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| 1 | Simulation of coal char gasification using O_(2)/CO_(2)显示文摘The authors proposed an integrated gasification fuel cell zero-emission system.The coal char gasification is discussed using high temperature and concentration of CO_(2) produced by solid oxide fuel cells and oxy-fuel combustion.The gasification is simulated by Aspen plus based on Gibbs free energy minimization method.Gasification model of pulverized coal char is computed and analyzed.Effects of gas flow rate,pressure,preheating temperature,heat losses on syngas composition,reaction temperature,lower heating value and carbon conversion are studied.Results and parameters are determined as following.The optimum O_(2) flow rate is 20 kg/h.The reaction temperature decreases from 1645 to 1329℃when the CO_(2)flow rate increases from 0 to 5 kg/h,the CO_(2) flow rate should be operated reasonably;lower heating value reduces and reaction temperature increases as the pressure increases;compared to the CO_(2) preheating,O_(2) preheating has greater influence on reaction temperature and lower heating value. | Haibin Li Yu Yu Minfang Han Ze Lei | 2014 | International Journal of Coal Science & Technology2014，1，1： | 7 |
| 2 | Research on sintering process of YSZ electrolyte显示文摘Yttria stabilized zirconia (YSZ) has widely been used as electrolyte in solid oxide fuel cell (SOFC). The microstructure of YSZ related to the fabrication process was discussed in the paper. With YSZ nano-powders about 40-100 nm as raw material, the YSZ adobe was manufactured by tape calendering process. The named three-step sintering process was performed at 1000 ℃ for 2 h, then raised the temperature with normal rate and as soon as up to 1400 ℃, the furnace was controlled at 1250-1300 ℃ for 10-20 h. The high dense YSZs with the relative density of 96%-99% were obtained; the grain size of YSZ could be reduced to 0.5-3 μm. The above result is benefited to co-fired in the electrode-supported SOFCs. | HAN Minfang TANG Xiuling PENG Suping | 2006 | Rare Metals2006，25，z2： | 7 |
| 3 | Fabrication and optimization of La_(0.4)Sr_(0.6)Co_(0.2)Fe_(0.7)Nb_(0.1)O_(3-δ) electrode for symmetric solid oxide fuel cell with zirconia based electrolyte显示文摘La_(0.4)Sr_(0.6)Co_(0.2)Fe_(0.7)Nb_(0.1)O_(3-δ)(LSCFN)was applied as both anode and cathode for symmetrical solid oxide fuel cells(SSOFCs)with zirconia based electrolyte.The cell with LSCFN electrode was fabricated by tape-casting and screen printing.Fabrication process was optimized firstly by comparing co-sintering and separate-sintering of electrode and electrolyte.To further improve the LSCFN electrode properties,oxygen ionic conductor of Gd_(0.1)Ce_(0.9)O_(2-δ)(GDC)was added into the LSCFN electrode.The preferred composition of LSCFN-GDC composite electrode was found to be 1:1 in weight ratio with polarization resistance of 0.16Ωcm^2at 800~℃.The maximum power densities of LSCFN-GDC||GDC/YSZ/GDC||LSCFN-GDC tested in H_2and CH_4with 3%H_2O were 395 m W cm^(-2)and 124 m W cm^(-2)at 850~?C,respectively,which were much higher than that of LSCFN||GDC/YSZ/GDC||LSCFN cells at same condition,possibly due to the extension of the triple phase boundary induced by the addition of GDC.The cell showed reasonable stability using H_2and CH_4with 3%H_2O as fuels and no significant power output degradation was observed after total 200 h operation. | Na Xu Tenglong Zhu Zhibin Yang Minfang Han | 2017 | Journal of Materials Science & Technology2017，33，11： | 4 |
| 4 | H_2O/CO_2 co-electrolysis in solid oxide electrolysis cells显示文摘A solid oxide electrolysis cell(SOEC) is an environmental-friendly device which can convert electric energy into chemical energy with high efficiency. In this paper,the progress on structure and operational principle of an SOEC for co-electrolyzing H2O and CO2to generate syngas was reviewed. The recent development of high temperature H2O/CO2co-electrolysis from solid oxide single electrolysis cell was introduced. Also investigated was H2O/CO2co-electrolysis research using hydrogen electrode-supported nickel(Ni)-yttria-stabilized zirconia(YSZ)/YSZ/Sr-doped LaMnO3(LSM)-YSZ cells in our group. With 50 % H2O,15.6 % H2and 34.4 % CO2inlet gas to Ni- YSZ electrode,polarization curves(I- U curves) and electrochemical impedance spectra(EIS) were measured at 800 ℃ and 900 ℃. Long-term durability of electrolysis was carried out with the same inlet gas at 900 ℃ and 0.2 A/cm2. In addition,the improvement of structure and development of novel materials for increasing the electrolysis efficiency of SOECs were put forward as well. | Han Minfang Fan Hui Peng Suping | 2014 | Engineering Sciences2014，12，1： | 4 |
