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| 1 | Enhancing both selectivity and coking-resistance of a single-atom Pd1/C3N4 catalyst for acetylene hydrogenation显示文摘选择加氢是在化学升级的一个重要工业催化过程,在因为他们的高加氢活动,基于 Pd 的催化剂广泛地被使用的地方。然而,因为重焦炭形成,差的选择和短催化剂一生是主要担心。在这个工作,原子地驱散 Pd 原子成功地在 graphitic 碳氮化物上被综合(g-C 3 用原子层免职的 N 4) 。没有 Pd nanoparticle (NP ) ,改正错误的高角度的环形的黑暗地的扫描传播电子显微镜学(HAADF 茎) 证实了孤立的 Pd 原子的主导的存在形成。在在过量乙烯的乙炔的选择加氢期间, g-C 3 N 4-supported Pd NP 催化剂比常规 Pd/Al 2 O 3 和 Pd/SiO 2 催化剂。在原处, X 光检查光致核裂变光谱学表明可观的费用从 Pd NP 转到 g-C 3 N 4 多半在催化表演改进起一个重要作用。更给人深刻印象地,单个原子的 Pd 1/C3 N 4 催化剂展出了两种更高的乙烯选择和更高的 coking 抵抗。我们的工作证明单个原子的 Pd 催化剂是在加氢反应改进选择和焦炭抵抗的一个有希望的候选人。 | Xiaohui Huang Yujia Xia Yuanjie Cao Xusheng Zheng Haibin Pan Junfa Zhu Chao Ma Hengwei Wang Junjie Li Rui You Shiqiang Wei Weixin Huang Junling Lu | 2017 | Nano Research2017，10，4： | 16 |
| 2 | Sirt1-ROS-TRAF6 Signaling-Induced Pyroptosis Contributes to Early Injury in Ischemic Mice显示文摘Stroke is an acute cerebro-vascular disease with high incidence and poor prognosis,most commonly ischemic in nature.In recent years,increasing attention has been paid to inflammatory reactions as symptoms of a stroke.However,the role of inflammation in stroke and its underlying mechanisms require exploration.In this study,we evaluated the inflammatory reactions induced by acute ischemia and found that pyroptosis occurred after acute ischemia both in vivo and in vitro,as determined by interleukin-1β,apoptosis-associated speck-like protein,and caspase-1.The early inflammation resulted in irreversible ischemic injury,indicating that it deserves thorough investigation.Meanwhile,acute ischemia decreased the Sirtuin 1(Sirtl)protein levels,and increased the TRAF6(TNF receptor associated factor 6)protein and reactive oxygen species(ROS)levels.In further exploration,both Sirtl suppression and TRAF6 activation were found to contribute to this pyroptosis.Reduced Sirtl levels were responsible for the production of ROS and increased TRAF6 protein levels after ischemic exposure.Moreover,N-acetyl-L-cysteine,an ROS scavenger,suppressed the TRAF6 accumulation induced by oxygen-glucose deprivation via suppression of ROS bursts.These phenomena indicate that Sirtl is upstream of ROS,and ROS bursts result in increased TRAF6 levels.Further,the activation of Sirtl during the period of ischemia reduced ischemiainduced injury after 72 h of reperfusion in mice with middle cerebral artery occlusion.In sum,these results indicate that pyroptosis-dependent machinery contributes to the neural injury during acute ischemia via the Sirt1-ROS-TRAF6 signaling pathway.We propose that inflammatory reactions occur soon after oxidative stress and are detrimental to neuronal survival;this provides a promising therapeutic target against ischemic injuries such as a stroke. | Weijie Yan Wei Sun Jiahui Fan Haiqing Wang Song Han Junfa Li Yanling Yin | 2020 | Neuroscience Bulletin2020，36，8： | 9 |
| 3 | Study on liquid-liquid bimetal composite casting hammers显示文摘Crusher hammers for the mineral processing industry must meet the demands of both high wear resistance at the hammer head and high impact toughness at the hammer handle. The crusher hammers made of Hadfield steel have typically low service life of less than 40 hours. To solve the problem, a kind of bimetal crusher hammers made of high chromium cast iron(HCCI) and low alloy steel(LAS) has been successfully developed by using liquid-liquid composite casting. The microstructure and composite interface bonding was analyzed using optical microscope, SEM, EDX and XRD. Micrographs indicate that the composite interface is metallurgically bonded with a zigzag shape across the boundary and without unbound region or void. After heat treatment, the composite hammers have shown excellent properties. The hardness of