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国产深度净化脱硫剂在大型化甲醇合成装置上的工业应用

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低碳化学与化工 2024年第4期49卷 107-112页

作者：雷聪梁立倪昂惠武卫苏敏张俊张新波国能榆林化工有限公司陕西榆林719300 西南化工研究设计院有限公司工业排放气综合利用国家重点实验室国家碳一化学工程技术研究中心四川成都610225

国能榆林化工有限公司煤制甲醇装置以煤为原料,采用水煤浆气化技术生产粗煤气,粗煤气经过耐硫变换调整氢碳比、低温甲醇洗脱除杂质和酸性气体、精脱硫单元深度脱硫,最后进入甲醇合成系统生产粗甲醇产品。为了避免甲醇合成催化剂失活,保... 详细信息

国能榆林化工有限公司煤制甲醇装置以煤为原料,采用水煤浆气化技术生产粗煤气,粗煤气经过耐硫变换调整氢碳比、低温甲醇洗脱除杂质和酸性气体、精脱硫单元深度脱硫,最后进入甲醇合成系统生产粗甲醇产品。为了避免甲醇合成催化剂失活,保证生产正常运行,精脱硫单元采用国产深度净化脱硫剂CNTS-11在苛刻工况下进行脱硫。本文介绍了应用CNTS-11脱硫剂的具体情况,包括装填、工业运行数据、使用后的强度和硫容等。脱硫后,合成气中未检测出含硫物质,脱硫剂硫容达13.00%,比国内同类产品高出40%,且过程无副产物产生。

关键词：甲醇脱硫剂深度净化低温脱硫

Experimental research on the seismic behavior of CSPSWs connected to frame beams

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Earthquake Engineering and Engineering Vibration 2011年第1期10卷 65-73页

作者： Guo Lanhui Ma xinbo Li Ran zhang Sumei School of Civil Engineering Harbin Institute of Technology Harbin 150090 China

The seismic performance of composite steel plate shear walls （CSPSWs） that consist of a steel plate shear wall （SPSW） with reinforced concrete （RC） panels attached to one or both sides by means of bolts or connectors is experimentally studied. The shear wall is connected to the frame beams but not to the columns. This arrangement restrains the possible out-of-plane buckling of the thin-walled steel plate, thus significantly increasing the bearing capacity and ductility of the overall wall, and prevents the premature overall or local buckling failure of the frame columns. From a practical viewpoint, these solutions can provide open space in a floor as this type of composite shear walls with a relatively small aspect ratio can be placed parallel along a bay. In this study, four CSPSWs and one SPSW were tested and the results showed that both CSPSWs and SPSW possessed good ductility. For SPSW alone, the buckling appeared and resulted in a decrease of bearing capacity and energy dissipation capacity. In addition, welding stiffeners at corners were shown to be an effective way to increase the energy dissipation capacity of CSPSWs.

关键词： steel plate shear wall (SPSW) composite steel plate shear wall (CSPSW) seismic behavior ductility

Highly efficient and selective CO2 electro-reduction with atomic Fe-C-N hybrid coordination on porous carbon nematosphere

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Nano Research 2019年第9期12卷 2318-2323页

作者： Haixia Zhong Fanlu Meng Qi zhang Kaihua Liu xinbo zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute cf Applied ChemistryChinese Academy of SciencesChangchun 130022China Key Laboratory of Automobile Materials Ministry of Education and College of Materials Science and EngineeringJilin UniversityChangchun 130012China

Carbon dioxide reduction(CO2RR)has become a promising way to address the energy and environmental crisis,of which the fundamental development of the optimal electrocatalysts is the crucial ***,we develop Fe and N doping porous carb on n ematosphere(FeNPCN)as an excellent CO2RR electrocatalyst in aqueous *** with the high conductivity,pore structure and abundant Fe and N doping,FeNPCN exhibits high catalytic activity with a high faradaic selectivity of CO(94%)and long-term ***,the ratio of CO and H2 can be changed by the applied potential for the different syngas related *** functional theory(DFT)calculation results also reveal that the excellent catalytic activity is likely attributed to C and N hybrid coordination with atomic Fe.

