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| 1 | 2,5-Furandicarboxylic acid production via catalytic oxidation of 5-hydroxymethylfurfural:Catalysts,processes and reaction mechanism显示文摘Biomass conversion to value-added chemicals has received tremendous attention for solving global warming issues and fossil fuel depletion.5-Hydroxymethylfurfural(HMF)is a key bio-based platform molecule to produce many useful organic chemicals by oxidation,hydrogenation,polymerization,and ring-opening reactions.Among all derivatives,the oxidation product 2,5-furandicarboxylic acid(FDCA)is a promising alternative to petroleum-based terephthalic acid for the synthesis of biodegradable plastics.This review analytically discusses the recent progress in the thermocatalytic,electrocatalytic,and photocatalytic oxidation of HMF into FDCA,including catalyst screening,synthesis processes,and reaction mechanism.Rapid fundamental advances may be possible in non-precious metal and metal-free catalysts that are highly efficient under the base-free conditions,and external field-assisted processes like electrochemical or photoelectrochemical cells. | Chunlin Chen Lingchen Wang Bin Zhu Zhenqiang Zhou Soliman I.El-Hout Jie Yang Jian Zhang | 2021 | Journal of Energy Chemistry2021,30,3: | 9 |
| 2 | Determination of trichothecenes A (T-2 toxin, HT-2 toxin, and diacetoxyscirpenol) in the tissues of broilers using liquid chromatography coupled to tandem mass spectrometry显示文摘 | Lingchen Yang Zhiyong Zhao Aibo Wu Yifeng Deng Zhenlei Zhou Jianpeng Zhang Jiafa Hou | 2013 | Journal of Chromatography B2013,,: | 1 |
| 3 | Impact toughness of a gradient hardened layer of Cr5Mo1V steel treated by laser shock peening显示文摘Laser shock peening(LSP) is a widely used surface treatment technique that can effectively improve the fatigue life and impact toughness of metal parts.Cr5Mo1 V steel exhibits a gradient hardened layer after a LSP process.A new method is proposed to estimate the impact toughness that considers the changing mechanical properties in the gradient hardened layer.Assuming a linearly gradient distribution of impact toughness,the parameters controlling the impact toughness of the gradient hardened layer were given.The influence of laser power densities and the number of laser shots on the impact toughness were investigated.The impact toughness of the laser peened layer improves compared with an untreated specimen,and the impact toughness increases with the laser power densities and decreases with the number of laser shots.Through the fracture morphology analysis by a scanning electron microscope,we established that the Cr5Mo1 V steel was fractured by the cleavage fracture mechanism combined with a few dimples.The increase in the impact toughness of the material after LSP is observed because of the decreased dimension and increased fraction of the cleavage fracture in the gradient hardened layer. | Weiguang Xia Lei Li Yanpeng Wei Aimin Zhao Yacong Guo Chenguang Huang Hongxiang Yin Lingchen Zhang | 2016 | Acta Mechanica Sinica2016,32,2: | 1 |
| 4 | Expression, Purification, and Characterization of a Novel Soluble Form of Human Delta-like-1显示文摘 | Mei Zhao Mingyuan Wu Lingchen Guo Junfen Jiang Weiwei Huang Xiaojuan Lin Zhonghui Zhang Di Xiang Huili Lu Shunying Zhu Yan Yu Anja Moldenhauer Wei Han | 2010 | Applied Biochemistry and Biotechnology2010,,5: | 1 |
| 5 | Morphology controllable conjugated network polymers based on AIE-active building block for TNP detection显示文摘Luminescent conjugated network polymer is one of the most promising chemo-sensors owing to their good chemical/optical stability and multiple functionalization.Herein,three conjugated network polymers were prepared by using aggregation-induced emission active 1,1,2,2-tetrakis(4-formyl-(1,1’-biphenyl))-ethane(TFBE)unit as monomer and hydrazine as linker.Through regulating the synthetical condition,the polyme ric network can form either unifo rm two-dimensional azine-linked nanosheets(ANS),conjugated microporous polymers(A-CMP)or covalent organic frameworks(A-COF).All of these polymers exhibited good stability and high fluorescence quantum efficiency with the quantum yield of6.31%for A-NS,5.26%for A-CMP,and 5.80%for A-COF,as well as fast and selective fluorescence quenching response to 2,4,6-trinitrophenol(TNP).And the best TNP sensing performance with the Stern-Volmer constants(K_(sv))values up to 8×10^(5)L/mol and a detection limit of 0.09μmol/L was obtained for A-NS.The study explores various strategies to construct conjugated polymers with different nanoarchitectures based on the same building block for sensitive detection of explosives. | Shan Jiang Lingchen Meng Wenyue Ma Qingkai Qi Wei Zhang Bin Xu Leijing Liu Wenjing Tian | 2021 | Chinese Chemical Letters2021,32,3: | 0 |