HCCI is at least 63 HRC and its αk is greater than 3.5 J·cm-2; the hardness of LAS is greater than 35 HRC and its αk is no less than 80 J·cm-2. Diffusion of elements takes place at the interface and forms a transition region. The micro hardness increases from LAS to the interface and then to HCCI. Wear comparison was made separately between the bimetal composite hammer and a Hadfield steel hammer in two quarries of Jilin province and Liaoning province. The results showed that the liquid-liquid bimetal composite hammers did not have the falling off of hammer head or impact fracture phenomenon, and their service life was 3.75 times as long as that of the Hadfield steel hammers. | Rong Shoufan Zhou Haitao ZhuYongchang Wang Junfa Yao Jia Li Chunhong | 2014 | China Foundry2014，11，5： | 9 |
| 4 | Soluble Mouse B7-H3 Down-Regulates Dendritic Cell Stimulatory Capacity to Allogenic T Cell Proliferation and Production of IL-2 and IFN-γ显示文摘B7-H3 是 B7 基因家庭的一个最近识别的成员。它的无所不在的表示在淋巴并且 nonlymphoid 纸巾建议它能在自我忍耐的维护起一个重要作用。然而, B7-H3 的准确功能仍然是逃犯的。当前的学习的目的是为调停 DC 的 T 房间激活的预防表明可溶的老鼠 B7-H3 的可能的功能。为这个目的,我们建立了可溶的老鼠 B7-H3 熔化蛋白质(mB7h3-hIg ) 有 C 终端人的 IgG1 Fc 的真核细胞的表示向量(pmB7h3-hIg ) 。C57BL/6 (B6 ) 导出树枝状的房间线(DC2.4 房间) 为可溶的 mB7h3-hIg 的产生被用于稳定的 transfectants 的建立。宫外的 mB7h3-hIg 表示被 RT-PCR,西方的污点和 ELISA 分析证实。49.7 kD 蛋白质被西方的污点与 pmB7h3-hIg 从 DC2.4 房间 transfected 检测。可溶的 mB7h3-hIg 表示没在房间骑车和 apoptosis 和 CD80 的表示和 DC2.4 房间的 CD86 上有效果,这被发现。然而,宫外的可溶的 mB7h3-hIg 表示被发现显著地为 DC2.4 房间影响 allo-stimulatory 能力。当与 MLC.Further 决定的控制相比研究表明可溶的 mB7h3-hIg 能也禁止 IL-2 和建议的 allogenic T cells.These 结果的 IFN- 生产,表示可溶的 mB7h3-hIg 的 DC2.4 房间显示出一个重要减少的 allo-stimulatory 能力为接枝拒绝和 autoimmume 疾病的治疗的可溶的 B7-H3 的一个大潜力。 | Junfa Xu Baojun Huang Ping Xiong Wei Feng Yong Xu Min Fang Fang Zheng Feili Gong | 2006 | Cellular & Molecular Immunology2006，3，3： | 8 |
| 5 | Facile fabrication of CdS-metal-organic framework nanocomposites with enhanced visible-light photocatalytic activity for organic transformation显示文摘因为低费用,相对安全,和环境友好, Visible-light-initiated 器官的转变收到了许多注意。在这个工作,也就是,我们在 visible-light-driven 光催化剂的一种新奇类型上报导 CdS-nanoparticle-decorated 金属器官的框架( MOF )的多孔的 nanocomposites ,由多孔的 MIL-100 ( Fe )在用作支持和镉醋酸盐的一个简单 solvothermal 方法准备了( Cd (交流)2)作为 CdS 先锋。当到 benzaldehyde 的本甲基酒精的选择氧化被用作探查反应时,结果证明 MIL-100 (Fe ) 和 CdS 半导体罐头的联合显著地在房间温度提高 photocatalytic 效率,作为与纯 CdS 的相比。提高的 photocatalytic 表演能由于 MIL-100 (Fe ) 的存在被归因于提高的轻吸收, photogenerated 电子洞对的更有效的分离,和 CdS 的增加的表面区域的联合效果。这个工作在太阳能的变换的域里为应用程序表明那条基于 MOF 的合成材料抓住伟人诺言进化学能。 | Fei Ke LuhuanWang Junfa Zhu | 2015 | Nano Research2015，8，6： | 6 |
| 6 | Elevated 8-oxo-7,8-dihydro-2'-deoxyguanosine in genome of T24 bladder cancer cells induced by halobenzoquinones显示文摘Halobenzoquinones(HBQs) are an emerging class of halogenated disinfection byproducts(DBPs) in drinking water, which raised public concerns due to potential carcinogenic effects to human bladder. Our previous work demonstrated that HBQs and hydrogen peroxide(H_2O_2)together generated oxidative DNA damage via a metal-independent and intercalationenhanced oxidation mechanism in vitro. This study further investigated the efficiency of various HBQs to induce oxidative DNA damage in T24 bladder cancer cells. Compared with T24 cells without treatment(3.1 lesions per 10~6 d G), the level of 8-oxo-7,8-dihydro-2′-deoxyguanosine(8-oxod G) significantly increased by 1.4, 3.2, 8.8, and 9.2 times after treatment with tetrabromo-1,4-benzoquinone(TBBQ), terachloro-1,4-benzoquinone(TCBQ),2,6-dichloro-1,4-benzoquinone(2,6-DCBQ) and 2,5-dichloro-1,4-benzoquinone(2,5-DCBQ) for24 hr, respectively. Interestingly, we found that the oxidative potency of HBQs in T24 cells(2,5-DCBQ ≈ 2,6-DCBQ > TCBQ > TBBQ) is inconsistent with that of in vitro ds DNA oxidation(TCBQ > TBBQ > 2,5-DCBQ > 2,6-DCBQ), suggesting HBQs induce oxidative lesions in cellular genomic DNA probably involved with a complex mechanism. | Tian Xu Junfa Yin Shaokun Chen Dapeng Zhang Hailin Wang | 2018 | Journal of Environmental Sciences2018，30，1： | 5 |
