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Recent advances for the production of hydrocarbon biofuel via deoxygenation progress

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Science Bulletin 2015年第24期60卷 2096-2106页

作者： Dan Li Hui Xin Xiangzhe Du Xiaolei Hao qingxue liu Changwei Hu Key Laboratory of Green Chemistry and Technology Ministry of Education College of Chemistry Sichuan University College of Chemical Engineering Sichuan University

The current world energy crisis and increasing environmental concerns over global climate change from combusting fossil fuel are driving researchers into a new route to produce fuels via sustainable resource to meet the demands of human. In recent years, deoxygenation as an alternative method has been applied in the production of hydrocarbon fuels, particularly via the deoxygenation of fatty acids and triglycerides from seed oils and fats, producing hydrocarbon fuels entirely fungible with fossil fuels. The deoxygenation of biobased feedstock to fuel-like hydrocarbons is critically reviewed in this article. The review mainly discusses the use of feedstock, innovation of catalysts, and the reaction mechanism involved in the production of hydrocarbon fuels via deoxygenation progress.

关键词： Deoxygenation Biobased feedstock -Hydrocarbon fuels Deoxygenation mechanism

Infiltration of Ce0.8Gd0.2O1.9 nanoparticles on Sr2Fe1.5Mo0.5O6-δ cathode for CO2 electroreduction in solid oxide electrolysis cell

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Journal of Energy Chemistry 2019年第8期28卷 71-78,I0004页

作者： Houfu Lv Yingjie Zhou Xiaomin Zhang Yuefeng Song qingxue liu Guoxiong Wang Xinhe Bao State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023 Liaoning China University of Chinese Academy of Sciences Beijing 100039 China

Solid oxide electrolysis cell(SOEC) can electrochemically convert CO2 to CO at the gas-solid interface with a high current density and Faradaic efficiency, which has attracted increasing attentions in recent *** efficient catalyst for electrochemical CO2 reduction reaction(CO2 RR) at the cathode is a grand challenge for the research and development of SOEC. Sr2Fe1.5Mo0.5O6-δ(SFM) is one kind of promising cathode materials for SOEC, but suffers from insufficient activity for CO2 RR. Herein, Gd0.2Ce0.8O1.9(GDC)nanoparticles were infiltrated onto the SFM surface to construct a composite GDC-SFM cathode and improve the CO2 RR performance in SOEC. The current density over the GDC infiltrated SFM cathode with a GDC loading of 12.8 wt% reaches 0.446 A cm-2 at 1.6 V and 800 °C, which is much higher than that over the SFM cathode(0.283 A cm-2). Temperature-programmed desorption of CO2 measurements suggest that the infiltration of GDC nanoparticles significantly increases the density of surface active sites and three phase boundaries(TPBs), which are beneficial for CO2 adsorption and subsequent conversion. Electrochemical impedance spectroscopy results indicate that the polarization resistance of 12.8 wt% GDCSFM cathode was obviously decreased from 0.46 to 0.30 cm^2 after the infiltration of GDC nanoparticles.

关键词： Electrochemical carbon dioxide reduction reaction Solid oxide electrolysis cell Double perovskite Infiltration

In situ electrochemical reconstruction of Sr2Fe1.45Ir0.05Mo0.5O6-δ perovskite cathode for CO2 electrolysis in solid oxide electrolysis cells

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National Science Review 2023年第9期10卷 37-45页

作者： Yuxiang Shen Tianfu liu Rongtan Li Houfu Lv Na Ta Xiaomin Zhang Yuefeng Song qingxue liu Weicheng Feng Guoxiong Wang Xinhe Bao State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences University of Chinese Academy of Sciences

Solid oxide electrolysis cells provide a practical solution for the direct conversion of CO2to other chemicals(***),however,an in-depth mechanistic understanding of the dynamic reconstruction of active sites for perovskite cathodes during CO2 electrolysis remains a great ***,we identify that iridium-doped Sr2Fe1.45Ir0.05Mo0.5O6-δ(SFIrM) perovskite displays a dynamic electrochemical reconstruction feature during CO 2 electrolysis with abundant exsolution of highly dispersed IrFe alloy nanoparticles on the SFIrM *** in situ reconstructed IrFe@SFIrM interfaces deliver a current density of 1.46 A cm-2while maintaining over 99% CO Faradaic efficiency,representing a 25.8%improvement compared with the Sr2Fe1.5Mo0.5O6-δ*** situ electrochemical spectroscopy measurements and density functional theory calculations suggest that the improved CO2electrolysis activity originates from the facilitated formation of carbonate intermediates at the IrFe@SFIrM *** work may open the possibility of using an in situ electrochemical poling method for CO2electrolysis in practice.