| 5 | Influence of Lithium Oxide Addition on the Sintering Behavior and Electrical Conductivity of Gadolinia Doped Ceria显示文摘Ceria-based electrolytes have been widely researched in intermediate-temperature solid oxide fuel cell (SOFC), which might be operated at 500-600?C. Sintering behavior with lithium oxide as sintering additive and electrical conductivity of gadolinia doped ceria (Gd0.1Ce0.9O2δ, GDC10) electrolyte was studied in this paper by X-ray di?raction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). As the results, the fully dense GDC10 electrolytes are obtained at a low temperature of 800?C with 2.5 mol% Li2O as sintering additive (called 5LiGDC800). During sintering process, lithium oxides adsorbed by around GDC10 surface help to sinter at 800?C and are kept at the grain boundary of GDC10 in the end. The fine grains of 100-400 nm and high electrical conductivity of 0.014 S/cm at 6000C in 5LiGDC800 were achieved, which contributed to the lower sintering temperature and enhanced grain boundary conductivity, respectively. Lithium, staying at grain boundary, reduces the depletion of oxygen vacancies in the space charge layers and increases the oxygen vacancy concentration in the grain boundary, which leads to improve the total electrical conductivity of 5LiGDC800. | Minfang Han Ze Liu Su Zhou Lian Yu | 2011 | Journal of Materials Science & Technology2011，27，5： | 3 |
| 6 | Cell-protecting regeneration from anode carbon deposition using in situ produced oxygen and steam:A combined experimental and theoretical study显示文摘Carbon deposition is a primary concern during the operation of solid oxide fuel cells(SOFCs) fueled with hydrocarbon fuels, leading to cell degradation and even cell damage. Carbon elimination is expected to be a promising approach to prolong cell life. This work reports on a combined experimental and theoretical investigation of cell regeneration from anode carbon deposition of tubular SOFCs fabricated by phase-inversion and co-sintering techniques. The as-prepared cell exhibits a maximum power density of 0.20 W cm^(-2) at 800 ℃ fueling with wet CH_4, but fails to stable operation due to severe carbon deposition.Based on thermodynamic predictions, a successive cell-protecting regeneration process is proposed to eliminate deposited carbon without oxidizing Ni catalysts, during which CH_4 and H_2 fuels are provided in circulation. Through a total of 35 cycling tests, cell performance can always successfully restore to the initial level.The possible carbon elimination mechanism is investigated in detail based on thermodynamic and first-principle calculations. The feasibility of carbon elimination using in situ produced oxygen or steam through electrochemical reaction has been revealed, providing a novel continuous operation mode for hydrocarbon-based SOFCs. | Zongying Han Zhibin Yang Minfang Han | 2018 | Journal of Materials Science & Technology2018，34，12： | 3 |
| 7 | Evaluation of La_(0.7)Ca_(0.3)Cr_(0.95)Zn_(0.05)O_(3-δ)-Gd_(0.1)Ce_(0.9)O_(2-δ) Dual-phase Material and its Potential Application in Oxygen Transport Membrane显示文摘In this work,a dual-phase material consisting of La_(0.7)Ca_(0.3)Cr_(0.95)Zn_(0.05)O_(3-δ)(LCCZ,40 wt%) and Gd_(0.1)Ce_(0.9)O_(2-δ)(GDC,60 wt%) was synthesized.Properties including phase structure,sintering behavior,electrical conductivity and oxygen permeability for LCCZ—GDC were evaluated.The results show that dense LCCZ-GDC dual-phase disks were obtained at the sintering temperature of 1250,1300,1350 and 1400 ℃by tape casting and high temperature sintering method.The grain sizes of both GDC and LCCZ grew up with the increasing of sintering temperature.The average grain size of GDC was about 0.5,0.8,1.4,1.8 μm while the average grain size of LCCZ was about 0.8,1.5,1.8 and 2 μm after sintering at 1 250,1 300,1350 and1400 ℃,respectively.Oxygen flux of LCCZ-GDC decreased with the increase of sintering temperature from1250 to 1400 ℃.The oxygen flux of LCCZ-GDC sintered at 1250 ℃ reached 0.079 mL/min/cm^2 at 975 ℃with a membrane thickness of 800 urn.Dual-phase material of LCCZ-GDC will be a promising oxygen transport membrane material for its low sintering temperature and good microstructure. | Tenglong Zhu Zhibin Yang Minfang Han | 2014 | Journal of Materials Science & Technology2014，30，10： | 2 |
