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学者姓名：王欣
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福州开元寺铁佛是国内外现存最大的古代铁佛,古代工匠采用怎样的铸造工艺技术,亟待深入研究.根据观测和分析认为,为了将一段方柱铸接在其内腔,古代工匠对这尊大佛采用了分铸法的铸造方式.生铁表面的莱氏体组织和相成分是大佛具有良好腐蚀防护的材料基础,也说明当时所采用的熔铸温度很低.干泥浆和芯撑的存在,表明大佛可能采用了泥范铸造工艺;通过对内表面条纹和疤痕等的观察,表明古代工匠可能采用了异常复杂的浇铸系统,一次性完成主体结构的整铸成型.可以认为,古代工匠大致通过 10个主要的铸造工艺程序,最终制成巨型金身佛像.
Keyword ：
工艺 工艺 福州开元寺 福州开元寺 过程 过程 铁佛 铁佛 铸造 铸造
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| GB/T 7714 | 王欣 , 唐电 . 古代福建冶金瑰宝——大铁佛的铸造工艺过程 [J]. | 福建冶金 , 2024 , 53 (1) : 39-43 . |
| MLA | 王欣 等. "古代福建冶金瑰宝——大铁佛的铸造工艺过程" . | 福建冶金 53 . 1 (2024) : 39-43 . |
| APA | 王欣 , 唐电 . 古代福建冶金瑰宝——大铁佛的铸造工艺过程 . | 福建冶金 , 2024 , 53 (1) , 39-43 . |
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Ammonia (NH3) is an easy to store, zero-carbon emission hydrogen carrier. The current primary challenges in enhancing the yield and faradaic efficiency of the electrocatalytic nitrogen reduction reaction (NRR) for ammonia synthesis are widely recognized to be the inhibition of the competing hydrogen evolution reaction (HER) and the activation of N equivalent to N to facilitate its cleavage. Here we select perovskite oxide materials La0.6Sr0.4Co0.2Fe0.8+xO3-delta (LSCF0.8+x, x = 0-0.1) as the NRR electrode for the proton-conducting solid oxide electrolyzer cells (PCECs). We construct a more effective metal oxide interface via in situ exsolution of CoFe alloy nanoparticles (NPs), which promotes N equivalent to N activation and cleavage by applying a certain voltage at 500 degrees C, thereby accelerating the gradual synthesis of NH3 with proton H+. At 500 degrees C and 0.8 V, the maximum NH3 synthesis rate is 3.75 x 10(-9) mol s(-1) cm(-2) while the highest faradaic efficiency is 3.05%, and there is no damage to the microstructure after continuously working for 100 h, indicating that this material as the electrode is beneficial to the electrocatalytic synthesis of ammonia in PCECs.
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| GB/T 7714 | Du, Yufeng , Su, Xiang , Wang, Xin et al. In situ exsolved CoFe alloys over perovskite toward enhanced ammonia synthesis [J]. | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (22) : 10060-10066 . |
| MLA | Du, Yufeng et al. "In situ exsolved CoFe alloys over perovskite toward enhanced ammonia synthesis" . | NEW JOURNAL OF CHEMISTRY 48 . 22 (2024) : 10060-10066 . |
| APA | Du, Yufeng , Su, Xiang , Wang, Xin , Ye, Lingting , Xie, Kui . In situ exsolved CoFe alloys over perovskite toward enhanced ammonia synthesis . | NEW JOURNAL OF CHEMISTRY , 2024 , 48 (22) , 10060-10066 . |
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La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) with an extraordinary oxygen-ion conductivity has been extensively studied as an electrolyte material for intermediate temperature solid oxide cells (SOCs). However, the conventional hightemperature sintering process of electrodes results in detrimental reaction between LSGM and Ni-based hydrogen electrode and microstructural coarsening of the electrode. Herein, a buffer-layer-free LSGM electrolyte-supported single cell with a nanostructured Ni-Gd0.1Ce0.9O1.95 (GDC) electrode is developed using a sintering-free fabrication approach. The cell exhibits a peak power density of 1.23 W cm-2 at 800 degrees C and an electrolysis current density of 1.85 A cm-2 at 1.5 V with excellent operating stability. The good performance and durability is owing to the synergistic effects of the elimination of elemental interdiffusion at the electrode/ electrolyte interface, polarization induced in situ formation of hetero-interfaces between Ni-GDC and LSGM, and remarkable structural stability of Ni-GDC. This study provides an innovative means for the development of efficient and durable buffer-layer-free LSGM-supported SOCs.