关键词： carbon dioxide reducti on electrocatalysis porous carbon carb on mon oxide metal/nitrogen dopi ng

Iron-chelated hydrogel-derived bifunctional oxygen electrocatalyst for high-performance rechargeable Zn-air batteries

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Nano Research 2017年第12期10卷 4436-4447页

作者： Fanlu Meng Haixia Zhong Junmin Yan xinbo zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Key Laboratory of Automobile Materials Ministry of Education and College of Materials Science and Engineering Jilin University Changchun 130012 China University of Chinese Academy of Sciences Beijing 100049 China

Efficient oxygen electrocatalysts are the key elements of numerous energy storage and conversion devices, including fuel cells and metal-air batteries. In order to realize their practical applications, highly efficient and inexpensive non-noble metal-based oxygen electrocatalysts are urgently required. Herein, we report a novel iron-chelated urea-formaldehyde resin hydrogel for the synthesis of Fe-N-C electrocatalysts. This novel hydrogel is prepared using a new instantaneous （20 s） one-step scalable strategy, which theoretically ensures the atomic-level dispersion of Fe ions in the urea-formaldehyde resin, guaranteeing the microstructural homogeneity of the electrocatalyst. Consequentl~ the prepared electrocatalyst exhibits higher catalytic activity and durability in the oxygen reduction （ORR） and evolution （OER） reactions than the commercial Pt/C catalyst. Furthermore, the above catalyst also shows a much better performance in rechargeable Zn-air batteries, including higher power density and better cycling stability. The developed synthetic approach opens up new avenues toward the development of sustainable active electrocatalysts for electrochemical energy devices.

关键词： hydrogel iron-nitrogen-doped carbon bifunctional oxygen reduction reaction(ORR) oxygen evolution reaction(OER) Zn-air batteries

Multinational Companies'Hedging Effectiveness of Foreign Exchange Risk:A Quantitative Comparison Study

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Fudan Journal of the Humanities and Social Sciences 2021年第2期14卷 285-302页

作者： xinbo zhang Xiamen University Malaysia SepangMalaysia Nanjing China

To investigate hedging effectiveness of multinational companies in respect of using currency derivatives,the author adapts an innovative and multi layers GJR-GARCH-based *** model broke down the currency risk faced by MNCs in each business area and added six control variables other than foreign sales ratio,all these variables have been proved to be related to MNCs'currency risk exposure but was not included into previous ***,this model absorbs advantages of several models built in previous studies and combines them into a whole,intact *** paper also employed a wide research scope,using a sample of 48 non-financial and 28 financial firms headquartered in ***,comparison between financial and non-financial firms is an innovation of our *** to the result,hedging of non-financial companies in respect of currency risk is ineffective,and financial companies are more likely using currency derivatives to speculate.

关键词： Hedging effectiveness Currency risk GJR-GARCH Multinational companies Comparison study Econometrics model

Ligand centered electrocatalytic efficient CO_(2) reduction reaction at low overpotential on single-atom Ni regulated molecular catalyst

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Nano Research 2022年第7期15卷 5816-5823页

作者： Jiazhi Wang Qi Hao Haixia Zhong Kai Li xinbo zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China University of Science and Technology of China Hefei 230026China Key Laboratory of Automobile Materials Ministry of EducationJilin UniversityChangchun 130022China Center for Advancing Electronics Dresden(cfaed)and Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden 01062Germany

Electrochemical CO_(2) reduction reaction(CO_(2)RR)into value-added chemicals/fuels is crucial for realizing the sustainable carbon cycle while mitigating the energy ***,it is impeded by the relatively high overpotential and low energy efficiency due to the lack of efficient ***,we develop an isolated single-atom Ni catalyst regulated strategy to activate and stabilize the iron phthalocyanine molecule(Ni SA@FePc)toward a highly efficient CO_(2)RR process at low *** well-defined and homogenous catalytic centers with unique structures confer Ni SA@FePc with a significantly enhanced CO_(2)RR performance compared to single-atom Ni catalyst and FePc molecule and afford the atomic understanding on active sites and catalytic *** expected,Ni SA@FePc exhibits a high selectivity of more significant Faraday efficiency(≥95%)over a wide potential range,a high current density of~252 mA·cm^(−2) at low overpotential(390 mV),and excellent long-term stability for CO_(2)RR to CO.X-ray absorption spectroscopy measurement and theoretical calculation indicate the formation of NiN_(4)-O_(2)-FePc heterogeneous structure for Ni SA@*** CO_(2)RR prefers to occur at the raised N centers of NiN4-O_(2)-FePc heterogeneous structure for Ni SA@FePc,which enables facilitated adsorption of*COOH and desorption of CO,and thus accelerated overall reaction kinetics.

