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| 1 | Structural Changes of Wheat Straw Lignin during Formic Acid Treatment显示文摘The aromatic nature of lignin makes it a potential renewable source of chemicals and other valuable products.Isolation of lignin from lignocellulosic biomass using organic solvents enables the production of high-purity lignin.The use of formic acid in the organosolv pulping and fractionation process has been widely studied.Characterization of lignin is necessary to achieve valueadded applications of lignin.To simplify the isolation of formic acid-treated lignin,herein,milled wheat straw lignin(MWSL) was employed as an archetype for characterization of the structural changes of lignin during formic acid treatment.The results showed that the MWSL was GSH-type(comprising p-hydroxyphenyl(H),guaiacyl(G),and syringyl(S) monolignols) and underwent structural changes during formic acid treatment.Lignin was esterified during the formic acid treatment.The content of alkyl hydroxyl groups in lignin decreased upon formic acid treatment,corresponding to an increase of the number of double bond equivalents(DBE).Lignin units with active reaction sites were liable to slight condensation,which resulted in a moderate increase of the molecular weight.The molecular weight distribution of formic acid-treated MWSL(FMWSL) was wider than that of the MWSL,although the molecular weight of both species did not differ significantly.The β-O-4 linkage in lignin was partially cleaved during formic acid treatment,resulting in the production of new phenolic structures.This improved the solubility of lignin in the cooking liquor and its reactivity for downstream applications. | RuiXue Dong XiuWen Mei Chang Ma MingFei Li YongMing Fan | 2016 | Paper And Biomaterials2016，1，2： | 5 |
| 2 | Distinct immune signatures discriminate between asymptomatic and presymptomatic SARS-CoV-2^(pos)subjects显示文摘Increasing numbers of SARS-CoV-2-positive(SARS-CoV-2^(pos))subjects are detected at silent SARS-CoV-2 infection stage(SSIS).Yet,SSIS represents a poorly examined time-window wherein unknown immunity patterns may contribute to the fate determination towards persistently asymptomatic or overt disease.Here,we retrieved blood samples from 19 asymptomatic and 12 presymptomatic SARS-COV-2^(pos)subjects,47 age/gender-matched patients with mild or moderate COVID-19 and 27 normal subjects,and interrogated them with combined assays of 44-plex CyTOF,RNA-seq and Olink.Notably,both asymptomatic and presymptomatic subjects exhibited numerous readily detectable immunological alterations,while certain parameters including more severely decreased frequencies of CD107a^(low)classical monocytes,intermediate monocytes,non-classical monocytes and CD62L^(hi)CD8^(+)Tnaive cells,reduced plasma STC1 level but an increased frequency of CD4^(+)NKT cells combined to distinguish the latter.Intercorrelation analyses revealed a particular presymptomatic immunotype mainly manifesting as monocytic overactivation and differentiation blockage,a likely lymphocyte exhaustion and immunosuppression,yielding mechanistic insights into SSIS fate determination,which could potentially improve 5ARS-CoV-2 management. | Shanhe Yu Caixia Di Shijun Chen Mingquan Guo Jiayang Yan Zhaoqin Zhu Li Liu Ruixue Feng Yinyin Xie Ruihong Zhang Juan Chen Mengxi Wang Dong Wei Hai Fang Tong Yin Jinyan Huang Saijuan Chen Hongzhou Lu Jiang Zhu Jieming Qu | 2021 | Cell Research2021，31，11： | 4 |
| 3 | Performance simulation and optimization of new radiant floor heating based on micro heat pipe array显示文摘This paper proposes two new radiant floor heating structures based on micro heat pipe array(MHPA),namely cement-tile floor and keel-wood floor.The numerical models for these different floor structures are established and verified by experiments.The temperature distribution and heat transfer process of each part are comprehensively obtained,and the structure is optimized.The results show that the cement-tile floor has the better heat transfer performance of the two.When under the same inlet water temperature and flow rate,the keel-wood floor's surface temperature distribution is about 2℃ lower than that of the cement-tile floor.The inlet water temperature of cement-tile floor is about 10℃ lower than that of keel-wood structure when the floor