Keyword ：
Buffer -layer -free Buffer -layer -free Elemental interdiffusion Elemental interdiffusion Interface formation Interface formation Nanostructure Nanostructure Sintering -free Sintering -free
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| GB/T 7714 | Qian, Jiaqi , Lin, Changgen , Chen, Zhiyi et al. High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 346 . |
| MLA | Qian, Jiaqi et al. "High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 346 (2024) . |
| APA | Qian, Jiaqi , Lin, Changgen , Chen, Zhiyi , Huang, Jiongyuan , Ai, Na , Jiang, San Ping et al. High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 346 . |
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Perovskite oxide La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) is an intermedium-temperature solid oxide cell electrolyte material with extraordinary oxygen-ion conductivity. However, the manufacturing procedures of LSGM discs are complex involving multiple steps of powder preparation, forming, and sintering at high temperatures. Herein, thin LSGM electrolyte discs are prepared by coupling of tape casting and in situ solid-state reaction using oxides/carbonates as the feedstock. A pure-phase LSGM electrolyte disc with uniform elemental distribution is obtained by sintering at 1450 degrees C, and it possesses an ionic conductivity of 0.105 S cm(1) at 800 degrees C, a thermal expansion coefficient of 12.2 x 10(6) K-1, and a bending strength of 156 MPa A 170 mu m thick LSGM electrolyte-supported single cell delivers a peak power density of 0.96 W cm(2) at 800 degrees C and an electrolysis current density of 1.82 A cm(2) at 1.5 V with no noticeable degradation for 200 h. The findings of this research provide a cost-effective approach for manufacturing the LSGM electrolytes of efficient and durable solid oxide cells.
Keyword ：
Electrolyte-support Electrolyte-support LSGM LSGM Solid oxide cells Solid oxide cells Solid-state reaction Solid-state reaction Tape casting Tape casting
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| GB/T 7714 | Lin, Changgen , Zhang, Yongmei , Qian, Jiaqi et al. Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells [J]. | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2024 , 44 (6) : 3818-3823 . |
| MLA | Lin, Changgen et al. "Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells" . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 44 . 6 (2024) : 3818-3823 . |
| APA | Lin, Changgen , Zhang, Yongmei , Qian, Jiaqi , Chen, Zhiyi , Huang, Jiongyuan , Ai, Na et al. Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2024 , 44 (6) , 3818-3823 . |
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A challenge hindering the development of durable solid oxide fuel cells (SOFCs) is the significant performance degradation of cathodes owing to poisoning by volatile Cr originating from the FeCr alloy interconnect. Herein, a heterogeneous catalyst coating, composed of Ba1-xCe0.8Gd0.2O3-delta and BaCO3, remarkably improves the oxygen adsorption, dissociation capability, and Cr resistance of a La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) cathode is demonstrated. The coherent heterointerface interactions formed between the catalyst coating and LSCF result in varied levels of surface strain and electrostatic interactions, significantly suppressing Sr surface segregation on LSCF. A single cell with the catalyst coating-decorated LSCF (CC-LSCF) achieves a peak power density of 1.73 W cm-2 at 750 degrees C, with no noticeable performance degradation for 100 h. The CC-LSCF cathode also exhibits outstanding durability under accelerated Cr poisoning conditions, compared with the tremendous degradation rate of 0.42% h-1 for the bare LSCF cathode. The enhanced Cr resistance is attributed to synergy induced by the stabilization of the lattice Sr cations by heterointerface interactions and the remarkable structural stability of the catalyst coating under Cr poisoning conditions. The novel heterointerface engineering strategy in this study provides insight into the design and development of active and Cr-tolerant cathodes. A heterogeneous catalyst coating composed of Ba1-xCe0.8Gd0.2O3-delta and BaCO3 remarkably improves the oxygen adsorption, dissociation capability, and Cr tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta cathode. The enhanced Cr tolerance is attributed to synergy induced by the stabilization of the lattice Sr cations by heterointerface interactions and the remarkable structural stability of the catalyst coating under Cr poisoning conditions. image
Keyword ：
