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Oxygen vacancies enriched Ir/WOx catalysts for the directly chem-catalytic conversion of cellulose to ethanol

Tungsten 2025年第1期 88-99页

作者： yu-Jing Weng Zhao-Ying Ding Ying-Chao Li yuan-Feng Wu yuan-Yang Xu Rui Chen Xiao-Lei Zhao Hai-Yong Wang Da-Lei zhang yu-long zhang Henan Key Laboratory of Coal Green Conversion and International Joint Laboratory of Coal Clean Utilization College of Chemistry and Chemical Engineering Henan Polytechnic University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Liaoning Institute of Energy Technology

Tungsten and its oxides are highly versatile catalysts with unique properties that hold great promise for a wide array of applications,including biological pathways and chemical *** chemo-catalysis of cellulose to ethanol presents a promising avenue for ethanol synthesis with the potential for enhanced efficiency compared to conventional methods,offering a sustainable and carbon-neutral alternative to existing petrochemical and biological ***,Ir/WOxcatalysts enriched with oxygen vacancies were meticulously prepared and demonstrated remarkable catalytic performance in converting cellulose to ethanol directly in the presence of tungstic *** catalyst achieved a high ethanol yield of 66.5%under optimal reaction conditions,approaching the theoretical yield limit of traditional ethanol *** results revealed the presence of oxygen defects,Bronsted/Lewis acidity,and Ir nanoclusters on the catalyst surface,working synergistically to facilitate the cascade catalysis of cellulose hydrolysis,sugar retro-aldol condensation reaction,and C2 intermediate hydrodeoxygenation to *** situ Fourier transform infrared spectrometer analysis confirmed the catalyst's ability to enhance the adsorption and activation of ethylene glycol for ethanol *** manipulating subtle structural features,this study offers a fresh perspective on tungsten group catalyst design and underscores the importance of synergistic effects among catalytic sites for the efficient production of ethanol from cellulose.

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Concept of hydrophobic Li^(+)-solvated structure for high performances lithium metal batteries

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Rare Metals 2023年第5期42卷 1427-1430页

作者： Bin Ma yu-long zhang Xin-Hua Liu School of Transportation Science and Engineering Beihang UniversityBeijing102206China College of Mechatronical and Electrical Engineering Hebei Agricultural UniversityBaoding071001China Dyson School of Design Engineering Imperial College LondonLondonSW72AZUK

The large-scale application of lithium metal batteries remains a challenge due to the hydrolysis of LiPF_(6),which can induce capacity fade and series of safety *** and his co-workers have designed a hydrophobic Li^(+)-solvated structure to obtain high performances lithium metal *** specific functional groups of theadditive,hexafluoroisopropyl acrylate.

关键词： lithium structure hydrolysis

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Some Notes on Identities for Dirichlet L-functions

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Acta Mathematica Sinica,English Series 2014年第5期30卷 747-754页

作者： Rong MA yu long zhang Melchior GRTZMANN School of Science Northwestern Polytechnical University The School of Electronic and Information Engineering Xi'an Jiaotong University

Let q ≥ 3 be an integer, and χ be a Dirichlet character modulo q, L（s, χ） denote the Dirichlet L-function corresponding to χ. In this paper, we show some early information on the mean value of the Dirichlet L-functions and give some new identities forwhere a = 2, 3, or 4. Then we give general identities for the case that the integer a divides q - 1. Keywords Dirichlet L-functions, Dedekind sum, trigonometric formula, MSbius inversion formula

关键词： Dirichlet L-functions Dedekind sum trigonometric formula M¨obius inversion formula

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A new subfamily of the grasshopper （Orthoptera： Acridoidea： Gomphoceridae） from the Tibetan Plateau of China

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Insect Science 2012年第6期19卷 699-702页

作者： Dao-Chuan zhang yu-long zhang Xiang-Chu Yin College of Life Sciences Hebei University Baoding College of Plant Protection Hebei Agricultural University Baoding College ofPlant Protection Shandong Agricultural University Taian China

This paper reports a new subfamily, a new genus and a new species, that is, Pacrinae subfam, nov., Pacris gen. nov and Pacris xizangensis sp. nov in Gomphoceridae. The new subfamily is allied to Orinhippinae of Gomphoeeridae and it differs from the latter by wings and tympanum absent. The new genus is similar to Orinhippus Uvarov, 1921 but differs from the latter in：（i） foveolae absent; （ii） tegmina absent; （iii） tympanum absent; （iv） hind margin of pronotum with incised in the middle. Type specimens are deposited in the Museum of Hebei University, Baoding, China.

