Article
Chemistry, Physical
Ben Ma, Zhaohui Chen, Zhuang Lin, Lin Cheng, Yingke Zhou
Summary: This study investigates the effects of Mg doping on the performance of Mn-Cr spinel oxide cathodes in solid oxide fuel cells (SOFCs). Both experimental results and density functional theory (DFT) calculations show that Mg doping can optimize the electronic structure of the spinel oxide, increase the oxygen vacancy concentration, and improve the electrical conductivity and catalytic activity. The Mg-doped Mn-Cr spinel oxide cathode exhibits superior performance with high area-specific polarization resistance and maximum power density.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Imdadullah Thaheem, Shamshad Ali, Muhammad Waqas, Ayaz Hussain, Afaque Manzoor Soomro, Zuhaibuddin Bhutto, Syed Ali Raza Shah, Wazir Muhammad, Jalal Shah
Summary: In this study, NiCo2O4 spinel was developed as a cathode material for IT SOFCs using the GNP method. Characterization showed good chemical compatibility at 900 degrees C and high power density at 750 and 800 degrees C, suggesting the potential of NiCo2O4 as a cathode material for IT SOFC applications.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Materials Science, Ceramics
Zhangfa Huang, Zhijun Liu, Hua Hu, Jianxin Wang, Ming Chen, Baohua Cao, Qin Wang, Jun Yang, Wanbing Guan, Tongxiang Liang
Summary: A Co-containing composite cathode material with low thermal expansion coefficient and good compatibility has been prepared by the solid-liquid method. The cathode exhibits low polarization resistance and high power density, making it a promising material for intermediate temperature solid oxide fuel cells.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
K. P. Padmasree, Ke-Yu Lai, Arumugam Manthiram
Summary: The calcium cobaltite Ca(3-x)La(x)Co(4-y)CuyO(9+delta) doped with x and y = 0 and 0.1 showed slightly affected electrical and thermal properties, with the undoped sample exhibiting improved symmetrical cell performance in intermediate-temperature solid oxide fuel cells.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Kyeong Eun Song, Sung Hun Woo, Seung Wook Baek, Hyunil Kang, Won Seok Choi, Jun Young Park, Jung Hyun Kim
Summary: In the SmBa1-xCaxCo2O5+d oxide systems, different compositions exhibited various electrical conductivity and metal-insulator transition behaviors. Among them, SBCCO-0.8 showed the highest electrical conductivity, while SBCCO-0.9 demonstrated excellent ASR characteristic at high temperature. The crystal structures of SBCCO were identified as orthorhombic, with unique X-ray diffraction peaks.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Zhenwei Wang, Haibin Sun, Jiao Li, Xue Guo, Qiangqiang Hu, Zanzhong Yang, Fangyong Yu, Guochang Li
Summary: By infiltrating ESB, the polarization resistances and activation energy of LSCF cathodes were significantly reduced, improving the oxygen reduction reaction process and enhancing the performance of intermediate-temperature solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Fulan Zhong, Zhiyu Li, Yu Luo, Huihuang Fang, Kongfa Chen, Chen Zhou, Chongqi Chen, Li Lin, Lilong Jiang
Summary: In this study, we fabricated a series of cobalt-based spinel oxides as cathodes for direct ammonia solid oxide fuel cell (DA-SOFC). The results showed that the oxide with nickel exhibited higher electronic conductivity and oxygen reduction reaction (ORR) activity, leading to a higher power density.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2022)
Article
Chemistry, Physical
Caterina Sanna, Wenjing Zhang, Paola Costamagna, Peter Holtappels
Summary: The study reports the synthesis and electrochemical characterization of composite cathodes made from a mixture of LSCF and GDC nanofibers. The electrodes showed low polarization resistance at 650 degrees C, indicating promising potential for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Fulan Zhong, Zhiyu Li, Yu Luo, Chongqi Chen, Chen Zhou, Li Lin, Guohui Cai, Chaktong Au, Lilong Jiang
Summary: A complex spinel oxide catalyst was prepared to enhance the oxygen reduction reaction in intermediate-temperature solid oxide fuel cells (IT-SOFCs). The introduction of Ni doping optimized the oxidation states of Fe and Co ions, improving small polaron hopping and enhancing electrical conductivity. The electrochemical performance of the NFCO2-based IT-SOFCs outperformed other reported SOFCs with cathodes, achieving a high power density of 1.93 W/cm(2) at 800 degrees C.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Juntao Gao, Yingying Liu, Yuan Gao, Mengke Yuan, Zhe Wang, Zhe Lu, Qiang Li, Bo Wei
Summary: This study developed cobalt-free fluorine doped Bi0.7Sr0.3FeO3-6 oxides for energetic cathodes of low-temperature solid oxide fuel cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Sung Eun Jo, SungHyun Jeon, Hyong June Kim, Byung Chan Yang, Kyoungjae Ju, Turgut M. Gur, WooChul Jung, Jihwan An
Summary: This study presents a novel method for achieving uniform functional coatings on high-tortuosity structures using powder atomic layer deposition (ALD). The authors successfully applied a ZrO2 coating to a porous composite electrode for solid oxide fuel cells, resulting in effective suppression of chemical degradation and improved power density. The findings have important implications for high-performance and durable electrodes in energy conversion/storage devices.
