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学者姓名:陈孔发
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固体氧化物电池(SOCs)是一种高效的能量存储和转换装置.然而,在SOCs运行条件下,Fe-Cr合金连接体表面挥发的铬蒸气容易沉积在空气极,导致SOCs电化学性能和长期稳定性的严重衰减.本微型综述首先介绍了燃料电池和电解模式下空气极的铬沉积和中毒现象及其相关机制,继而重点介绍学界在抑制铬中毒策略上的研究进展.本微型综述将为高活性、耐铬毒化SOCs空气极的理性设计和开发提供参考.
Keyword :
固体氧化物电池 固体氧化物电池 空气极 空气极 表面改性 表面改性 铬中毒 铬中毒
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GB/T 7714 | 黄炯元 , 陈志逸 , 罗玉洁 et al. 抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述 [J]. | 燃料化学学报(中英文) , 2025 , 53 (2) : 249-261 . |
MLA | 黄炯元 et al. "抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述" . | 燃料化学学报(中英文) 53 . 2 (2025) : 249-261 . |
APA | 黄炯元 , 陈志逸 , 罗玉洁 , 艾娜 , 蒋三平 , 陈孔发 . 抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述 . | 燃料化学学报(中英文) , 2025 , 53 (2) , 249-261 . |
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Electron transport characteristics through a triple-quantum-dot ring have been investigated theoretically. Using the nonequilibrium Green's function method, the conductance and current are numerically analyzed. An anti-resonance point always appears in the conductance spectrum and its position can be controlled by tuning the interdot coupling strength. The current is nonzero as a forward bias is applied to the system, while the current becomes zero as a small reverse bias is applied. This characteristic enables the system to be used as a diode. The current becomes spin-dependent as a Zeeman magnetic field is considered. A 100% polarization and -100% polarization can be realized by controlling the Zeeman magnetic field intensity, suggesting the physical scheme as a spin filter. Moreover, the capability of transition between 100% polarization and unpolarization indicates that the system can be designed as a polarization pulse device. The present work provides theoretical insights into the realization of quantum spin-dependent devices and quantum computation applications.
Keyword :
Current-voltage characteristics Current-voltage characteristics Nonequilibrium Green's function Nonequilibrium Green's function Quantum dot Quantum dot Spin polarization Spin polarization
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GB/T 7714 | He, Z. L. , Wei, H. Y. , Li, Q. et al. Application of a triple-quantum-dot ring: diode, spin filter, and polarized pulse device [J]. | INDIAN JOURNAL OF PHYSICS , 2025 . |
MLA | He, Z. L. et al. "Application of a triple-quantum-dot ring: diode, spin filter, and polarized pulse device" . | INDIAN JOURNAL OF PHYSICS (2025) . |
APA | He, Z. L. , Wei, H. Y. , Li, Q. , Chen, K. F. . Application of a triple-quantum-dot ring: diode, spin filter, and polarized pulse device . | INDIAN JOURNAL OF PHYSICS , 2025 . |
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Development of electrocatalytically active, durable hydrogen electrode materials is vital for solid oxide cells (SOCs). La0.75Sr0.25Cr0.5Mn0.5O3 (LSCM) hydrogen electrode shows great potential for durability in a harsh operational environment, although its practical application is critically limited by the low intrinsic electrocatalytic activity. Herein, a heterogeneous LSCM-Gd0.1Ce0.9O1.95 (GDC) nanocomposite hydrogen electrode is synthesized by coupling a self-assembly synthesis method with a sintering-free direct assembly technique. The self-assembly method gives rise to the formation of a nanocomposite with a robust LSCM-GDC heterointerface and increased surface oxygen vacancies. The direct assembly method enables preservation of the original nanostructure and heterointerface in the hydrogen electrode, and the subsequent electrochemical polarization induces in situ construction of a coherent electrode|electrolyte interface. A corresponding electrolyte-supported single cell achieves a peak power density of 1.04 W cm-2 and an electrolysis current density of 1.51 A cm-2@1.5 V in pure CO2 at 850 degrees C. The cell shows no noticeable degradation during 200 h galvanostatic test in fuel-cell and electrolysis modes. This work provides an innovative approach for the development of LSCM-GDC nanocomposite electrodes for efficient and durable SOCs.
