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| 1 | Effect of preparation methods on the structure and catalytic performance of Fe–Zn/K catalysts for CO2 hydrogenation to light olefins显示文摘Potassium promoted iron–zinc catalysts prepared by co-precipitation method(C–Fe–Zn/K),solvothermal method(S–Fe–Zn/K)and hydrothermal method(H–Fe–Zn/K)could selectively convert CO_2to light olefins,respectively.The physicochemical properties of the obtained catalysts were determined by SEM,N_2physisorption,XRD,H_2-TPR,CO_2-TPD and XPS measurements.The results demonstrated that preparation methods had great influences on the morphology,phase structures,reduction and adsorption behavior,and hence the catalytic performance of the catalysts.The samples prepared by hydrothermal and co-precipitation method generated small uniform particles and led to lower specific surface area.In contrast,microspheres with larger specific surface area were formed by self-assembly of nanosheets using solvothermal method.ZnFe_2O_4was the only detectable phase in the fresh C–2Fe–1Zn/K,S–3Fe–1Zn/K and S–2Fe–1Zn/K samples.ZnFe_2O_4and ZnO co-existed with increasing Zncontent in S–1Fe–1Zn/K sample,while ZnO and Fe_2O_3could be observed over H–2Fe–1Zn/K sample.All the used samples contained Fe_3O_4,ZnO and Fe_5C_2.The peak intensity of ZnO was strong in the AR-H–2Fe–1Zn/K sample while it was the lowest in the AR-C–2Fe–1Zn/K sample after reaction.The formation of ZnFe_2O_4increased the interaction between iron and zinc for C–2Fe–1Zn/K and S–Fe–Zn/K samples,causing easier reduction of Fe_2O_3to Fe_3O_4.The surface basicity of the sample prepared by co-precipitation method was much more than that of the other two methods.During CO_2hydrogenation,all the catalysts showed good activity and olefin selectivity.The CO selectivity was increased with increasing Zncontent over S–Fe–Zn/K samples.H–2Fe–1Zn/K catalyst preferred to the production of C_5^+hydrocarbons.CO_2conversion of 54.76%and C_2~=–C_4~=contents of 57.38%were obtained on C–2Fe–1Zn/K sample,respectively. | Xu Wang Jianli Zhang Jingyu Chen Qingxiang Ma Subing Fan Tiansheng Zhao | 2018 | Chinese Journal of Chemical Engineering2018，26，4： | 6 |
| 2 | Promoting effect of polyoxyethylene octylphenol ether on Cu/ZnO catalysts for low-temperature methanol synthesis显示文摘Cu/ZnO catalysts were prepared by the co-precipitation method with the addition of OP-10(polyoxyethylene octylphenol ether) and were chemically and structurally characterized by means of XRD,BET,H2-TPR,CO-TPD and N2O-titration.The effect of OP-10 addition on the activity of Cu/ZnO for the slurry phase methanol synthesis at 150 ℃ was evaluated.The results showed that Cu/ZnO prepared with addition of 8% OP-10(denoted as C8) exhibited the promoted activity for the methanol synthesis.The conversion of CO and the STY(space time yield) of methanol were 42.5% and 74.6% higher than those of Cu/ZnO prepared without addition of OP-10(denoted as C0),respectively.The precursor of C8 contained more aurichalcite and rosasite,and the concerted effect of Cu-Zn in C8 was found to be stronger than that in C0.Compared with C0,C8 showed smaller particle size,lower reduction temperature and larger BET and Cu surface areas. | Ling Liu Tiansheng Zhao Qingxiang Ma Yufang Shen | 2009 | Journal of Natural Gas Chemistry2009，18，3： | 3 |
| 3 | Novel reaction route for dimethyl carbonate synthesis from CO2 and methanol显示文摘 | Zhao Tiansheng Han Yizhuo Sun Yuhan | 2000 | Fuel Processing Technology2000，62，： | 1 |
| 4 | Direct synthesis of propylene and light olefins from dimethyl ether catalyzed by modified H-ZSM-5显示文摘 | Zhao Tiansheng Tomokazu Takemoto Noritatsu Tsubaki | 2006 | Catalysis Communications2006，7，： | 1 |
| 5 | Novel reaction route for dimethyl carbonate synthesis from CO2 and methanol显示文摘 | Tiansheng Zhao Yizhuo Han yuhan Sun | 2000 | Fuel Processing Technology2000，62，： | 1 |
| 6 | Direct synthesis of dimethyl carbonate from supercritical carbon dioxide and methenol显示文摘 | Zhao Tiansheng | 1999 | Chinese Journal of Catalysis1999，20，2： | 1 |
| 7 | Direct Synthesis of Propylene and Light Olefins FromDimethyl Ether Catalyzed by Modified H-ZSM-5显示文摘 | Zhao Tiansheng Tomokazu Takemoto Noritatsu Tsubaki | 2006 | Catalysis Communications2006，7，9： | 1 |
| 8 | Monosized macroporous resins with epoxy groups and their structure and gel chromatography properties显示文摘The monosized macroporous-polymer beads based on cross-linked poly(glycidylmethacrylate) have been synthesized by a new improving method-combining dispersionpolymerization with swelling polymerization and polymeric solution porogens. The structure and gel chromatographic properties of the resins have been studied. The resins as matrix materials of various types of high performance liquid chromatography (HPLC) packings possess excellent separation | Chao Jin Yanguo Yang Zhongzhang Zhao Shuming Yang Xiulan Tian Tiansheng Su | 2000 | Chinese Science Bulletin2000，45，3： | 1 |
