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| 1 | Mechanism of zinc damaging to blast furnace tuyere refractory显示文摘The phenomena of tuyere upward-warp have been found at No.6 blast furnace in Kunming Steel Company China after its blow-in,which has made a great impact on the practical production of the furnace.Thus,a number of efforts have been made to elucidate the mechanism of this phenomenon.The results of investigation and tests revealed that the enrichment and expansion of zinc in the tuyere bricks is the main factor leading to the tuyere upward-warp.The eroding behavior of zinc is that the inner structure of the tuyere bricks turns from dense to loose with entering,enriching and expanding of zinc,which forms spot-like→stripe-like→ditch-like→vein-like→tumorlike eroding passage.Additionally,it is found that the sequence of deleterious elements entering the tuyere refractory is K,Na,Zn and Pb,respectively.Finally,the phenomena and process of zinc crystallization and growth in the refractory have been clearly observed and recorded during this investigation. | Xuefeng FANG Mansheng CHU Fengman SHEN Zhuming ZHANG | 2009 | Acta Metallurgica Sinica(English Letters)2009，22，6： | 18 |
| 2 | Optical and scintillation properties of Bi_4Si_3O_(12):RE(RE=Eu^(3+), Sm^(3+),Ho^(3+), Tb^(3+))single crystals显示文摘Bi_4 Si_3 O_(12):RE(BSO:RE, RE = Eu^(3+), Sm^(3+), Ho^(3+), Tb^(3+)) crystals were grown by the modified vertical Bridgeman method, and doping effects on scintillation properties were investigated. Under γ-ray irradiation, the light yield of BSO doped with small doses of Eu^(3+) increases slightly, and the energy resolution improves significantly compared to pure BSO, therefore the ability of distinguishing between particles will be improved for BSO crystals with a small amount of Eu^(3+) dopant. The results show that a small amount of Eu^(3+) doping can sensitize the Bi^(3+) ions. The sensitization effect enables the reduction of intrinsic defects, and thus improves the scintillation properties. However, the relative light yield of BSO:Tb(1.0 mol%) crystal is 4.3%, which is smaller than 5.0% of pure BSO. The improved light yield and energy resolution in the BSO:Eu and BSO:Sm crystals are considered an impressive achievement in the optimization of this scintillator which is already suitable for applications such as dual-readout calorimeters and homogeneous hadron calorimeters. | Xuefeng Xiao Jiayue Xu Haicheng Wei Yaoqing Chu Bobo Yang Xuefeng Zhang | 2019 | Journal of Rare Earths2019，37，3： | 2 |
| 3 | Improvement of short-term forecasting in the northwest Pacific through assimilating Argo data into initial fields显示文摘在温度和咸度的短期的预报精确性上吸收南船座数据进起始的域的影响是使用西方的诺思太平洋的一个预报系统估计的份量上,在有一个概括坐标系统(POMgcs ) 的普林斯顿海洋模型的库上。这个系统使用顺序的 multigrid 三维变化(3DVAR ) 吸收观察数据的分析计划。二个数字实验在吸收数据进起始的域的进程除常规温度和海表面温度(SST ) 以外有或没有南船座温度和咸度侧面数据被进行。预报错误被在预报时期期间使用独立温度和咸度侧面估计,包括水平地平均的根均方差( H-RMSEs )的垂直分布和垂直地平均的吝啬的错误( MEs )和空间地平均的根均方差( S-RMSEs )的时间的变化的水平分布。在二个实验之间的比较证明南船座数据的吸收显著地改进预报精确性,与为温度,和咸度最大的 H-RMSE 的 24% 减小预报更显然被改进,平均深入地比 300 m 浅的为 H-RMSEs 50% 落下。如此的改进被温度和咸度的相对一致的采样在时空从南船座流浪者引起。 | FU Hongli CHU Peter C HAN Guijun HE Zhongjie LI Wei ZHANG Xuefeng | 2013 | Acta Oceanologica Sinica2013，32，7： | 2 |
| 4 | Efficient acidic oxygen evolution reaction electrocatalyzed by iridium-based 12L-perovskites comprising trinuclear face-shared IrO6 octahedral strings显示文摘Development of cost-effective and highly active oxygen evolution catalysts operating well in acidic media is a critical challenge in proton exchange membrane water electrolysis.Herein,we present a class of iridium-based 12L-perovskites(Ba4MIr3O12;M=Pr,Bi,Nb)as novel low-iridium electrocatalysts for oxygen evolution reaction under acidic conditions.These 12L-perovskites contain trinuclear face-shared Ir O6octahedral strings—unique subunits that are not found in the previously-reported iridium-based electrocatalysts.The catalytic activities of 12L-perovskites(Ba4MIr3O12)are found