surface temperature is the same.During a longitudinal heat transfer above MHPA,the floor surface temperature decreases by 0.5℃ for every 10 mm filling layer increase.In order to reduce the non-uniformity of the floor's surface temperature and improve the thermal comfort of the heated room,the optimal structure for a floor is given,with the maximum surface temperature difference reduced by 3.35℃.We used research focusing on new radiant floor heating,with advantages including high efficiency heat transfer,low water supply temperature,simple waterway structure,low resistance and leakage risk,to provide theory and data to support the application of an effective radiant floor heating based on MHPA. | Heran Jing Zhenhua Quan Ruixue Dong Limin Hao Yunhan Liu Yaohua Zhao | 2022 | Building Simulation2022，15，7： | 1 |
| 4 | Investigation ongeneration performance for tubular direct methanol fuel cell显示文摘 | Tang Dong Zhang Yang Duan Ruixue | 2011 | Advanced Materials Research2011，，： | 1 |
| 5 | UiO-66 type metal-organic framework as a multifunctional additive to enhance the interfacial stability of Ni-rich layered cathode material显示文摘To effectively alleviate the surface structure degradation caused by electrolyte corrosion and transition metal(TM) dissolution for Ni-rich(Ni content > 0.6) cathode materials, porous Zirconium based metalorganic frameworks(Zr-MOFs, UiO-66) material is utilized herein as a positive electrode additive. UiO-66 owns tunable attachment sites and strong binding affinity, making itself an efficient defluorination agent to suppress the undesirable reactions caused by fluorine species. Besides, it can also relieve TMs dissolution and block the migration of TMs toward anode side since it’s a multifarious metal ions adsorbent,realizing both cathode and anode interface protection. Benefiting from these advantages, the UiO-66 assistant Ni-rich cathode achieves superior cycling stability. Particularly in full cell, the positive effects of this multifunctional additive are more pronounced than in the half-cell, that is after 400 cycles at 2 C,the capacity retention has doubled with the addition of UiO-66. More broadly, this unique application of functional additive provides new insight into the degradation mechanism of layered cathode materials and offers a new avenue to develop high-energy density batteries. | Ruixue Xue Na Liu Liying Bao Lai Chen Yuefeng Su Yun Lu Jinyang Dong Shi Chen Feng Wu | 2020 | Journal of Energy Chemistry2020，29，11： | 0 |
| 6 | Recrystallization effect on surface passivation of Hastelloy X alloy fabricated by laser powder bed fusion显示文摘Post-heat treatment is generally adopted in the additive manufacturing field due to its alleviation of high residual stress and modification of rapid-solidified multilevel heterogeneous microstructure,and the related performance of the heat-treated counterparts calls for a systemic investigation to build a criterion of the heat treatment procedure.In this work,we focus on the heat treatment effects on the recrystallization of the Hastelloy X alloy produced by the laser powder bed fusion(LPBF)method,and the related surface passivation of the heat-treated counterparts is meticulously assessed as well.Results show that the multilevel heterostructure for LPBF Hastelloy X alloy consists of sub-micro dislocation cell substructures with Cr/Mo elemental segregation,fine columnar grains,and periodically-distributed molten pools.After heat treatment,partially and fully recrystallized structures for LPBF Hastelloy X alloys were achieved at 1100 and 1200℃for 1 h,respectively.Furthermore,the as-built LPBF Hastelloy X alloy shows superior corrosion resistance while the heat-treated one(1100℃)exhibits the worst in the borate buffer solution.The growth of passive film exhibited a highly linear correlation with the nucleation process controlled by diffusion,and high dislocation density and low angle grain boundary decreased the diffusion coefficient of cation vacancies,augmenting the nucleation sites of the passive film and enhancing its growth rate.Moreover,the micro-galvanic effect resulting from the partially recrystallized microstructure actively facilitated the formation of inhomogeneous porous passive films,leading to the worst corrosion resistance. | Xing He Li Wang Decheng Kong Ruixue Li Wei Zhang Kunjie Dai Xiaoqing Ni Ketai He Chaofang Dong | 2023 | Journal of Materials Science & Technology2023，，32： | 0 |