| 9 | Biologically inspired anthraquinone redox centers and biomass graphene for renewable colloidal gels toward ultrahigh-performance flexible micro-supercapacitors显示文摘Biomass carbon and small redox biomolecules are attractive materials for green,sustainable energy storage devices owing to their environmentally friendly,low-cost,scalable,and novel sources.However,most devices manufactured using these materials have low specific capacitance,poor cycle stability,short lifetime,complexity,and low precision of device fabrication.Herein,we report the directed self-assembly of mononuclear anthraquinone(MAQ)derivatives and porous lignin-based graphene oxide(PLGO)into a renewable colloidal gel through noncovalent interactions.These self-assembled gel electrode materials exhibited high capacitance(484.8 F g^(−1) at a current density of 1 A g^(−1))and could be further printed as flexible micro-supercapacitors(FMSCs)with arbitrary patterns and a relatively high resolution on specific substrates.The FMSCs exhibited excellent areal capacitance(43.6 mF cm^(−2)),energy and power densities(6.1μWh cm^(−2) and 50μW cm^(−2),respectively),and cycle stability(>10,000 cycles).Furthermore,the printed FMSCs and integrated FMSC arrays exhibited remarkable flexibility while maintaining a stable capacitance.The proposed approach can be applied to other quinone biomolecules and biomass-based carbon materials.This study provides a basis for fabricating green and sustainable energy storage device architectures with high capacitance,long-term cycling,high scalability,and high precision. | Tiansheng Wang Shunyou Hu Yuanyuan Hu Dong Wu Hao Wu Jinxu Huang Hao Wang Weiwei Zhao Wen Yu Mi Wang Jie Xu Jiaheng Zhang | 2023 | Journal of Materials Science & Technology2023，，20： | 0 |
| 10 | An efficient and mild recycling of waste melamine formaldehyde foams by alkaline hydrolysis显示文摘Melamine formaldehyde foam(MFF)generates many poisonous chemicals through the traditional recycling methods for organic resin wastes.Herein,a high MFF degradation ratio of ca.97 wt.%was achieved under the mild conditions(160℃)in a NaOH–H2O system with ammelide and ammeline as the main degradation products.The alkaline solvent had an obvious corrosion effect for MFF,as indicated by scanning electron microscopy(SEM).The reaction process and products distribution were studied by Fourier-transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),and ^(13)C nuclear magnetic resonance(NMR).Besides,the MFF degradation products that have the similar chemical structures and bonding performances to those of melamine can be directly used as the raw material for synthesis of melamine urea-formaldehyde resins(MUFs).Moreover,the degradation system demonstrated here showed the high degradation efficiency after reusing for 7 times.The degradation process generated few harmful pollutants and no pre-or post-treatments were required,which proves its feasibility in the safe removal or recovery of waste MFF. | Shaodi Wu Ning Zhang Chizhou Wang Xianglin Hou Jie Zhao Shiyu Jia Jiancheng Zhao Xiaojing Cui Haibo Jin Tiansheng Deng | 2024 | Green Energy & Environment2024，9，5： | 0 |
| 11 | Biomimetic hydroxyapatite coating on the 3D-printed bioactive porous composite ceramic scaffolds promoted osteogenic differentiation via PI3K/AKT/mTOR signaling pathways and facilitated bone regeneration in vivo显示文摘The architecture and surface modifications have been regarded as effective methods to enhance the bi-ological response of biomaterials in bone tissue engineering.The porous architecture of the implanta-tion was essential conditions for bone regeneration.Meanwhile,the design of biomimetic hydroxyap-atite(HAp)coating on porous scaffolds was demonstrated to strengthen the bioactivity and stimulate osteogenesis.However,bioactive bio-ceramics such asβ-tricalcium phosphate(β-TCP)and calcium sili-cate(CS)with superior apatite-forming ability were reported to present better osteogenic activity than that of HAp.Hence in this study,3D-printed interconnected porous bioactive ceramicsβ-TCP/CS scaf-fold was fabricated and the biomimetic HAp apatite coating were constructed in situ via hydrothermal reaction,and the effects of HAp apatite layer on the fate of mouse bone mesenchymal stem cells(mBM-SCs)and the potential mechanisms were explored.The results indicated that HAp apatite coating en-hanced cell proliferation,alkaline phosphatase(ALP)activity,and osteogenic gene expression.Further-more,PI3K/AKT/mTOR signaling pathway is proved to have an important impact on cellular functions.The present results demonstrated that the key molecules of phosphatidylinositol 3-kinase(PI3K),protein kinase B(AKT)and mammalian target of rapamycin(mTOR)were activated after the biomimetic hydrox-yapatite coating were constructed on the 3D-printed ceramic scaffolds.Besides,the activated influence on the protein expression of Runx2 and BMP2 could be suppressed after the treatment of inhibitor HY-10358.In vivo studies showed that the constructed HAp coating promoted bone formation and strengthen the bone quality.These results suggest that biomimetic HAp coating constructed on the 3D-printed bioac-tive composite scaffolds could strengthen the bioactivity and the obtained biomimetic multi-structured scaffolds might be a potential alternative bone graft for bone regeneration. | Bizhi Tan Naru Zhao Wei Guo Fangli Huang Hao Hu Yan Chen Jungang Li Zemin Ling Zhiyuan Zou Rongcheng Hu Chun Liu Tiansheng Zheng Gang Wang Xiao Liu Yingjun Wang Xuenong Zou | 2023 | Journal of Materials Science & Technology2023，，5： | 0 |
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