关键词： Orthoptera Acridoidea Gomphoceridae Pacrinae new subfamily,grasshopper China

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Microwave-assisted regeneration of hypercrosslinked polymeric adsorbent saturated with nitrophenols

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Journal of Environmental Sciences 2006年第4期18卷 765-770页

作者： HAN Yong-zhong JIANG Li-yu CHEN Jin-long zhang Quan-xing National Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing 210093 China

Thermal regeneration ofhypercrosslinked polymeric adsorbent （HPA） was performed at 67℃. Experiments were carried out using a multimode microwave oven operating at 2450 MHz and a thermostatic water bath so as to compare the effect of the different heating mechanisms on the regeneration efficiency of the HPA saturated with nitrophenols. The temperature rise action of the heterogeneous regeneration system under microwave irradiation was described. Additionally, a complete structure and chemical characterization of the regenerated HPA was also carried out in order to study the influence of the subsequent regeneration cycles on the structure and the adsorption capacities of the adsorbents. Structure characterization of the regenerated HPA was accomplished by means of the analysis of FTIR spectra.

关键词： polymeric adsorbent microwave irradiation adsorption structure

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Micro defects formation and dynamic response analysis of steel plate of quasi-cracking area subjected to explosive load

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Defence Technology（防务技术） 2024年第1期31卷 580-593页

作者： Zheng-qing Zhou Ze-chen Du Xiao Wang Hui-ling Jiang Qiang Zhou yu-long zhang yu-zhe Liu Pei-ze zhang Research Institute of Macro-Safety Science University of Science and TechnologyBeijing100083China School of Civil and Resource Engineering University of Science and Technology BeijingBeijing100083China School of Mechanical Engineering Nantong UniversityNantong226019China China North Industry Advanced Technology Generalization Institute Beijing100089China China Academy of Ordnance Science China

As the protective component,steel plate had attracted extensive attention because of frequently threats of explosive *** this paper,the evolution of microstructure and the mechanism of damage in the quasi-cracking area of steel plate subjected to explosive load were discussed and the relationships between micro defects and dynamic mechanical response were *** the explosion experiment,five observation points were selected equidistant from the quasi-cracking area of the section of the steel plate along the thickness direction,and the characteristics of micro defects at the observation points were analyzed by optical microscope(OM),scanning electron microscope(SEM) and electron backscattered diffraction(EBSD).The observation result shows that many slip bands(SBs) appeared,and the grain orientation changed obviously in the steel plate,the two were the main damage types of micro *** addition,cracks,peeling pits,grooves and other lager micro defects were appeared in the lower area of the *** stress parameters of the observation points were obtained through an effective numerical *** mechanism of damage generation and crack propagation in the quasicracking area were clarified by comparing the specific impulse of each observation point with the corresponding micro *** result shows that the generation and expansion of micro defects are related to the stress area(*** upper compression area,the neutral plane area,and the lower tension area).The micro defects gather and expand at the grain boundary,and will become macroscopic damage under the continuous action of tensile ***,the micro defects at the midpoint of the section of the steel plate in the direction away from the explosion center(*** horizontal direction) were also *** was found that the specific impulse at these positions were much smaller than that in the thickness direction,the micro defects were only SBs and a few micro cracks,and the those decrea

关键词： Explosive load Quasi-cracking area Micro defects Steel plate Dynamic response Numerical simulation

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In situ observations of austenite grain growth in Fe-C-Mn-Si super bainitic steel

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International Journal of Minerals,Metallurgy and Materials 2013年第11期20卷 1060-1066页

作者： Feng Liu Guang Xu yu-long zhang Hai-jiang Hu Lin-xin Zhou Zheng-liang Xue The Key Laboratory of the Ministry of Education of China for Ferrous Metallurgy and Resources Utilization Wuhan University of Science and Technology State Key Laboratory of Development and Application Technology of Automotive Steels (Baosteel Group) Daye Special Steel Co. Ltd. Hubei Xinyegang Steel Co. Ltd.