| 7 | Light-harvesting Complex Ⅱ Sensitized Oxide Photoanodes with Organic Acceptor Molecule as Electron Transfer Mediator显示文摘Dye sensitized solar cell(DSSC) is a promising thin film solar cell that has been widely investigated after its birth because of its advantages,such as flexibility,low-cost,easyfabrication and so on[1-3].For DSSCs,sensitizers play a core role due to their responsibility for the generation of the photo carriers resulted from light absorption and the transfer of the photo-generated electrons into semiconductor photoanodes[4]. | DONG Wenjing ZHANG Tianning LIU Kun SUN Ruixue HUANG Chanyan SUN Yan LIU Cheng CHEN Xin YANG Guoqiang YANG Chunhong DAI Ning | 2014 | Chemical Research in Chinese Universities2014，30，2： | 0 |
| 8 | Weldable and closed-loop recyclable monolithic dynamic covalent polymer aerogels显示文摘Owing to their low density,high porosity and unique micro-nanostructures,aerogels are attractive for application in various fields;however,they suffer from shrinkage and/or cracking during preparation,mechanical brittleness,low production efficiency and non-degradation.Herein,we introduce the concept of dynamic covalent polymer chemistry to produce a new class of aerogels—referred to as DCPAs.The resulting lightweight DCPAs have the potential to be prepared on a large scale and feature high porosity(90.7%–91.3%),large degrees of compression(80%strain)and bending(diametral deflection of 30 mm)without any cracks,as well as considerable tensile properties(an elongation with a break at 32.7%).In addition,the DCPAs showcase the emergent characteristics of weldability,repairability,degradability and closed-loop recyclability that are highly desirable for providing versatile material platforms,though hardly achieved by traditional aerogels.Taking advantage of their robust porous structures,we demonstrate the potential of DCPAs for applications in thermal insulation and emulsion separation.These findings reveal that the dynamic covalent bond strategy would be generalized for the production of a new generation of aerogels with customized features for functioning in the field of intelligent and sustainable materials. | Xinhai Zhang Jun Zhao Kai Liu Guangfeng Li Dong Zhao Zhaoming Zhang Junjun Wan Xue Yang Ruixue Bai Yongming Wang Wei Zhang Xuzhou Yan | 2022 | National Science Review2022，9，9： | 0 |
| 9 | 30 Years of Climate Change before and after the Impoundment of the Three Gorges Reservoir显示文摘The Three Gorges Project, also known as the Yangtze River Three Gorges Water Control Project, is located in Yichang, Hubei Province, China. The dam is one of the largest hydropower stations in the world, with an elevation of 185 meters and a water storage elevation of 175 meters. | Junqi Liu Chen Lin Shan Dong Ruixue Feng Aijun Su Jinghui Cui Shupeng Yu | 2023 | Journal of Earth Science2023，34，4： | 0 |
| 10 | 3D ordered macro-/mesoporous Ni_(x)Co_(100-x ) alloys as high-performance bifunctional electrocatalysts for overall water splitting显示文摘Electrochemical water splitting is a facile and effective route to generate pure hydrogen and oxygen.However,the sluggish kinetics of hydrogen evolution reaction(HER) and especially oxygen evolution reaction(OER) hinder the water splitting efficiency.Meanwhile,the high-cost of noble-metal catalysts limit their actual application.It is thus highly urgent to exploit an economical and earthabundant bifunctional HER and OER electrocatalyst to simplify procedure and reduce cost.Herein,we synthesize the three-dimensionally ordered macro-/mesoporous(3 DOM/m) Ni_(x)Co_(100-x) alloys with distinctive structure and large surface area via a dual-templating technique.Among them,the3 DOM/m Ni61Co39 shows the lowest overpotentials of 121 mV and 241 mV at 10 mA/cm^(2) for HER and OER,respectively.Furthermore,when employed for water splitting,the Ni_(61)Co_(39) only requires 1.60 V to approach 10 mA/cm^(2) and presents excellent stability.These encouraging performances of the Ni_(61)Co_(39) render it a promising bifunctional catalyst for overall water splitting. | Chenhui Niu Yixin Zhang Jing Dong Ruixue Yuan Wei Kou Lianbin Xu | 2021 | Chinese Chemical Letters2021，32，8： | 0 |
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