thermal energy storage显示文摘Polymer based nanocomposites consisting of elastic three-dimensional(3 D)carbon foam(CF),paraffin wax and graphene nanoplatelets(GNPs)have been created and evaluated for thermal energy storage.The ultralight,highly porous(~98.6%porosity),and flexible CFs with densities of2.84-5.26 mg/cm^3 have been used as the backbone skeleton to accommodate phase change wax and nanoscale thermal conductive enhancer,GNP.Low level of defects and the ordered sp2 configuration allow the resulting CFs to exhibit excellent cyclic compressive behavior at strains up to 95%,while retaining part of their elastic properties even after 100 cycles of testing.By dispersing the highly conductive GNP nanofillers in paraffin wax and infiltrating them into the flexible CFs,the resultant nanocomposites were observed to possess enhanced overall thermal conductivity up to 0.76 W/(m K),representing an impressive improvement of226%,which is highly desirable for thermal engineering. | Oluwafunmilola Ola Yu Chen Qijian Niu Yongde Xia Tapas Mallick Yanqiu Zhu | 2020 | Journal of Materials Science & Technology2020，36，1： | 0 |
| 20 | Bimetallic Fe-Mo sulfide/carbon nanocomposites derived from phosphomolybdic acid encapsulated MOF for efficient hydrogen generation显示文摘To tackle the energy crisis and achieve more sustainable development,hydrogen as a clean and renewable energy resource has attracted great interest.Searching for cheap but efficient catalysts for hydrogen production from water splitting is urgently needed.In this report,bimetallic Fe-Mo sulfide/carbon nanocomposites that derived from a polyoxometalate phosphomolybdic acid encapsulated metal-organic framework MIL-100(PMA@MIL-100)have been generated and their applications in electrocatalytic hydrogen generation were explored.The PMA@MIL-100 precursor is formed via a simple one-pot hydrothermal synthesis method and the bimetallic Fe-Mo sulfide/carbon nanocomposites were obtained by chemical vapor sulfurization of PMA@MIL-100 at high temperatures.The nanocomposite samples were fully characterized by a series of techniques including X-ray diffraction,Fourier-transform infrared analysis,thermogravimetric analysis,N2 gas sorption,scanning electron microscopy,transmission electron microscopy,X-ray photoelectron spectroscopy,and were further investigated as electrocatalysts for hydrogen production from water splitting.The hydrogen production activity of the best performed bimetallic Fe-Mo sulfide/carbon nanocomposite exhibits an overpotential of-0.321 V at 10 m A cm^(-2)and a Tafel slope of 62 m V dec^(-1)with a 53%reduction in overpotential compared to Mo-free counterpart composite.This dramatic improvement in catalytic performance of the Fe-Mo sulfide/carbon composite is attributed to the homogeneous distribution of the nanosized iron sulfide,MoS_(2)particles,and the formation of Fe-Mo-S phases in the S-doped porous carbon matrix.This work has demonstrated a potential approach to fabricate complex heterogeneous catalytic materials for different applications. | Zheng Huang Zhuxian Yang Mian Zahid Hussain Quanli Jia Yanqiu Zhu Yongde Xia | 2021 | Journal of Materials Science & Technology2021，，25： | 0 |
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