In situ observations of austenite grain growth in Fe-C-Mn-Si super bainitic steel were conducted on a high-temperature laser scanning confocal microscope during continuous heating and subsequent isothermal holding at 850, 1000, and 1100℃ for 30 min. A grain growth model was proposed based on experimental results. It is indicated that the austenite grain size increases with austenitizing temperature and holding time. When the austenitizing temperature is above 1100℃, the austenite grains grow rapidly, and abnormal austenite grains occur. In addition, the effect of heating rate on austenite grain growth was investigated, and the relation between austenite grains and bainite morphology after bainitic transformations was also discussed.

关键词： bainitic steel austenite grain growth kinetics bainitic transformations

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Effect of annealing time and phosphorus addition on bake hardening behavior of ultra-low carbon bake hardening steel

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Journal of Iron and Steel Research International 2018年第12期25卷 1287-1295页

作者： Xi-liang zhang Hua-feng Hou Tao Liu Qian Zhou Hong-ji Liu yu-long zhang Hao-xuan Cui Zheng Lv College of Mechanical and Equipment Engineering Hebei University of EngineeringHandan 056038HebeiChina

The relationship of the P and C grain boundary segregation and its effect on bake hardening behavior were investigated in ultra-low carbon bake hardening (ULC-BH)steel with and without P addition annealed at 810 ℃ for various time using electron probe micro-analyzer,electroh backscattered diffraction,and three-dimensional atomic probe *** revealed that P addition and annealing duration considerably affected the bake hardening behavior of experimental steel. The BH value of ULC-BH steel without P addition is lower than that with P addition within a short annealing time,and the difference in the BH value gradually decreases as the annealing duration is prolonged.P segregation is dominant in terms of a high P bulk content in steels with P addition at the expense of C segregation during *** contrast,opposite effects are observed in low carbon bake hardening *** high residual solute C content in steel with P addition is due to P segregation at the grain *** competition is mainly responsible for the lower BH value in ULC-BH steel without P addition than that with P *** the annealing time is further extended,C segregation begins at grain boundary despite the delayed P segregation,leading to a gradual decrease in the solute concentration in the matrix of steels with P addition.C and P segregations reach the equilibrium as the annealing time increases to 60 min at 810 ℃ in the two steel *** calculations reveal that the residual solute C concentration in the matrix decreases to zero,and this finding is consistent with the change trend of the bake hardening ***,the C segregation at grain boundary. adversely influences the bake hardening property of ULC-BH steel.

关键词： Ultra-low carbon bake hardening steel Carbon Phosphorus addition Bake hardening behavior Grain boundary segregation

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Effect of GP73 silencing on proliferation and apoptosis in hepatocellular cancer

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World Journal of Gastroenterology 2014年第32期20卷 11287-11296页

作者： yu-long zhang You-Cheng zhang Wei Han yu-Min Li Geng-Nian Wang Shao yuan Feng-Xian Wei Jia-Feng Wang Jian-Jun Jiang Ya-Wu zhang Department of General Surgery Lanzhou University Second Hospital Hepato-Biliary-Pancreatic Institute Lanzhou University Second Hospital Gansu Provincial-Level Key Laboratory of Digestive System Tumors

AIM: To investigate the roles of Golgi protein (GP) 73 in the regulation of cell proliferation and apoptosis.

关键词： Hepatocellular carcinoma Golgi protein-73 Cell proliferation Apoptosis

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Chemotherapy for patients with gastric cancer after complete resection: A network meta-analysis

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World Journal of Gastroenterology 2014年第2期20卷 584-592页

作者： Ya-Wu zhang yu-long zhang Hui Pan Feng-Xian Wei You-Cheng zhang yuan Shao Wei Han Hai-Peng Liu Zhe-yuan Wang Sun-Hu Yang Department of General Surgery Lanzhou University Second Hospital

AIM: To conduct a network meta-analysis to evaluate the effectiveness of different chemotherapy regimens for patients with gastric cancer.

关键词： Gastric cancer Chemotherapy Randomized controlled trials Indirect treatment comparison Network meta-analysis

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