关键词： solid oxide electrolysis cell CO2 electrolysis, in situ electrochemical reconstruction metal/perovskite interface carbonate intermediates

In-situ exsolution of cobalt nanoparticles from La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.2)O_(3-δ) cathode for enhanced CO_(2) electrolysis performance

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Green Chemical Engineering 2022年第3期3卷 250-258页

作者： Jingwei Li qingxue liu Yuefeng Song Houfu Lv Weicheng Feng Yuxiang Shen Chengzhi Guan Xiaomin Zhang Guoxiong Wang State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China University of Chinese Academy of Sciences Beijing100039China Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China

Solid oxide electrolysis cell(SOEC)is a promising technology for CO_(2) conversion and renewable energy storage with high *** is highly desirable to develop catalytically active cathodes for CO_(2) ***,cathode materials with different structural stabilities are designed by Nb substitution on La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.2)O_(3-δ)(LSFC82)to obtain La_(0.5)Sr_(0.5)Fe_(0.7)Co_(0.2)Nb_(0.1)O_(3-δ)(LSFCN721)and La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.1)Nb_(0.1)O_(3-δ)(LSFCN811),***82-Sm_(0.2)Ce_(0.8)O_(2-δ)(SDC)cathode with inferior structural stability(ability to maintain the structure)shows desirable CO_(2) electrolysis performance with the generated current density of 1.80 A cm^(-2)2 at 1.6 V and stable performance during 110 h operation at 1.2 V and 800℃.However,LSFC82 particles are collapsed into pieces after stability test with the generation of Co nanoparticles *** frameworks of LSFCN721 and LSFCN811 particles maintain well because of the high-valent niobium,but Co exsolution,ox-ygen vacancy content and the corresponding CO_(2) electrolysis performance are *** work confirms that Co nanoparticles can be exsolved from LSFC82-SDC cathode during CO_(2) electrolysis,providing references for constructing metallic nanoparticles decorated-perovskite cathodes for SOECs.

关键词： Solid oxide electrolysis cell CO_(2)electrolysis Perovskite Cobalt nanoparticles Exsolution

Improving the performance of solid oxide electrolysis cell with gold nanoparticles-modified LSM-YSZ anode

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Journal of Energy Chemistry 2019年第8期28卷 181-187,I0007页

作者： Yuefeng Song Xiaomin Zhang Yingjie Zhou Houfu Lv qingxue liu Weicheng Feng Guoxiong Wang Xinhe Bao State Key Laboratory of Catalysis CAS Center for Excellence in Nanoscience Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023 Liaoning China Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023 Liaoning China University of Chinese Academy of Sciences Beijing 100039 China

Gold, as the common current collector in solid oxide electrolysis cell(SOEC), is traditionally considered to be inert for oxygen evolution reaction at the anode of SOEC. Herein, gold nanoparticles were loaded onto conventional strontium doped lanthanum manganite-yttria stabilized zirconia(LSM-YSZ) anode, which evidently improved the performance of oxygen evolution reaction at 800 °C. The current densities at 1.2 V and 1.4 V increased by 60.0% and 46.9%, respectively, after loading gold nanoparticles onto the LSM-YSZ anode. Physicochemical characterizations and electrochemical measurements suggested that the improved SOEC performance was attributed to the accelerated electron transfer of elementary process in anodic polarization reaction and the newly generated triple phase boundaries in gold nanoparticles-loaded LSMYSZ anode.

关键词： Solid oxide electrolysis cell Oxygen evolution reaction Gold nanoparticles CO2 electrolysis Strontium doped lanthanum manganite-yttria stabilized zirconia

Highly dispersed nickel species on iron‐based perovskite for CO_(2) electrolysis in solid oxide electrolysis cell

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Chinese Journal of Catalysis 2022年第7期43卷 1710-1718页

作者： Yingjie Zhou Tianfu liu Yuefeng Song Houfu Lv qingxue liu Na Ta Xiaomin Zhang Guoxiong Wang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China State Key Laboratory of Catalysis CAS Center for Excellence in NanoscienceDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China