to be related to the location of O 2p-band center,which is influenced by the B-site nonprecious element(i.e.,Pr,Bi or Nb).Our experimental results show that Ba4PrIr3O12is the most active electrocatalyst among the materials we synthesize,and contains 55%less iridium than the benchmark catalyst IrO2,while exhibiting higher catalytic activity.In the presence of Ba4PrIr3O12,transient leaching process of Ba and Pr takes place during electrochemical process,contributing to the surface reconstruction of the pristine catalysts.Further experimental results reveal that the formation of under-coordinated Ir Ox-rich surface and easier generation of active intermediate IrVare mainly responsible for the good activity of Ba4PrIr3O12. | Ruiqin Gao Qi Zhang Hui Chen Xuefeng Chu Guo-Dong Li Xiaoxin Zou | 2020 | Journal of Energy Chemistry2020，29，8： | 2 |
| 5 | Screening and evaluation of antioxidants from lees by micro-injector systems combined with a fluorescent probe,N-borylbenzyloxycarbonyl-3,7-dihydroxyphenoxazine,in living Drosophila显示文摘Over the past few decades, the determination of antioxidant activity by chemical probe has been widely reported, but in vivo evaluation via model organisms of Drosophila melanogaster and rapid discovery system has not been studied adequately. In this study, we determined the antioxidant activity of lees and demonstrated the ability of compounds in lees to scavenge H_2O_2 in vitro and in vivo by different chemical probes. Lees increased the ability of Drosophila against oxidative stress and antioxidant enzyme activity in vivo. Five ingredients of organic acids and flavones in lees extract that rapidly scavenged H_2O_2 were revealed by a post-column-derived HPLC-UV-FLD system based on 4-hydroxyphenylacetic acid(PHPAA)chemiluminescence. Additionally, another fluorescent probe,N-borylbenzyloxycarbonyl-3,7-dihydroxyphenoxazine(NBCD), was selected to evaluate the reactive oxygen species(ROS) scavenging capacity of lees in living Drosophila melanogaster using a microfluidic injection test coupled with microscopic imaging analysis, and similar effects were observed in flies when they were treated with tartaric acid and caffeic acid. The results demonstrated that the novel integrated system was suitable for screening and evaluating antioxidant ingredients from natural products. | Guangcui Chu Dandan Cheng Wenjuan Liu Xuefeng Wang Xiaotao Hou Yuanyuan Hou Hongjun Wei Jiagang Deng Gang Bai | 2018 | Chinese Chemical Letters2018，29，10： | 2 |
| 6 | Pd/TiO2 Nanospheres with Three-dimensional Hyperstructure for Enhanced Photodegradation of Organic Dye显示文摘Pd/TiO2 nanospheres assembled from nanorods with three-dimensional hyperstructure for enlianced photodegradation of organic dye was prepared by a sample solvothemial method. Further, it was used for degradation of methyl orange(MO) under the illumination of visible-light(simulated).The results show that Pd/TiO2 with 2%(mass fraction) Pd exhibits the noticeable activity in photodegrading of MO.The detailed analysis shows that this enhancement is attributed to the reduction of the rate of electron-hole recombination and surface plasmon resonance of Pd. The high activity and good stability of the obtained Pd/TiO2 nano spheres make it a promising photocatalyst for solving the environmental pollution problems. | WANG Huan XIAO Liguang WANG Chao LIN Bin LYU Sa CHU Xuefeng CHI Yaodan YANG Xiaotian WANG Xinyan | 2019 | Chemical Research in Chinese Universities2019，35，4： | 1 |
