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| 1 | Investigation of non-isothermal and isothermal gasification process of coal char using different kinetic model显示文摘Isothermal and non-isothermal gasification kinetics of coal char were investigated by using thermogravimetric analysis(TGA) in CO2 atmosphere, and the experimental data were interpreted with the aids of random pore model(RPM), unreacted shrinking core model(URCM) and volume model(VM). With the increase of heating rate, gasification curve moves into high temperature zone and peak rate of gasification increases; with the increase of gasification temperature, gasification rate increases and the total time of gasification is shortened. The increase of both heating rate and gasification temperature could improve gasification process of coal char. Kinetics analysis indicates that experimental data agree better with the RPM than with the other two models. The apparent activation energy of non-isothermal and isothermal gasification of coal char using RPM is 193.9 k J/mol and 212.6 k J/mol respectively, which are in accordance with reported data. Gasification process of coal char under different heating rates and different temperatures are predicted by the RPM derived in this study, and it is found that the RPM predicts the reaction process satisfactorily. | Wang Guangwei Zhang Jianliang Shao Jiugang Li Kejiang Zuo Haibin | 2015 | International Journal of Mining Science and Technology2015，25，1： | 6 |
| 2 | Thermodynamic Analysis of Desulfurization and Its Connection With Deoxidation and Temperature for SPHC in JISC During LF Refining Process显示文摘The thermodynamic characteristics of desulfurization reaction (CaO)+[S]=(CaS)+[O] is analyzed based on the detailed composition of liquid steel and slag of Steel Plate Hot Commercial (SPHC) in Jiuquan Iron & Steel Corporation(JISC), where the activities of CaO, CaS and Al2O3 in molten slag are calculated by thermodynamic software FactSage for a more accurate result. The critical values of [O%]/[S%] for desulfurization at different temperature is are obtained, typically 0.09 at 1873K, which shows directly that it should deoxidize adequately for obtaining a favorable desulfurization condition. In addition, the thermodynamic analysis indicates that the actual dissolved O is much higher than that of equilibrium calculation which shows Al-O reaction in LF is far away from equilibrium, but it is perfect agreement with the computing results when taking the activity of Al2O3 as 1 that due to the inclusion component in LF is mainly Al2O3. Besides, with the temperature rise, the sulfur partition ratio increases softly meanwhile the reaction between Al and O is limited to a great degree resulting in the increase a dissolved oxygen in liquid steel that decreases the sulfur partition ratio seriously. As a result, the sulfur partition ratio appears to decrease with temperature increase in Al killed steel. | GUO Jing1, CHENG Zi-jian1,2, CHENG Shu-sen1, CHENG Ze-wei1, ZOU Ming2, MA Ming-sheng2 (1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China 2. China’s Hongxing Stock Company of Jiugang,Jiugang 735000,Gansu,China) | 2011 | Journal of Iron and Steel Research(International)2011，18，S2： | 3 |
| 3 | MicroRNA-501 promotes HBV replication by targeting HBXIP显示文摘 | Jiang Jin Shanhong Tang Lin Xia Rui Du Huahong Xie Jiugang Song Rui Fan Qian Bi Zheng Chen Guitao Yang Jie Liu Yongquan Shi Daiming Fan | 2013 | Biochemical and Biophysical Research Communications2013，，： | 2 |
| 4 | Extraction behavior and mechanism of Cu(11) in ammoniacal sulfate solution with diketone显示文摘 | HU Jiugang CHEN Qiyuan HU Huiping | 2012 | HydrometaUurgy2012，，： | 1 |
| 5 | Extractionbehavior and mechanism of Cu(11) in ammoniacal sulfatesolution with p-diketone显示文摘 | HU Jiugang CHEN Qiyuan HU Huiping | 2012 | Hydrometallurgy2012，127，： | 1 |
| 6 | Structural changes of lignin in the jute fiber treated by laccase and mediator system显示文摘 | Yongbing Zhang Qiang Wang Xuerong Fan Jiugang Yuan | 2013 | Journal of Molecular Catalysis. B, Enzymatic2013，，： | 1 |
| 7 | Dyeing behaviors of ionic liquid treated wool 显示文摘 | YUAN Jiugang WANG Qiang FAN Xuerong | 2010 | Journal of Applied Polymer Sei- enee2010，117，4： | 1 |
| 8 | A modified random pore model for the kinetics of char gasification显示文摘 | ZHANG Jianliang WANG Guangwei SHAO Jiugang | 2014 | BioResource2014，9，2： | 1 |
| 9 | Dyeing behaviors of ionic liquid treated wool 显示文摘 | YUAN Jiugang WANG Qiang FAN Xuerong | 2010 | Journal of Applied Polymer Science2010，117，4： | 1 |