chromium tolerance chromium tolerance heterointerfaces heterointerfaces solid oxide fuel cells solid oxide fuel cells Sr surface segregation Sr surface segregation strain strain
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| GB/T 7714 | Huang, Jiongyuan , Liang, Fujun , Zhao, Sunce et al. Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) . |
| MLA | Huang, Jiongyuan et al. "Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells" . | ADVANCED FUNCTIONAL MATERIALS 34 . 26 (2024) . |
| APA | Huang, Jiongyuan , Liang, Fujun , Zhao, Sunce , Zhao, Ling , Ai, Na , Jiang, San Ping et al. Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) . |
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Developing effective adsorbents for wastewater purification is crucial, as excessive emissions of toxic dyes and heavy metal ions have been proven harmful to ecosystems and human health. A NiFe-layered double hydroxide/graphitic porous carbon (NiFe-LDH/GPC) composite was fabricated by introducing NiFe-LDH nanosheets into GPC via a simple hydrothermal method to utilize the advantages of both materials fully, and thus ultimately obtain a composite adsorbent with improved adsorption properties. The samples obtained were comprehensively characterized by various characterization means, and the effects of several critical influential factors on the pollutant uptake capability of the NiFe-LDH/GPC were also studied through batch experiments. The results show that the as-synthesized NiFe-LDH/GPC exhibits a three-dimensional (3D) fluffy ultrathin-wall hierarchical porous structure, which possesses a high specific surface area and pore volume separately up to 506.74 m2/g and 0.22 cm3 g−1 as well as a relatively narrow pore size distribution. These characteristics bring advantages to enhance the adsorption ability of the NiFe-LDH/GPC for cationic/anionic dyes and heavy metal ions such as congo red (CR), malachite green (MG) and hexavalent chrome (Cr(VI), which reached the maximum adsorption capacity of 1726.51 mg/g, 1157.11 mg/g and 155.72 mg/g under the optimum conditions, respectively. Meanwhile, the adsorption behavior can be well described by the pseudo-second-order kinetic model and Langmuir isotherm model, reflecting that the sorption process mainly occurred chemically in the adsorbent monolayer. Furthermore, the NiFe-LDH/GPC maintained relatively high adsorption performance after multicycle testing, manifesting its good recyclability and stability. © 2024 Elsevier B.V.
Keyword ：
Adsorption Adsorption Cationic/anionic pollutant Cationic/anionic pollutant GPC GPC Hierarchical Hierarchical LDH nanosheet LDH nanosheet
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| GB/T 7714 | Zhang, X. , Li, W. , Wang, X. et al. A novel 3D hierarchical NiFe-LDH/graphitic porous carbon composite as multifunctional adsorbent for efficient removal of cationic/anionic dyes and heavy metal ions [J]. | Journal of Molecular Liquids , 2024 , 411 . |
| MLA | Zhang, X. et al. "A novel 3D hierarchical NiFe-LDH/graphitic porous carbon composite as multifunctional adsorbent for efficient removal of cationic/anionic dyes and heavy metal ions" . | Journal of Molecular Liquids 411 (2024) . |
| APA | Zhang, X. , Li, W. , Wang, X. , Su, M. , Lin, Q. . A novel 3D hierarchical NiFe-LDH/graphitic porous carbon composite as multifunctional adsorbent for efficient removal of cationic/anionic dyes and heavy metal ions . | Journal of Molecular Liquids , 2024 , 411 . |
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Metal-supported solid oxide fuel cells (SOFCs) have the merits of quick startup, low cost, and excellent robustness, however, there is a lack of understanding on the effect of thermally driven elemental diffusion. Herein, we investigate the role of elemental diffusion on the evolution of morphologies and electrochemical performance of Ni-Fe alloy supported Ni-yttria stabilized zirconia (YSZ) anode and YSZ electrolyte film. The results show that during the co-sintering process at high temperatures, there is significant diffusion of Fe element from the Ni-Fe oxide substrate to the anode and electrolyte. The elemental diffusion leads to the formation of a NiO core/NiFe2O4 shell structure in the anode and dissolution of Fe cations in the YSZ lattices of anode and electrolyte, but also significantly enhances the sinterability of both layers. The negative effect of Fe diffusion induced microstructure coarsening is largely compensated by the formation of an electrocatalytically active Ni-Fe alloy in the reduced anode. The present work provides insights into the design and development of effi-cient metal-supported SOFCs by taking advantage of elemental diffusion.