| 7 | Adjacent acid sites cooperatively catalyze fructose to 5-hydroxymethylfurfural in a new, facile pathway显示文摘To study the effect of adjacent hydroxyl to the active sites, several acid catalysts, i.e. substituted benzoic acids with adjacent carboxyl are employed in the fructose dehydration to 5-hydroxymethylfurfural(HMF).Experimental results reveal that Br?nsted acid sites with adjacent carboxyl present higher catalytic ability than isolated ones. Computational results suggest that the adjacent sites lead to co-interaction on fructose, corresponding more stable transition state and faster HMF formation rate. Based on the enhancement from the adjacent sites, a novel ordered mesoporous carbon(OMC) full of carboxyls in surface is prepared and turns out to be an effective solid catalyst for HMF production from fructose derived from biomass. | Xia Yu Yueying Chu Lei Zhang Hui Shi Mingjiang Xie Luming Peng Xuefeng Guo Wei Li Nianhua Xue Weiping Ding | 2020 | Journal of Energy Chemistry2020，29，8： | 1 |
| 8 | Deficiency of Factor ⅩⅢ Gene in Chinese:3 Novel Mutations显示文摘 | Baohua Duan Xuefeng Wang Haiyan Chu | 2003 | International Journal of Hematology2003，78，3： | 1 |
| 9 | Urbanization Effects on Observed Surface Air Temperature Trends in North China显示文摘 | Ren Guoyu Zhou Yaqing Chu Ziying Zhou Jiangxing Zhang Aiying Guo Jun Liu Xuefeng | 2008 | Journal of Climate2008，，6： | 1 |
| 10 | Localized-domains staging structure and evolution in lithiated graphite显示文摘Intercalation provides to the host materials a means for controlled variation of many physical/chemical properties and dominates the reactions in metal‐ion batteries.Of particular interest is the graphite intercalation compounds with intriguing staging structures,which however are still unclear,especially in their nanostructure and dynamic transition mechanism.Herein,the nature of the staging structure and evolution of the lithium(Li)‐intercalated graphite was revealed by cryogenic‐transmission electron microscopy and other methods at the nanoscale.The intercalated Li‐ions distribute unevenly,generating local stress and dislocations in the graphitic structure.Each staging compound is found macroscopically ordered but microscopically inhomogeneous,exhibiting a localized‐domains structural model.Our findings uncover the correlation between the long‐range ordered structure and short‐range domains,refresh the insights on the staging structure and transition of Li‐intercalated/deintercalated graphite,and provide effective ways to enhance the reaction kinetic in rechargeable batteries by defect engineering. | Suting Weng Siyuan Wu Zepeng Liu Gaojing Yang Xiaozhi Liu Xiao Zhang Chu Zhang Qiuyan Liu Yao Huang Yejing Li Mehmet NAteş Dong Su Lin Gu Hong Li Liquan Chen Ruijuan Xiao Zhaoxiang Wang Xuefeng Wang | 2023 | Carbon Energy2023，5，1： | 1 |
| 11 | Inhibitory effects of HS014 on glutamate release in astrocytes chronically treated with morphine显示文摘Previous studies have confirmed that the number of glial fibrillary acidic protein-positive cells significantly increases during morphine tolerance.However,morphine tolerance is reversed with melanocortin receptor antagonists,and analgesic action is enhanced accordingly.However,these mechanisms remain unclear.In the present study,following addition of morphine to Wistar rat spinal cord astrocytes,glutamate levels in the supernatant significantly increased(P < 0.05).At 30-120 minutes following addition of intervention agent to spinal cord astrocytes,naloxone significantly increased glutamate release in morphine-tolerant model cells(P < 0.05),while melanocortin receptor antagonist HS014 decreased glutamate release(P < 0.05).Additional naloxone and HS014 to astrocytes significantly decreased glutamate release compared with additional naloxone alone(P < 0.01).Results from the present study demonstrated that glutamate release was increased in spinal cord astrocytes co-cultured with morphine.Naloxone increased glutamate release,and HS014 reduced glutamate release. | Haichen Chu Zejun Niu Zhao Yang Xuefeng Zhang | 2010 | Neural Regeneration Research2010，5，19： | 1 |
| 12 | Urbanization Effects on Observed Surface Air Temperature Trends in North China显示文摘 | Ren Guoyu Zhou Yaqing Chu Ziying Zhou Jiangxing Zhang Aiying Guo Jun Liu Xuefeng | 2008 | Journal of Climate2008，，： | 1 |
| 13 | Light-emitting diodes enhanced by localized surface plasmon resonance显示文摘 | Xuefeng Gu Teng Qiu Wenjun Zhang Paul K Chu | 2011 | Nanoscale Research Letters2011，，1： | 1 |