Feasible construction of cathode materials with highly dispersed active sites can extend the tri‐ple‐phase boundaries,and therefore leading to enhanced electrode kinetics for CO_(2) electrolysis in solid oxide electrolysis cell(SOEC).Herein,highly dispersed nickel species with low loading(1.0 wt%)were trapped within the La_(0.8)Sr_(0.2)FeO_(3)–δ‐Ce_(0.8)Sm_(0.2)O_(2)–δvia a facial mechanical milling ap‐proach,which demonstrated excellent CO_(2) electrolysis *** highly dispersed nickel species can significantly alter the electronic structures of the LSF‐SDC without affecting its porous network and facilitate oxygen vacancy formation,thus greatly promote the CO_(2) electrolysis perfor‐*** highest current density of 1.53 A·cm^(-2) could be achieved when operated under 800℃ at 1.6 V,which is about 91%higher than the LSF‐SDC counterpart.

关键词： CO_(2)electrolysis Solid oxide electrolysis cells Perovskite oxide Nickel species

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控制感应加热电源功率稳定的模糊控制方法

制造技术与机床 2007年第10期 56-59页

作者：刘庆雪刘宁公茂法山东科技大学信息与电气工程学院山东青岛266510

感应加热电源中由于温度的影响,负载等效参数会发生变化,造成感应加热电源主回路谐振频率变化,引起电源的输出功率不稳定。针对这种情况,提出了一种双闭环控制结构和模糊控制方法,使得负载变化时保持感应加热电源的输出功率稳定。实际... 详细信息

感应加热电源中由于温度的影响,负载等效参数会发生变化,造成感应加热电源主回路谐振频率变化,引起电源的输出功率不稳定。针对这种情况,提出了一种双闭环控制结构和模糊控制方法,使得负载变化时保持感应加热电源的输出功率稳定。实际运行结果证明了设计的有效性和可靠性。

关键词：感应加热电源模糊控制输出功率

不同退火温度下Zr-Ti合金组织及力学性能的研究

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铸造技术 2014年第11期35卷 2588-2590页

作者：刘清雪李永强吉林建筑大学吉林长春130000 一汽轿车股份有限公司吉林长春130000

以Zr47Ti45A15V3合金为研究对象，采用DSC、电子万能试验机、XRD和TEM，研究热处理对Zr-Ti合金微观组织以及力学性能的影响规律。结果表明，合金的初始组织为α＋β结构，具有高强度低塑性；在560-750℃时合金发生α→β相转变，出现明... 详细信息

以Zr47Ti45A15V3合金为研究对象，采用DSC、电子万能试验机、XRD和TEM，研究热处理对Zr-Ti合金微观组织以及力学性能的影响规律。结果表明，合金的初始组织为α＋β结构，具有高强度低塑性；在560-750℃时合金发生α→β相转变，出现明显吸热峰，在此温度范围内进行回火处理会导致合金抗拉强度下降；800℃回火时，合金中的α相几乎全部转变为β相，塑性达到最大，但抗拉强度降至950MPa；Zr-Ti合金的最佳回火温度为590℃，此时合金的抗拉强度为1398MPa．伸长率为3．1％。

关键词：力学性能相变塑性变形

基于改进人工蜂群算法的云制造服务组合优化方法

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通信学报 2023年第1期44卷 200-210页

作者：胡强田雨晴綦浩泉吴鹏刘庆雪青岛科技大学信息科学技术学院山东青岛266061 昆明学院机电工程学院云南昆明650214

为提高云制造服务组合的流程寻优质量、效率和稳定性,提出一种基于改进人工蜂群算法的云制造服务组合优化方法。首先,建立了云制造服务组合场景下的3种服务协同质量计算方法;然后,构建了一种融合服务协同质量的云制造服务组合优化模型;... 详细信息

为提高云制造服务组合的流程寻优质量、效率和稳定性,提出一种基于改进人工蜂群算法的云制造服务组合优化方法。首先,建立了云制造服务组合场景下的3种服务协同质量计算方法;然后,构建了一种融合服务协同质量的云制造服务组合优化模型;最后,设计了一种具有多搜索策略岛屿模型的人工蜂群算法,实现最优云制造服务组合流程的求解。实验结果表明,所提算法在组合流程的寻优质量、效率和稳定性方面均优于当前流行的人工蜂群改进算法和其他群智能算法。

关键词：云制造服务组合流程优化人工蜂群

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