| 7 | Voussoir beam model for lower strong roof strata movement in longwall mining - Case study显示文摘The paper presents the influence of varying immediate roof thickness on the lower strong roof strata movement and failure pattern in longwall coal mining with large mining height. The investigation is based on 58 geological drill holes and hydraulic shield pressure measurements around the longwall Panel 42105 of the Buertai Mine in Inner Mongolia Autonomous Region, China. The longwall Panel 42105 is characterized by relatively soft immediate roof strata of varying thickness superposed by strong strata,herein defined as lower strong roof. A voussoir beam model is adopted to interpret the structural movement of the lower strong roof strata and shield pressure measurements. It is shown that when the immediate roof is relatively thick, the broken overlying lower strong roof tends to form a stable voussoir beam with previously broken layer, thus not exerting high pressure on the hydraulic shield and working face. When the immediate roof is relatively thin, the broken overlying lower strong roof tends to behave as a cantilever beam, thus exerting higher pressure on the hydraulic shield and working face. Comparison of model predictions with measured time-weighted average shield pressure(TWAP) shows good agreement. | Chuang Liu Huamin Li Hani Mitri Dongjie Jiang Huigui Li Junfa Feng | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，6： | 5 |
| 8 | Study on Thermal Simulation of Solidification in Heavy Section Ductile Iron显示文摘Using an artificial intelligent instrument and a computer feedback control method, a new thermal simulation systemis studied. Based on numerical simulation of casting solidification, a sample in the new system successfully simulatedthe solidification of heavy section ductile iron. The results show that the new thermal simulation system is accurateand reliable. Not only cooling curve but also graphite in the center of the thermal sample and the heavy sectionductile iron is identical. Realization of accurate thermal simulation of solidification in heavy section ductile iron willbe helpful for studying formation mechanism and controlling graphite degeneration in heavy section ductile iron. | Zhenhua LI Yanxiang LI Huiyuan GENG Jianjun CHEN Chunyan ZHOU Junfa CHEN | 2003 | Journal of Materials Science & Technology2003，19，z1： | 5 |
| 9 | Towards full-spectrum photocatalysis: Achieving a Z-scheme between Ag2S and TiO2 by engineering energy band alignment with interfacial Ag显示文摘Z 计划是一条有希望的途径完成用途广泛的光催化。有有 1.0 eV 的乐队差距的另一个半导体的 TiO 2 的集成将对紫外的收获和在可见附近理想为光催化的红外线的光;然而,大多数 narrow-bandgap 半导体让与组成一个障碍到为 photocatalytic 氢生产形成 Z 计划的 TiO 2, 跨骑乐队结构排列。在这通讯,我们表明 Ag 2 是的 S 在哪儿的一个模型系统精力乐队分享一个接口,一个金属罐头克服的 narrow-bandgap 半导体换高速档这限制。制作设计,我们开发了一条唯一的途径综合 Ag 2 SAgTiO 2 混血儿结构。戏剧性地展出的获得的第三的混合结构在完整光谱的轻照明下面在 photocatalytic 氢生产提高了性能。这些活动比 Ag 2 SAgTiO 2 结构在下面 < 400 nm 并且 > 他们在任何轻照明下面的对应物的象那些一样的 400 nm 照耀调节。 | Yanrui Li Leilei Li Yunqi Gong Song Bai Huanxin Ju Chengming Wang Qian Xu Junfa Zhu Jun Jiang Yujie Xiong | 2015 | Nano Research2015，8，11： | 5 |