| 8 | Electrochemical performance and stability of Sr-doped LaMnO_(3)-infiltrated yttria stabilized zirconia oxygen electrode for reversible solid oxide fuel cells显示文摘Porous Sr-doped lanthanum manganite–yttria stabilized zirconia(LSM–YSZ)oxygen electrode is prepared by an infiltration process for a reversible solid oxide fuel cell(RSOFC).X-ray diffraction and SEM analysis display that perovskite phase LSM submicro particles are evenly distributed in the porous YSZ matrix.Polarization curves and electrochemical impedance spectra are conducted for the RSOFC at 800 and 850C under both SOFC and SOEC modes.At 850℃,the single cell has the maximum power density of~726 mW/cm^(2)under SOFC mode,and electrolysis voltage of 1.35 V at 1 A/cm^(2)under SOEC mode.Fuel cell/water electrolysis cycle shows the cell has good performance stability during 6 cycles,which exhibits the LSM–YSZ oxygen electrode has high electrochemical performance and good stability.The results suggest that netw ork-like LSM–YSZ electrode made by infiltration process could be a promising oxygen electrode for high temperature RSOFCs. | Hui Fan Minfang Han | 2014 | International Journal of Coal Science & Technology2014，1，1： | 2 |
| 9 | PropertiesofBi2O3GBaOGSiO2GRxOy glasswithMgOGfillercompositesealant显示文摘 | Han Minfang DuJunping | 2011 | JournaloftheChineseCeramicSociety2011，39，7： | 1 |
| 10 | Solid oxide fuel cell:materials,technology and application显示文摘Solid oxide fuel cells (SOFCs) offer a clean, pollution-free technology for the electrochemical conversion of chemical energy of hydrocarbon fuels into electricity. Many programs are being initiated in the United States, Europe, Japan and so on. The funding for SOFC development worldwide has risen dramatically and this trend is expected to continue for at least the next decades. These development programs are also investigating wider applications of SOFCs in stationary, residential, transportation and military sectors. Finally, it is summarized the key materials and fabrication processes of SOFC in this paper. | Han Minfang Liu Ze Zhou Su Peng Suping | 2010 | Engineering Sciences2010，8，1： | 1 |
| 11 | Some Key Materials Used in SOFC Stack显示文摘 | Han Minfang Liu Ze Yang Cuibai | 2005 | Third Sina-German Workshop on Fuel Cells2005，，5： | 1 |
| 12 | High performance solid oxide fuel cells based on tri-layer yttria-stabilized zirconia by low temperature simering process显示文摘 | LIU Ze ZHENG Ziwei HAN Minfang | 2010 | J Power Source2010，195，21： | 1 |
| 13 | The Influence of a-A^03 addition on microstructure mechanical and formaldehyde adsorption properties of fly ash-basedgeopolymer products显示文摘 | Huang Yi Han Minfang | | Journal of Hazardous Materials t20l 10，193，： | 1 |
| 14 | Grain Characteristics of Nanocrystalline ZrO2 Powders显示文摘 | Yin Huiyan Han Minfang | 2007 | Key Engineering Materials2007，，： | 1 |
| 15 | Electrochemical property of multi-layer anode supported solid oxide fuel cell fabricated through sequential tape-casting and co-firing显示文摘In this work, a multi-layer anode supported solid oxide fuel cell(SOFC) is designed and successfully prepared through sequential tape casting and co-firing. The single cell is consisted of NiO-3 YSZ(3 YSZ: 3 mol.% yttria doped zirconia) anode support, NiO-8 YSZ(8 YSZ: 8 mol.