| 14 | Carboxyl-functionalized Nanocellulose Reinforced Nanocomposite Proton Exchange Membrane显示文摘Nanocellulose(NCC) was prepared through the acid hydrolysis of microcellulose(MCC) and was reacted with maleic anliydride to obtain carboxyl-functionized nanocellulose(MA-NCCs). The presence of .OH and .SO3H on the surface of rod-like MA-NCC was confirmed by Fourier transfonn infrared spectrometry(FTIR). Sulfonated poly(aryl ether ether ketone ketone)(Ph-SPEEKK) was synthesized with bis(4-fluorophenyl-methanone) and 2-phenylhydroquinone as monomer. MA-NCC/Ph-SPEEKK nanocomposite membranes with different MA-NCCs content were prepared, and their properties were characterized. Compared with Ph-SPEEKK, MA-NCC/Ph-SPEEKK nanocomposite membrane showed better mechanical and thermal properties and higher proton conductivity. The proton conductivity of the composite membrane with 4%(mass fraction) MA-NCCs under 80℃ was 0.095 S/cm. And its tensile strength reached 30.3 MPa, which was 21.2% higher than that of Ph-SPEEKK pure polymer membrane. | YANG Xue WEI Yingcong CHU Xuefeng ZHAO Qi YAN Wenling DONG Chenjun LIU Baijun SUN Zhaoyan HU Wei ZHANG Niaona | 2019 | Chemical Research in Chinese Universities2019，35，4： | 0 |
| 15 | Selective capture of Tl2O from flue gas with formation of p-n junction on V_(2)O_(5)-WO_(3)/TiO_(2)catalyst under working conditions显示文摘Thallium(Tl)compounds,highly toxic to biology,are usually released into flue gas during fossil/minerals combustion,and further distributed in water and soil.In this work,we fundamentally investigated the capture of gaseous Tl_(2)O by industrial V2O5-WO3/TiO_(2)catalyst under working condition in Tl-containing flue gas.Experimental and theoretical results indicated that the Tl_(2)O has significant electron-feeding capacity and easily donate electron to unoccupied orbitals of TiO_(2),leading to dismutation of Ti 2p and inartificial formation of p-n junction on TiO_(2)surface,which prompted Tl_(2)O selectively interacted with TiO_(2)in flue gas.Herein,we proposed and verified an effective way to capture gaseous Tl_(2)O,which offered almost the best choice to eliminate Tl emission from flue gas and expanded the function of the TiO_(2)-based catalyst.The formation of p-n junction on commercial V2O5-WO3/TiO_(2)catalyst under working condition was revealed for the first time,which can be a valuable reference for both heterocatalysis and electro/photocatalysis. | Jianjun Chen Rongqiang Yin Gongda Chen Junyu Lang Xiaoping Chen Xuefeng Chu Junhua Li | 2023 | Green Energy & Environment2023，8，1： | 0 |
| 16 | Reinventing the mechanism of high-performance Bi anode in aqueous K^+ rechargeable batteries显示文摘Increasing attention has been paid to rechargeable aqueous batteries due to their high safety and low cost.However,they remain in their infancy because of the limited choice of available anode materials with high specific capacity and satisfying cycling performance.Bi metal with layered structure can act as an ideal anode material with high capacity;however,the energy storage mechanism has not well elucidated.Herein,we demonstrate that Bi metal enables affording ultra-high specific capacity(254.3 mAh g^-1),superior rate capability and a capacity retention of 88.8%after 1600 cycles.Different from the previously-reported redox reaction mechanisms of Bi electrode,efficient(de)alloying of K+is responsible for its excellent performance.An excellent aqueous Bi battery is fabricated by matching Bi anode with Co(OH)2 cathode in KOH(1 M)electrolyte.Its outstanding performance is quite adequate and competitive for electrochemical energy storage devices. | Tingting Qin Xuefeng Chu Ting Deng Boran Wang Xiaoyu Zhang Taowen Dong Zhengming Li Xiaofeng Fan Xin Ge Zizhun Wang Peng Wang Wei Zhang Weitao Zheng | 2020 | Journal of Energy Chemistry2020，29，9： | 0 |
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