| 10 | Organic solvent-and phase transfer catalyst-free oxidation of cyclohexanol to cyclohexanone with dilute H_2O_2显示文摘The oxidation of cyclohexanol to cyclohexanone with 30% aqueous hydrogen peroxide by using peroxotung-state complexes formed in situ from sodium tungstate di-hydrate and various bidentate organic ligands as the catalysts, without organic solvents, halide and phase transfer catalyst has been carried out. The influence of 13 ligands on the oxidation is investigated. The maximum yield of cyclohexanone is obtained when using 1,10-phenanthroline (96%) and oxalic acid (95%) as the ligand. Very high yields (around 90%) have also been obtained for the instances of using salicylic acid, 3,5-dibromosalicylic acid, and 8-hydro- xylquino-line as ligands. A research to improve the reaction condition using cheap oxalic acid as the ligand indicates that the optimum condition is that the reaction mixture with a molar ratio of cycohexanol:tungstate dihydrate:oxalic acid: 30% H2O2=100:2:2:120 was stirred at 85-90℃ for 12 h. | WEI Junfa, SHI Xianying, HE Diping & ZHANG MinSchool of Chemistry and Material Science, Shaanxi Normal University, Xi’an 710062, China | 2002 | Chinese Science Bulletin2002，47，24： | 3 |
| 11 | Electronic structure and chemical reaction of Ca deposition on regioregular poly(3-hexylthiophene) surfaces显示文摘Conjugated polymer, regioregular poly(3-hexylthiophene) (rr-P3HT), films were prepared by spin-coating the rr-P3HT chloroform solution onto clean silicon wafer surfaces. The chemical re-action and electronic structure of Ca deposition on rr-P3HT surfaces were in situ investigated by synchrotron radiation photoemission spectroscopy (SRPES) and X-ray photoemission spectros-copy (XPS). Upon Ca deposition, Ca-induced band bending of rr-P3HT is observed. In addition, Ca atoms preferentially react with S atoms of rr-P3HT. No obvious reaction between Ca and C atoms can be found. Through the investigation of the evolution of valence band spectra and secondary electron cut-off of rr-P3HT during the process of Ca deposition, an energy level alignment diagram at the Ca/rr-P3HT interface is derived. | ZHAO Wei GUO YuXian FENG XueFei ZHANG Liang ZHANG WenHua ZHU JunFa | 2009 | Chinese Science Bulletin2009，54，11： | 3 |
| 12 | Synergistic catalysis of cluster and atomic copper induced by copper-silica interface in transfer-hydrogenation显示文摘To data,using strong metal-support interaction(SMSI)effect to improve the catalytic performance of metal catalysts is an important strategy for heterogeneous catalysis,and this effect is basically achieved by using reducible metal oxides.However,the formation of SMSI between metal and inert-support has been so little coverage and remains challenge.In this work,the SMSI effect can be effectively extended to the inert support-metal catalysis system to fabricate a Cu^(0)/Cu-doped SiO_(2) catalyst with high dispersion and loading(38.5 wt.%)through the interfacial effect of inert silica.In the catalyst,subnanometric composite of Cu cluster and atomic copper(in the configuration of Cu-O-Si)can be consciously formed on the silica interface,and verified by extended X-ray absorption fine structure(EXAFS),in situ X-ray photoelectron spectroscopy(XPS),and high-angle annular dark field-scanning transmission electron microscopy(HAADF-STEM)characterization.The promoting activity in transfer-hydrogenation by the SMSI effect of Cu-silica interface and the synergistic active roles of cluster and atomic Cu have also been revealed from surface interface structure,catalytic activity,and density functional theory(DFT)theoretical calculation at an atomic level.The subnanometric composite of cluster and atomic copper species can be derived from a facile synthesis strategy of metal-inert support SMSI effect and the realistic active site of Cu-based catalyst can also been identified accurately,thus it will help to expand the application of subnanometric materials in industrial catalysis. | Ruoyu Fan Yange Zhang Zhi Hu Chun Chen Tongfei Shi Lirong Zheng Haimin Zhang Junfa Zhu Huijun Zhao Guozhong Wang | 2021 | Nano Research2021，14，12： | 3 |