| 10 | Perylene-Based Fluorescent Sizing Agent for Precise Evaluation of Permeability and Coating Property of Sizing Paste显示文摘Warp sizing is considered as the most important process of weaving preparation in the textile field.The quality of sized warp yarns is directly determined by the permeation and coating of sizing paste into/on warp yarns.However,many significant flaws of the current method of permeability and coating property of sizing paste,such as low accuracy and narrow variety adaptability for sizing agents and warp yarns,have emerged in the evaluation process.In order to eliminate the inherent flaws in the current method,the investigation chose chitosan(CS)as a representative of common sizing agents,introduced various amounts of perylene units onto molecular chains of the CS,and prepared a new functional sizing agent-fluorescent CS with different labeling degrees of perylene.Furthermore,PVA-perylene was synthesized to evaluate the permeability and coating property of PVA sizing paste.Then,three indexes to indicate the permeability and coating property of sizing paste,i.e.permeation percentage,coating percentage and integrity percentage of sizing film,were evaluated using the CS-perylene and PVA-perylene derivatives prepared.Due to the fluorescence emitted by the perylene units,the three indexes can be determined accurately and conveniently depending on only fluorescent microscope and common image processing software.The investigation efficiently solves the difficult problem of evaluating permeation and coating property of the pastes of both bio-based and petroleum-based sizing agents with appropriate degrees of labeling and has a significant guiding function on accurate determination of the quality of sized yarns. | Enqi Jin Zhengke Wang Qiaoling Hu Manli Li Jiugang Yuan | 2020 | Advanced Fiber Materials2020，2，5： | 1 |
| 11 | Carbon Dot-Modified TiO_(2)@SiO_(2) Aerogel as an Anode for Lithium-Ion Batteries显示文摘Titanium oxides have been considered promising anode materials for lithium-ion batteries(LIBs).However,the poor conductivity and low specific capacity of bulk titanium oxides limit their application.In this study,a carbon dot-modified TiO_(2)@SiO_(2)aerogel was successfully fabricated through a facile ambient pressure drying strategy and used as an anode material of LIBs.Benefiting from the crosslinking of carbon dots and the surface modification of SiO_(2),the as-prepared hierarchical aerogel exhibited a high initial discharge capacity of 974 mAh g^(−1)and maintained a capacity of 299 mAh g^(−1)after 100 cycles at 0.1 A g^(−1).It also retained a discharge capacity of 111 mAh g^(−1)with a CE of 99.9%at 3 A g^(−1).The carbon dot-modified cross-linking skeleton contributes to the structural integrity of the TiO_(2)@SiO_(2)aerogel during repeated insertion/extraction of lithium ions,guaranteeing outstanding cycling and high-rate performance.This ambient pressure drying strategy provides a facile and feasible way to produce high-performance aerogel anode materials for lithium-ion storage. | Zanyu Chen Jiugang Hu Kuixing Ding Jun Tan Hongshuai Hou Xiaobo Ji | 2023 | Nanomanufacturing and Metrology2023，6，2： | 0 |
| 12 | Aerophilic Triphase Interface Tuned by Carbon Dots Driving Durable and Flexible Rechargeable Zn‑Air Batteries显示文摘Efficient bifunctional catalysts for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)are vital for rechargeable Zn-air batteries(ZABs).Herein,an oxygen-respirable sponge-like Co@C–O–Cs catalyst with oxygen-rich active sites was designed and constructed for both ORR and OER by a facile carbon dot-assisted strategy.The aerophilic triphase interface of Co@C–O–Cs cathode efficiently boosts oxygen diffusion and transfer.The theoretical calculations and experimental studies revealed that the Co–C–COC active sites can redistribute the local charge density and lower the reaction energy barrier.The Co@C–O–Cs catalyst displays superior bifunctional catalytic activities with a half-wave potential of 0.82 V for ORR and an ultralow overpotential of 294 mV at 10 mA cm^(−2) for OER.Moreover,it can drive the liquid ZABs with high peak power density(106.4 mW cm^(−2)),specific capacity(720.7 mAh g^(−1)),outstanding long-term cycle stability(over 750 cycles at 10 mA cm^(−2)),and exhibits excellent feasibility in flexible all-solid-state ZABs.These findings provide new insights into the rational design of efficient bifunctional oxygen catalysts in rechargeable metal-air batteries. | Kuixing Ding Yu Ye Jiugang Hu Liming Zhao Wei Jin Jia Luo Shan Cai Baicheng Weng Guoqiang Zou Hongshuai Hou Xiaobo Ji | 2023 | Nano-Micro Letters2023，15，2： | 0 |