% yttria stabilized zirconia) anode functional layer, dense 8 YSZ electrolyte layer, and porous 3 YSZ cathode scaffold layer with infiltrated La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ) cathode. The clear interfaces and good contacts between each layer, without element inter-diffusion being observed, suggest that this sequential tape casting and co-firing is a feasible and successful route for anode supported single cell fabrication. This cell exhibits remarkable high open circuit voltage of 1.097 V at 800?C under room temperature humidified hydrogen, with highly dense and gastight electrolyte layer. It provides a power density of 360 mW/cm^2 under operation voltage of0.75 V at 800?C and a stable operation of ~110 h at 750?C under current density of-300 mA/cm^2. Furthermore, this cell also presents encouraging electrochemical responses under various anode hydrogen partial pressures and maintains high power output at low fuel concentrations. | Xiaoyang Chen Weijie Ni Xiaojia Du Zaihong Sun Tenglong Zhu Qin Zhong Minfang Han | 2019 | Journal of Materials Science & Technology2019，35，4： | 1 |
| 16 | Influence of Al 2 O 3 addition on the properties of Bi 2 O 3 –BaO–SiO 2 –R x O y (R显示文摘 | JingJing Tong MinFang Han Subhash C. Singhal Yudong Gong | 2012 | Journal of Non-Crystalline Solids (-)2012，，6： | 1 |
| 17 | Fabrication, micro-structure and properties of a YSZ electrolyte for SOFCs 显示文摘 | HAN Minfang TANG Xiuling YIN Huiyan | 2007 | J Power Sources2007，165，2： | 1 |
| 18 | The Influence of α-Al2 O3 addition on microstructure mechanical and formaldehyde adsorption properties of fly ash-based geopolymer products显示文摘 | Huang Yi Han Minfang | 2011 | Journal of Hazardous Materials2011，193，： | 1 |
| 19 | Effects of operating conditions on the performance degradation and anode microstructure evolution of anode-supported solid oxide fuel cells显示文摘Performance degradation shortens the life of solid oxide fuel cells in practical applications.Revealing the degradation mechanism is crucial for the continuous improvement of cell durability.In this work,the effects of cell operating conditions on the terminal voltage and anode microstructure of a Ni-yttria-stabilized zirconia anode-supported single cell were investigated.The microstructure of the anode active area near the electrolyte was characterized by laser optical microscopy and focused ion beam-scanning electron microscopy.Ni depletion at the anode/electrolyte interface region was observed after 100 h discharge tests.In addition,the long-term stability of the single cell was evaluated at 700℃for 3000 h.After an initial decline,the anode-supported single cell exhibits good durability with a voltage decay rate of 0.72%/kh and an electrode polarization resistance decay rate of 0.17%/kh.The main performance loss of the cell originates from the initial degradation. | Xin Yang Zhihong Du Qian Zhang Zewei Lyu Shixue Liu Zhijing Liu Minfang Han Hailei Zhao | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，6： | 1 |
| 20 | Prediction of fuel cell performance degradation using a combined approach of machine learning and impedance spectroscopy显示文摘Accurate prediction of performance degradation in complex systems such as solid oxide fuel cells is crucial for expediting technological advancements.However,significant challenges still persist due to limited comprehension of degradation mechanisms and difficulties in acquiring in-situ features.In this study,we propose an effective approach that integrates long short-term memory(LSTM) neural network and dynamic electrochemical impedance spectroscopy(DEIS).This integrated approach enables precise prediction of future evolutions in both current-voltage and EIS features using historical testing data,without prior knowledge of degradation mechanisms.For short-term predictions spanning hundreds of hours,our approach achieves a prediction accuracy exceeding 0.99,showcasing promising prospects for diagnostic applications.Additionally,for long-term predictions spanning thousands of hours,we quantitatively determine the significance of each degradation mechanism,which is crucial for enhancing cell durability.Moreover,our proposed approach demonstrates satisfactory predictive ability in both time and frequency domains,offering the potential to reduce EIS testing time by more than half. | Zewei Lyu Yige Wang Anna Sciazko Hangyue Li Yosuke Komatsu Zaihong Sun Kaihua Sun Naoki Shikazono Minfang Han | 2023 | Journal of Energy Chemistry2023，，12： | 0 |
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