Keyword ：
Elemental diffusion Elemental diffusion Metallic substrate Metallic substrate Microstructure coarsening Microstructure coarsening Solid oxide fuel cells Solid oxide fuel cells
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| GB/T 7714 | Lin, Xu , Xu, Jianghui , Chen, Zhiyi et al. Thermally driven long-distance elemental diffusion enhances the sinterability of anode and electrolyte of metal-supported solid oxide fuel cells [J]. | JOURNAL OF POWER SOURCES , 2023 , 555 . |
| MLA | Lin, Xu et al. "Thermally driven long-distance elemental diffusion enhances the sinterability of anode and electrolyte of metal-supported solid oxide fuel cells" . | JOURNAL OF POWER SOURCES 555 (2023) . |
| APA | Lin, Xu , Xu, Jianghui , Chen, Zhiyi , Ai, Na , Lue, Zhe , Jiang, San Ping et al. Thermally driven long-distance elemental diffusion enhances the sinterability of anode and electrolyte of metal-supported solid oxide fuel cells . | JOURNAL OF POWER SOURCES , 2023 , 555 . |
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Nanofibers have great promise as a highly active air electrode for reversible solid oxide cells (ReSOCs); however, one thorny issue is how to adhesively stick nanofibers to electrolyte with no damage to the original morphology. Herein, PrBa0.8Ca0.2Co2O5+delta (PBCC) nanofibers are applied as an air electrode by a facile direct assembly approach that leads to the retention of most of the unique microstructure of nanofibers, and firm adhesion of the nanofiber electrode onto the electrolyte is achieved by applying electrochemical polarization. A single cell with the PBCC nanofiber air electrode exhibits excellent maximum power density (1.97 W cm-2), electrolysis performance (1.3 A cm-2 at 1.3 V), and operating stability at 750 degrees C for 200 h. These findings provide a facile means for the utilization of nanofiber electrodes for high-performance and durable ReSOCs.
Keyword ：
direct assembly direct assembly double perovskite double perovskite interface interface nanofibers nanofibers reversible solid oxide cells reversible solid oxide cells
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| GB/T 7714 | Chen, Zhiyi , Jiang, Lizhen , Yue, Zhongwei et al. Facile Approach for Improving the Interfacial Adhesion of Nanofiber Air Electrodes of Reversible Solid Oxide Cells [J]. | ACS APPLIED MATERIALS & INTERFACES , 2023 . |
| MLA | Chen, Zhiyi et al. "Facile Approach for Improving the Interfacial Adhesion of Nanofiber Air Electrodes of Reversible Solid Oxide Cells" . | ACS APPLIED MATERIALS & INTERFACES (2023) . |
| APA | Chen, Zhiyi , Jiang, Lizhen , Yue, Zhongwei , Dong, Dehua , Ai, Na , Jiang, San Ping et al. Facile Approach for Improving the Interfacial Adhesion of Nanofiber Air Electrodes of Reversible Solid Oxide Cells . | ACS APPLIED MATERIALS & INTERFACES , 2023 . |
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Degradation of cathodes caused by the gaseous Cr species from a Fe-Cr alloy interconnect is a key issue in the development of durable solid oxide fuel cells technologies. Herein, we explore the effect of infiltration of BaCO3 nanoparticles on the electrocatalytic performance and Cr-tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) cathodes. The BaCO3 increases the performance of LSCF and the single-cell delivers a peak power density of 1.30 W cm-2 at 800 degrees C. The BaCO3 gives rise to no Cr deposition and Sr segregation on LSCF after exposure in gaseous CrO3, while a BaCrO4 surface layer is deposited on the cathode in contact with a Fe-Cr alloy. The synergetic effects of BaCrO4 layer on mitigating the reaction between segregated Sr and Cr2O3 and the very slow kinetics of reaction between BaCO3 and CrO3 contribute to the exceptional Cr-tolerance of the BaCO3 infiltrated LSCF cathodes.