| 13 | Channel regulation of TFC membrane with hydrophobic carbon dots in forward osmosis显示文摘Zero-dimensional carbon dots have emerged as important nanofillers for the separation membrane due to their small specific size and rich surface functional groups.This study proposed a strategy based on hydrophobic carbon dots(HCDs)to regulate water channels for an efficient forward osmosis(FO)membrane.Thin-film composite(TFC)membranes with superior FO performance are fabricated by introducing HCDs as the nanofiller in the polyacrylonitrile support layer.The introduction of HCDs promotes the formation of the support layer with coherent finger-like hierarchical channels and micro-convex structure and an integrated polyamide active layer.Compared to the original membrane,TFC-FO membrane with 10 wt%HCDs exhibits high water flux(15.47 L m^(-2)h^(-1))and low reverse salt flux(2.9 g m^(-2)h^(-1))using 1 mol/L Na Cl as the draw solution.This improved FO performance is attributed to the lower structural parameters of HCDs-induced water channels and alleviated internal concentration polarization.Thus,this paper provides a feasible strategy to design the membrane structure and boost FO performance. | Zongju Zhang Jiugang Hu Shijun Liu Xin Hao Lin Li Guoqiang Zou Hongshuai Hou Xiaobo Ji | 2021 | Chinese Chemical Letters2021，32，9： | 0 |
| 14 | N,S-Doped Carbon Dots as Additive for Suppression of Zinc Dendrites in Alkaline Electrolyte显示文摘The severe dendrite growth on zinc anode in alkaline electrolyte brings great challenge to the development of zinc-based batteries.It is a simple and effective strategy to inhibit zinc dendrite formation by introducing additives into the electrolyte.In this study,N,S-doped carbon dots(TU-CQDs)were synthesized and used as additives to regulate zinc deposition in a typical KOH electrolyte.The experimental and three-dimensional transient nucleation model disclosed that the special functional groups of carbon dots can change the electrode surface state and the coordination behaviors of zinc species in the electrolyte.Therefore,TU-CQDs can not only inhibit the hydrogen evolution reaction,but also achieve uniform zinc deposition.The in-situ synchrotron radiation X-ray imaging elucidated that TU-CQDs can effectively inhibit the dendrite growth and improve the reversibility of zinc plating/stripping process.This work provides a feasible route for regulating the reversibility of zinc metal anode in alkaline electrolyte. | Shan Cai Ge Chang Jiugang Hu Jiae Wu Yuqing Luo Guoqiang Zou Hongshuai Hou Xiaobo Ji | 2023 | Chinese Journal of Chemistry2023，41，14： | 0 |
| 15 | Enzymatic Preparation of Fibroin-Based Functional Materials with Polyphenol Oxidase显示文摘Silk fibroin can be widely used in textile industry,medical and clinical fields,owing to its good biocompatibility,mechanical and physiological properties.Enzymatic modification of silk fibroins allows processing under mild conditions,offering a safer and cleaner alternative.Polyphenol oxidases(tyrosinase,laccase)can catalyze the oxidation of the phenolic hydroxyl group in tyrosine residues of | Ping Wang Yuanyuan Yu Chao Deng Jiugang Yuan Li Cui Qiang Wang Xuerong Fan | 2016 | 功能材料信息2016，13，4： | 0 |
| 16 | Ultra-Low-Dose Pre-Metallation Strategy Served for Commercial Metal-Ion Capacitors显示文摘Sacrificial pre-metallation strategy could compensate for the irreversible consumption of metal ions and reduce the potential of anode,thereby elevating the cycle performance as well as open-circuit voltage for full metal ion capacitors(MICs).However,suffered from massive-dosage abuse,exorbitant decomposition potential,and side effects of decomposition residue,the wide application of sacrificial approach was restricted.Herein,assisted with density functional theory calculations,strongly coupled interface(M-O-C,M=Li/Na/K)and electron donating group have been put forward to regulate the band gap and highest occupied molecular orbital level of metal oxalate(M_(2)C_(2)O_(4)),reducing polarization phenomenon and Gibbs free energy required for decomposition,which eventually decrease the practical decomposition potential from 4.50 to 3.95 V.Remarkably,full sodium ion capacitors constituted of commercial materials(activated carbon//hard carbon)could deliver a prominent energy density of 118.2 Wh kg^(−1)as well as excellent cycle stability under an ultra-low dosage pre-sodiation reagent of 15-30 wt%(far less than currently 100 wt%).Noteworthily,decomposition mechanism of sacrificial compound and the relative influence on the system of MICs after pre-metallation were initially revealed by in situ differential electrochemical mass spectrometry,offering in-depth insights for comprehending the function of cathode additives.In addition,this breakthrough has been successfully utilized in high performance lithium/potassium ion capacitors with Li_(2)C_(2)O_(4)/K_(2)C_(2)O_(4) as pre-metallation reagent,which will convincingly promote the commercialization of MICs. | Zirui Song Guiyu Zhang Xinglan Deng Kangyu Zou Xuhuan Xiao Roya Momen Abouzar Massoudi Wentao Deng Jiugang Hu Hongshuai Hou Guoqiang Zou Xiaobo Ji | 2022 | Nano-Micro Letters2022，14，3： | 0 |
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