Keyword :
direct assembly direct assembly heterointerface heterointerface nanocomposite nanocomposite oxide hydrogen electrode oxide hydrogen electrode self-assembly self-assembly
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GB/T 7714 | Qian, Jiaqi , Huang, Jiongyuan , Chen, Zhiyi et al. Heterogeneous La0.75Sr0.25Cr0.5Mn0.5O3-Based Nanocomposite Hydrogen Electrode for Efficient and Durable Solid Oxide Cells [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 . |
MLA | Qian, Jiaqi et al. "Heterogeneous La0.75Sr0.25Cr0.5Mn0.5O3-Based Nanocomposite Hydrogen Electrode for Efficient and Durable Solid Oxide Cells" . | ADVANCED FUNCTIONAL MATERIALS (2025) . |
APA | Qian, Jiaqi , Huang, Jiongyuan , Chen, Zhiyi , Cheng, Zixiang , Zhang, Haipeng , Lin, Changgen et al. Heterogeneous La0.75Sr0.25Cr0.5Mn0.5O3-Based Nanocomposite Hydrogen Electrode for Efficient and Durable Solid Oxide Cells . | ADVANCED FUNCTIONAL MATERIALS , 2025 . |
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Thermally induced crystallization in sealing glass is one of the main factors in affecting their application in intermediate-temperature solid oxide fuel cells (IT-SOFCs). Herein, the influence of crystallization on the physical properties and sealing ability of BaO-MgO-Al2O3-B2O3-SiO2 (BMABS) glass are investigated. The results show that crystal phases, BaAl2Si2O8, BaMg2Si2O7, and Ba5Si8O21 are readily precipitated from the glass at a preannealing temperature of 750 degrees C, and the crystallinity reaches 44 % and 58 % after pre-annealing for 20 h and 100 h, respectively. Nevertheless, the physical properties of the pre-annealed BMABS glass fall into the requirements for IT-SOFCs. After pre-annealing at 750 degrees C for 100 h, the coefficient of thermal expansion of BMABS is 10.7 x 10-6 K-1, the electrical conductivity is 3.2 x 10- 7 S cm- 1 at 750 degrees C, and the self-healing ability is maintained. Moreover, the utilization of a stainless steel | BMABS glass | single cell sandwiched assembly assessment demonstrates excellent gas-tightness and intact sealing interfaces between the BMABS glass and adjacent components.
Keyword :
Crystallization Crystallization Sealing glass Sealing glass Solid oxide fuel cells Solid oxide fuel cells Thermal stability Thermal stability
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GB/T 7714 | Zheng, Jiayong , Lu, Zhenghao , Chen, Zhiyi et al. Evaluation of crystallization on the physical properties and sealing ability of BaO-MgO-Al2O3-B2O3-SiO2 glass for intermediate-temperature solid oxide fuel cells [J]. | CERAMICS INTERNATIONAL , 2025 , 51 (11) : 14723-14729 . |
MLA | Zheng, Jiayong et al. "Evaluation of crystallization on the physical properties and sealing ability of BaO-MgO-Al2O3-B2O3-SiO2 glass for intermediate-temperature solid oxide fuel cells" . | CERAMICS INTERNATIONAL 51 . 11 (2025) : 14723-14729 . |
APA | Zheng, Jiayong , Lu, Zhenghao , Chen, Zhiyi , Ai, Na , Guan, Chengzhi , Wang, Xin et al. Evaluation of crystallization on the physical properties and sealing ability of BaO-MgO-Al2O3-B2O3-SiO2 glass for intermediate-temperature solid oxide fuel cells . | CERAMICS INTERNATIONAL , 2025 , 51 (11) , 14723-14729 . |
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Solid oxide cells (SOCs) are emerging devices for efficient energy storage and conversion. However, during SOC operation, gaseous chromium (Cr) species released from Fe-Cr alloy interconnect can lead to Cr deposition and poisoning of air electrodes, causing substantial degradation in electrochemical performance and compromising the longterm stability of SOCs. This mini-review examines the mechanism of Cr deposition and poisoning in air electrodes under both fuel-cell and electrolysis modes. Furthermore, emphasis is placed on the recent advancements in strategies to mitigate Cr poisoning, offering insights into the rational design and development of active and Cr-tolerant air electrodes for SOCs. © 2025 Science Press. All rights reserved.