| 13 | Nitrogen doped FeS_(2) nanoparticles for efficient and stable hydrogen evolution reaction显示文摘Performance breakthrough of electrocatalysts highly relies on the regulation of internal structures and electronic states.In present work,for the first time,we successfully synthesized nitrogen doped FeS_(2) nanoparticles(N-FeS_(2))as the electrocatalysts for hydrogen evolution reaction(HER).The band structure and electronic state of FeS_(2) are modulated by a nitrogen doping strategy,as confirmed by X-ray photoelectron spectroscopy(XPS),X-ray absorption spectroscopy(XAS)and density functional theory(DFT)calculations.Owing to the band structure and electronic state regulation as well as the weakening of H-S interaction,the designed N-FeS_(2) electrocatalyst exhibits superior catalytic performance with a low overpotential(~126 mV at 10 mA cm^(-2))and excellent activity stability under alkaline conditions,which is substantially improved as compared with that of the pure FeS_(2) counterpart.Our work demonstrates that the modulation of electron state and band structure of an electrocatalyst,which can provide a valuable guidance for designing excellent catalysts for hydrogen evolution reaction and beyond. | Jian Ye Yipeng Zang Qingyu Wang Yida Zhang Da Sun Leijie Zhang Gongming Wang Xusheng Zheng Junfa Zhu | 2021 | Journal of Energy Chemistry2021，30，5： | 2 |
| 14 | Integrated multi-scheme digital modulations of spoof surface plasmon polaritons显示文摘The future wireless communications require different kinds of modulation functions to be integrated in a single intelligent device under different scenarios.Here,we propose a multi-scheme digital modulator to achieve this goal based on integrated spoof surface plasmon polaritons(SPP)in different frequency bands.By constructing switchable spoof SPP units,the propagating wave in the proposed spoof SPP waveguide can be manipulated in amplitude domain,frequency domain,and phase domain.As a proof of concept,the integrated multi-scheme digital modulator is experimentally verified to achieve at least three kinds of modulations,including amplitude shift keying,phase shift keying,and frequency shift keying,in a single digital spoof plasmonic waveguide.The simulated and measured results show that the modulator has excellent property of field confinement and is capable of frequency-domain modulation.Hence,the multi-scheme modulation property makes the proposed SPP digital modulator be an effective and reliable candidate for efficient manipulations of SPP waves and for advanced modulation technology. | Lepeng ZHANG Haochi ZHANG Min TANG Peihang HE Lingyun NIU Liangliang LIU Jiayuan LU Wenxuan TANG Junfa MAO Tiejun CUI | 2020 | Science China(Information Sciences)2020，63，10： | 2 |
| 15 | Decreased phosphorylation and protein expression of ERK1/2 in the brain of hypoxic preconditioned mice 显示文摘 | Long Caixia Gao Yanan Li Junfa | 2006 | Neurosci Lett2006，397，： | 1 |
| 16 | Effect of medium and freeze-thaw cycle on performance of cement mortar settled by SAR synthesized in situ 显示文摘 | SONG Xuefeng WEI Junfa HE Tingshu | 2006 | New Build Mater(in Chinese)2006，，11： | 1 |
| 17 | A Method to Repair Concrete Through Cracks by Synthesizing Super-Absorbent Resin in Situ显示文摘 | Song Xuefeng Wei Junfa He Tingshu | 2009 | Constr Build Mater2009，23，1： | 1 |
| 18 | The FBP Interacting Repressor Targets TFIIH to Inhibit Activated Transcription显示文摘 | Juhong Liu Liusheng He Irene Collins Hui Ge Daniel Libutti Junfa Li Jean-Marc Egly David Levens | 2000 | Molecular Cell2000，，2： | 1 |
| 19 | Identification of protein kinase C isoforms involved in cerebral hypoxic preconditioning of mice 显示文摘 | Li Junfa Niu Chenchen Han Song | 2005 | Brain Res2005，1060，1： | 1 |
| 20 | Application of a fractal method relating concentrations and distances for separation of geochemical anomalies from hackground显示文摘 | Changjiang Li Tuhua Ma Junfa Shi | 2005 | Journal of Exploration2005，77，： | 1 |
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