Keyword ：
BaCO3 infiltration BaCO3 infiltration Barium chromate Barium chromate Chromium-tolerance Chromium-tolerance Solid oxide fuel cells Solid oxide fuel cells
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| GB/T 7714 | Huang, Jiongyuan , Liu, Quan , Jiang, San Ping et al. Promotional role of BaCO3 on the chromium-tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta cathodes of solid oxide fuel cells [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 321 . |
| MLA | Huang, Jiongyuan et al. "Promotional role of BaCO3 on the chromium-tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta cathodes of solid oxide fuel cells" . | APPLIED CATALYSIS B-ENVIRONMENTAL 321 (2023) . |
| APA | Huang, Jiongyuan , Liu, Quan , Jiang, San Ping , Zhao, Ling , Ai, Na , Wang, Xin et al. Promotional role of BaCO3 on the chromium-tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta cathodes of solid oxide fuel cells . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2023 , 321 . |
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Nanostructured air electrodes play a crucial role in improving the electrocatalytic activity of oxygen reduction and evolution reactions in solid oxide cells (SOCs). Herein, we report the fabrication of a nanostructured BaCoO3- decorated cation-deficient PrBa0.8Ca0.2Co2O5+delta (PBCC) air electrode via a combined modification and direct assembly approach. The modification approach endows the dual-phase air electrode with a large surface area and abundant oxygen vacancies. An intimate air electrode-electrolyte interface is in situ constructed with the formation of a catalytically active Co3O4 bridging layer via electrochemical polarization. The corresponding single cell exhibits a peak power density of 2.08 W cm-2, an electrolysis current density of 1.36 A cm-2 at 1.3 V, and a good operating stability at 750 degrees C for 100 h. This study provides insights into the rational design and facile utilization of an active and stable nanostructured air electrode of SOCs.
Keyword ：
cation defects cation defects dual-phase catalyst dual-phase catalyst electrolyte-electrode interface electrolyte-electrode interface nanostructured air electrode nanostructured air electrode solid oxide cells solid oxide cells
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| GB/T 7714 | Yue, Zhongwei , Jiang, Lizhen , Chen, Zhiyi et al. Ultrafine, Dual-Phase, Cation-Deficient PrBa0.8Ca0.2Co2O5+? Air Electrode for Efficient Solid Oxide Cells [J]. | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (6) : 8138-8148 . |
| MLA | Yue, Zhongwei et al. "Ultrafine, Dual-Phase, Cation-Deficient PrBa0.8Ca0.2Co2O5+? Air Electrode for Efficient Solid Oxide Cells" . | ACS APPLIED MATERIALS & INTERFACES 15 . 6 (2023) : 8138-8148 . |
| APA | Yue, Zhongwei , Jiang, Lizhen , Chen, Zhiyi , Ai, Na , Zou, Yuanfeng , Jiang, San Ping et al. Ultrafine, Dual-Phase, Cation-Deficient PrBa0.8Ca0.2Co2O5+? Air Electrode for Efficient Solid Oxide Cells . | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (6) , 8138-8148 . |
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