关键词： single-atom Ni iron phthalocyanine molecular catalyst carbon dioxide reduction reaction ultra-low overpotential

Challenges and perspectives for manganese-based oxides for advanced aqueous zinc-ion batteries

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InfoMat 2020年第2期2卷 237-260页

作者： Yinlei Zhao Yunhai Zhu xinbo zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunChina University of Science and Technology of China(USTC) HefeiChina Key Laboratory of Automobile Materials(Jilin University) Ministry of EducationDepartment of Materials Science and EngineeringJilin UniversityChangchunChina

Li-ion batteries(LIBs)with excellent cycling stability and high-energy densities have already occupied the commercial rechargeable battery ***,the high cost and intrinsic insecurity induced by organic electrolyte severely hinder their applications in large-scale energy *** contrast,aqueous Zn-ion batteries(ZIBs)are being developed as an ideal candidate because of their cheapness and high *** from high operating voltage and acceptable specific capacity,recently,manganese-based oxides with different various crystal structures have been extensively studied as cathode materials for aqueous *** review presents research progress of manganese-based cathodes in aqueous ZIBs,including various manganese-based oxides and their zinc storage *** addition,we also discuss some optimization strategies that aim at improving the electrochemical performance of manganese-based cathodes,and the design of flexible aqueous ZIBs based on manganese-based cathodes(MZIBs).Finally,this review summarizes some valuable research directions,which will promote the further development of aqueous MZIBs.

关键词： flexible ZIBs manganese dioxide manganese-based oxides strategies ZIBs

Three-dimensional interconnected Ni（Fe）OxHy nanosheets on stainless steel mesh as a robust integrated oxygen evolution electrode

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Nano Research 2018年第3期11卷 1294-1300页

作者： Qi zhang Haixia Zhong Fanlu Meng Di Bao xinbo zhang Xiaolin wei Hunan Key Laboratory for Micro-Nano Energy Materials and Device Department of Physics Xiangtan University Xiangtan 411105 China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China

The development of an electrocatalyst based on abundant elements for the oxygen evolution reaction （OER） is important for water splitting associated with renewable energy sources. In this study, we develop an interconnected Ni（Fe）OxHy nanosheet array on a stainless steel mesh （SSNNi） as an integrated OER electrode, without using any polymer binder. Benefiting from the well- defined three-dimensional （3D） architecture with highly exposed surface area, intimate contact between the active species and conductive substrate improved electron and mass transport capacity, facilitated electrolyte penetration, and improved mechanical stability. The SSNNi electrode also has excellent OER performance, including low overpotential, a small Tafel slope, and long-term durability in the alkaline electrolyte, making it one of the most promising OER electrodes developed.

关键词： oxygen evolution reaction three-dimensional (3D)architecture stainless steel mesh (SSNNi) integrated oxygenevolution electrode

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癫痫性猝死的病理学研究进展

中华神经科杂志 2024年第5期57卷 504-510页

作者：姬金花王晓丽王卫婵张歆博袁娜刘锋昌刘永红西安市北方医院神经内科西安710032 空军军医大学西京医院神经内科西安710032

癫痫性猝死(SUDEP)是指癫痫患者突发、意料之外且原因不明的死亡,是癫痫患者死亡风险显著增高的重要原因。由SUDEP所致的癫痫突发死亡已成为重大的公共卫生问题。随着尸检病例的积累和病理学研究的发展,SUDEP的病理学亦有一些新的发现... 详细信息

癫痫性猝死(SUDEP)是指癫痫患者突发、意料之外且原因不明的死亡,是癫痫患者死亡风险显著增高的重要原因。由SUDEP所致的癫痫突发死亡已成为重大的公共卫生问题。随着尸检病例的积累和病理学研究的发展,SUDEP的病理学亦有一些新的发现。通过检索相关文献,现就SUDEP的病理学研究进展做一综述。

关键词：癫痫性猝死神经病理学心肺病理学