| 6 | Twisted Intramolecular Charge Transfer—Aggregation-Induced Emission Fluorogen with Polymer Encapsulation-Enhanced NearInfrared Emission for Bioimaging显示文摘Fluorescence probes with strong near-infrared(NIR)emission and water solubility are considered useful visualization tools for localization marking as well as investigating cell migration and transplantation.Here,we designed and synthesized a new donor–π–acceptor(D–π–A)fluorogen,2-(4-[(E)-4-(diphenylamino)styryl]phenyl)-3-(4′-[1,2,2-triphenylvinyl]-[1,1′-biphenyl]-4-yl)fumaronitrile(TB-TPE).TB-TPE exhibits twisted intramolecular charge transfer(TICT)and aggregation-induced emission(AIE)in the NIR region,with an emission peak at 714 nm and a fluorescence quantum yield(Qy)of 6.6%in the solid state.By encapsulating TB-TPE with polystyrene–polyethylene glycol(PS-PEG),watersoluble TB-TPE-PS-PEG nanoparticles(TP NPs)are fabricated,which display polymer encapsulationenhanced emission with a Qy of 46.5%due to the strong restriction effect on the TICT process and the destruction of H aggregation for TB-TPE by the polymer matrix.Au-coated Fe_(3)O_(4)(Fe_(3)O_(4)@Au)nanocrystals were then embedded in the TP NPs to form highly fluorescent TB-TPE-Fe_(3)O_(4)-Au-PS-PEG nanoparticles(TFAP NPs)with a Qy of 39.7%.Our demonstration of successful cellular imaging of TP NPs for Hep-G2 cells and multimodality imaging of TFAP NPs in mouse liver tumors indicates that polymer-encapsulated TB-TPE offers great prospects as a multifunctional fluorescence probe for bioimaging. | Lingchen Meng Xibo Ma Shan Jiang Song Zhang Zhiyuan Wu Bin Xu Zhen Lei Leijing Liu Wenjing Tian | 2021 | CCS Chemistry2021,3,3: | 0 |
| 7 | From“selective two-child policy”to universal two-child policy:Will the payment crisis of China’s pension system be solved?显示文摘With the rapid population aging,the payment crisis of China’s pension insurance fund is increasing yearly.The government adjusts fertility policy to alleviate population aging and improve the solvency of pension insurance fund.On January1,2016,China’s fertility policy was adjusted from“selective two-child policy”to universal two-child policy.This paper establishes actuarial models to analyze how fertility policy adjustment influences the pension insurance fund and concludes as follows:(1)if the“one-child policy”were still employed,the accumulated deficit of pension insurance fund would appear in the year of 2076;(2)if all couples that satisfy the rules of“selective two-child policy”bear the second child,the time of accumulated deficit of pension insurance fund would be postponed by about 9 years;(3)after implementing universal two-child policy,the time of accumulated deficit of pension insurance fund would delay under different situations of fertility intentions,if more than 54% of the qualified couples bear a second child,the accumulated deficit of pension insurance fund would not appear before 2090.The above conclusions have passed the sensitivity tests.Therefore,“two-child policy”can alleviate the payment pressure of pension insurance fund.If the government wants to solve the payment crisis of pension insurance fund,fertility intentions should be improved. | Zeng Yi Zhang Xinjie Liu Lingchen | 2017 | China Finance and Economic Review2017,6,1: | 0 |
| 8 | Deformation behavior during nanoindentation in Ce-based bulk metallic glasses显示文摘The deformation behavior and the ef- fect of the loading rate on the plastic deformation in Ce-based bulk metallic glasses (BMGs) were inves- tigated through nanoindentation tests. The results showed that the loading rate dependence of plastic deformation during nanoindentation measurements in the Ce-based BMGs is quite unique in contrast to that of other BMG alloys. The load-displacement (P-h) curves of Ce60Al15Cu10Ni15 BMG exhibit a homoge- neous plastic deformation at low loading rates, and a prominent serrated flow at high strain rates, whereas, the P-h curves of Ce65Al10Cu10Ni10Nb5 exhibit ho- mogenous plastic deformation at all studied loading rates. The room temperature creep behavior could clearly be observed in these two alloys. The mecha- nism of the unique plastic deformation feature in the Ce-based BMGs was studied. | ZHANG Lingchen XING Dongmei ZHANG Taihua WEI Bingchen LI Weihuo WANG Yuren | 2006 | Chinese Science Bulletin2006,51,13: | 0 |