Keyword :
Chromium metallography Chromium metallography Chromium metallurgy Chromium metallurgy Electrochemical electrodes Electrochemical electrodes Electrolysis Electrolysis Hard facing Hard facing Iron alloys Iron alloys Lead alloys Lead alloys
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GB/T 7714 | Huang, Jiongyuan , Chen, Zhiyi , Luo, Yujie et al. Advancements in chromium-tolerant air electrode for solid oxide cells: A mini-review [J]. | Journal of Fuel Chemistry and Technology , 2025 , 53 (2) : 249-261 . |
MLA | Huang, Jiongyuan et al. "Advancements in chromium-tolerant air electrode for solid oxide cells: A mini-review" . | Journal of Fuel Chemistry and Technology 53 . 2 (2025) : 249-261 . |
APA | Huang, Jiongyuan , Chen, Zhiyi , Luo, Yujie , Ai, Na , Jiang, Sanping , Chen, Kongfa . Advancements in chromium-tolerant air electrode for solid oxide cells: A mini-review . | Journal of Fuel Chemistry and Technology , 2025 , 53 (2) , 249-261 . |
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Layered double hydroxides (LDHs) have long been a hot research topic in supercapacitors because of their abundant reaction sites. However, LDH nanosheets tend to easily stack together during the synthesis process. Therefore, in this paper, a simple and effective stirring aging method was used to grow ZIF-67 uniformly on the surface of Ni-Mn LDH. The strategy can fully utilize the high specific surface area of ZIF-67 to provide a large number of active sites for Ni-Mn LDHs, which results in a significant increase of the capacitance contribution. The core-shell structure NM LDHs@Z has significant redox peaks and the surface redox reaction. The capacitance contribution of NM LDHs@Z increase from 21.7 % to 91.4 %. But it does not belong battery-type supercapacitors from the CV curves. It is necessary to find out a better characterization parameter to estimate the type of battery or capacitor, instead of the CV and GCD curve shapes. The Ni-Mn LDHs@ZIF-67 composites can achieve a specific capacitance of 1340 F g- 1at a current density of 1 A g-1. As the specific current density is increased to 10 A g- 1, the capacity retention can reach about 75 %, which is superior to that of the Ni-Mn LDHs (60 %). The hybrid supercapacitor is composed of Ni-Mn LDHs@ZIF-67 composite as the cathode and activated carbon (AC) as the anode with a 128 F g- 1 specific capacitance at a 1 A g- 1 current density and a 45.8 Wh kg- 1 energy density at a 850 W kg- 1 power density. The Ni-Mn LDH@ZIF-67 composites has a potential application in hybrid supercapacitors.
Keyword :
Aggregated LDHs Aggregated LDHs Ni-Mn LDHs Ni-Mn LDHs Supercapacitors Supercapacitors ZIF-67 ZIF-67
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GB/T 7714 | Chen, Fuqiang , Li, Jiamei , Shao, Yanqun et al. ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 507 . |
MLA | Chen, Fuqiang et al. "ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors" . | CHEMICAL ENGINEERING JOURNAL 507 (2025) . |
APA | Chen, Fuqiang , Li, Jiamei , Shao, Yanqun , Zhu, Zhijin , Shen, Tongwei , Chen, Kongfa et al. ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors . | CHEMICAL ENGINEERING JOURNAL , 2025 , 507 . |
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The adoption of oxide precursor substrate can simplify the preparation process and reduce the cost of metal- supported solid oxide fuel cells (MS-SOFCs). However, the drastic shrinkage of oxide substrate during reduction can cause structural damage of MS-SOFCs. Herein, yttria-stabilized zirconia (YSZ) is incorporated to tailor the physical properties of NiFe substrate and structural stability of MS-SOFCs. The results show that the incorporation of YSZ phase leads to significantly suppressed sintering and grain growth during high temperature sintering and reduction processes as well as mitigated shrinkage of substrate and improved flatness of single cell during reduction process. The incorporation of YSZ phase also significantly enhances the mechanical strength and maintains acceptable electrical conductivity of the substrate. The single cell with the incorporation of 15 wt % YSZ phase into the NiFe substrate produces a peak power density of 1.02 W cm- 2 at 750 degrees C with no noticeable degradation during the galvanostatic test at 650 degrees C for 100 h. The present work provides a new strategy for the development of a NiFe metal substrate for robust MS-SOFCs.
Keyword :
Metal-supported solid oxide fuel cells Metal-supported solid oxide fuel cells NiFe substrate NiFe substrate Reduction shrinkage Reduction shrinkage Structural stability Structural stability
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GB/T 7714 | Liu, Xianghui , Lin, Pinghui , Qian, Jiaqi et al. Modulating the structural stability of NiFe metal-supported solid oxide fuel cells [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 114 : 1-8 . |
MLA | Liu, Xianghui et al. "Modulating the structural stability of NiFe metal-supported solid oxide fuel cells" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 114 (2025) : 1-8 . |
APA | Liu, Xianghui , Lin, Pinghui , Qian, Jiaqi , Zhang, Haipeng , Ai, Na , Guan, Chengzhi et al. Modulating the structural stability of NiFe metal-supported solid oxide fuel cells . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 114 , 1-8 . |
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Solid oxide fuel cells, one of the most efficient energy conversion devices, are prone to performance degradation induced by cation surface segregation and chromium poisoning of cathodes. Herein, we enhance the chromium-tolerance of La0.6Sr0.4Co0.2Fe0.8O3–δ (LSCF) cathode by the regulation of surface strains through modification with a nanoscale, dual-phase coating. The coating is composed of a nanoscale BaCoO3−δ conformal film and BaCeO3 nanoparticles, and the strong interactions at BaCoO3−δ/LSCF and BaCeO3/LSCF heterointerfaces impose a compressive strain on the LSCF scaffold. The strain effect significantly suppresses the strontium surface segregation and thus mitigates the chromium attack on the cathode. Further, the microstructural and phase stabilities of the coating in volatile chromium environment also contribute to the long-term operational stability of the modified LSCF cathode. A single cell with the modified LSCF cathode demonstrates an excellent peak power density of 1.46 W cm−2 at 750 °C and remarkable chromium-durability in wet air. This work opens up a new route for suppressing strontium surface segregation and chromium-poisoning of the cathodes. © 2025 Elsevier B.V.
Keyword :
Scaffolds (biology) Scaffolds (biology) Segregation (metallography) Segregation (metallography) Surface segregation Surface segregation
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GB/T 7714 | Huang, Jiongyuan , Qian, Jiaqi , Wang, Cheng Cheng et al. Mitigating chromium attack of cathode for durable solid oxide fuel cells through a strain regulation strategy [J]. | Chemical Engineering Journal , 2025 , 514 . |
MLA | Huang, Jiongyuan et al. "Mitigating chromium attack of cathode for durable solid oxide fuel cells through a strain regulation strategy" . | Chemical Engineering Journal 514 (2025) . |
APA | Huang, Jiongyuan , Qian, Jiaqi , Wang, Cheng Cheng , Chen, Zhiyi , Zhang, Haipeng , Cheng, Zixiang et al. Mitigating chromium attack of cathode for durable solid oxide fuel cells through a strain regulation strategy . | Chemical Engineering Journal , 2025 , 514 . |
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Protonic ceramic fuel cells (PCFCs) are promising for efficient, clean energy conversion at low to intermediate temperatures, but the widely used BaZr0.1Ce0.7Y0.1Yb0.1O3-delta (BZCYYb) electrolyte has poor chemical stability in humid environments. Herein, we show that under oxygen reduction reaction (ORR) conditions, water accumulates at the BaGd0.8La0.2Co2O6-delta (BGLC) cathode-BZCYYb electrolyte interface, causing selective loss of Ba cations and decomposition of BZCYYb electrolyte. The introduction of triply ion-electron conducting La2Ce2O7-delta (LCeO) into the BGLC cathode expands its active reaction area, accelerates ORR kinetics, and suppresses water accumulation at the cathode-electrolyte interface and electrolyte decomposition. A single cell with the BGLC-LCeO composite cathode achieves a peak power density of 1.07 W cm(-2) at 700 degrees C, with no profound degradation at 0.5 A cm(-2) over 100 h. These findings provide guidance for the development of high-performance, durable PCFCs.
Keyword :
Chemical stability Chemical stability Direct assembly Direct assembly Nanocomposite cathode Nanocomposite cathode Water accumulation Water accumulation
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GB/T 7714 | Huang, Xin-Rong , Qian, Jia-Qi , Zhang, Hai-Peng et al. Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells [J]. | RARE METALS , 2025 , 44 (8) : 5393-5403 . |
MLA | Huang, Xin-Rong et al. "Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells" . | RARE METALS 44 . 8 (2025) : 5393-5403 . |
APA | Huang, Xin-Rong , Qian, Jia-Qi , Zhang, Hai-Peng , Chen, Zhi-Yi , Lin, Chang-Gen , Huang, Jiong-Yuan et al. Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells . | RARE METALS , 2025 , 44 (8) , 5393-5403 . |
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Solid oxide cell (SOC) is a promising energy technology as they are capable of harmoniously and efficiently conversion of chemical and electrical energy. One of the important factors determining their efficiency and durability is the activity and stability of the electrodes and the electrode/electrolyte interface. In recent studies, sintering-free approach (SFA) have been developed for the in situ construction of electrodes, which preserve the nanostructure and high catalytic activity of the electrodes and enable the direct utilization of high-performance Co-containing electrodes on diverse electrolytes. Herein, research advances in the preparation of air electrodes, fuel electrodes, and both air and fuel electrodes by SFA are summarized, and the effects of polarization on electrode/electrolyte interface construction and interfacial elemental segregation are discussed. Both performance and stability are emphasized. Finally, the prospect of the SFA for the development of electrodes for SOCs with high catalytic activity and durability is discussed. © 2025
Keyword :
Catalyst activity Catalyst activity Durability Durability Electrodes Electrodes Phase interfaces Phase interfaces Sintering Sintering Solid electrolytes Solid electrolytes
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GB/T 7714 | Yue, Zhongwei , Chen, Zhiyi , Qian, Jiaqi et al. Progress in sintering-free nanoscaled electrodes of solid oxide cells: A review [J]. | International Journal of Hydrogen Energy , 2025 , 163 . |
MLA | Yue, Zhongwei et al. "Progress in sintering-free nanoscaled electrodes of solid oxide cells: A review" . | International Journal of Hydrogen Energy 163 (2025) . |
APA | Yue, Zhongwei , Chen, Zhiyi , Qian, Jiaqi , Zhang, Haipeng , Guo, Meiting , Lin, Zijing et al. Progress in sintering-free nanoscaled electrodes of solid oxide cells: A review . | International Journal of Hydrogen Energy , 2025 , 163 . |
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