Article
Chemistry, Physical
Changkun Cai, Manyi Xie, Ke Xue, Yu Shi, Shuting Li, Yuanyuan Liu, Shengli An, Hong Yang
Summary: This study successfully synthesized Ba2+-doped LBSCF materials and found that compared to undoped LSCF, Ba2+-doped LBSCF exhibits higher electrical conductivity and lower polarization resistance at 500-800 degrees Celsius, leading to a higher maximum power density for IT-SOFC technology.
Article
Chemistry, Physical
Seong-Uk Oh, Dokyum Kim, In-Taek Lee, Chan-Sik Choi, Jung-A Lee, Young-Woo Heo, Joon-Hyung Lee
Summary: In this study, spinel-structured Cu1.35Mn1.65O4 powder was coated onto stainless steel using electrophoretic deposition method for protective coating in solid oxide fuel cells. The coating was densified through the addition of iodine and heat treatment, resulting in improved resistance stability of the film.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Daqian Liu, Yingnan Dou, Tian Xia, Qiang Li, Liping Sun, Lihua Huo, Hui Zhao
Summary: Introducing lanthanide ions into B-site of simple perovskite oxides through doping can enhance electrode performance for solid oxide fuel cells, with BSCFP cathode showing the lowest polarization resistance at 700°C and delivering exceptional operating stability. The enhanced performance is attributed to increased electrical conductivity and optimized surface oxygen process achieved through experiments and DFT calculations.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Leyu Shen, Zhihong Du, Yang Zhang, Xu Dong, Hailei Zhao
Summary: The study shows that medium-entropy perovskites Sr(FeαTiβCoγMnζ)O3-δ (SFTCM) have potential as cathode materials for IT-SOFC, with lower thermal expansion coefficients, suppressed strontium surface segregation, and more stable polarization resistance while slightly reducing catalytic activity towards oxygen reduction reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Chemical
Bingjie Pang, Peng Zhang, Zhongwei Cao, Song Wang, Jingjing Tong, Xuefeng Zhu, Weishen Yang
Summary: The article introduces a method of coupling the CO2 capture process with in situ methanation process, using a ceramic-molten carbonate (MC) dual-phase membrane reactor and a nickel-based catalyst, which can effectively reduce CO2 capture costs and improve reaction performance.
Article
Chemistry, Multidisciplinary
Bingjie Pang, Shiqing Hu, Liming Zhang, Peng Zhang, Xuefeng Zhu, Weishen Yang
Summary: The non-perovskite cathode CaFe2O4 has been investigated for CO2 electrolysis in solid oxide electrolysis cells, showing improved CO2 adsorption and conductivity through a phase transition process. The cathode demonstrates high electrochemical performance, reaching a current density of 1.81 A cm(-2) at 1.6 V and 850 degrees C, and exhibits good stability even after long-term testing.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Jingyi Wang, Lili Cai, Zhongwei Cao, Xuefeng Zhu, Weishen Yang
Summary: In this study, four perovskite catalysts were prepared and tested for their catalytic performance in the oxidative coupling of methane. The results showed that Ce-based catalysts exhibited higher catalytic performance compared to Zr-based catalysts, and the addition of Y element significantly improved the selectivity of ethylene. By observing the active oxygen species and basic sites on different catalysts, BaCe0.8Y0.2O3-delta was found to have the best performance.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Weili Xie, Kaiyue Zhu, Hanmiao Yang, Weikang Jiang, Weijian Li, Zhengsen Wang, Weishen Yang
Summary: In this study, an air breathing cathode was constructed by coupling electrocatalysts for the oxygen reduction reaction in the cathode of nickel-zinc batteries, which improved the performance of Ni-Zn batteries. The novel battery (Ni-ZnAB) exhibited outstanding energy efficiency and long cycle life under lean electrolyte conditions, surpassing traditional Ni-Zn batteries. Furthermore, a mold cell with rich electrolyte achieved an ultrahigh stability, demonstrating the strong application potential of Ni-ZnAB.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Hongling Song, Yuan Peng, Chenlu Wang, Lun Shu, Chenyu Zhu, Yanlei Wang, Hongyan He, Weishen Yang
Summary: Introducing low dose amino side groups into metal-organic framework nanosheet membranes enables high-purity H-2 production and precise decarbonization. The optimized amino membranes set a new record in H-2/CO2 separation, demonstrating excellent molecular sieving ability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yuecheng Wang, Yujie Ban, Ziyi Hu, Weishen Yang
Summary: Highly compact metal-organic framework (MOF) membranes show promise in tackling challenging separation scenarios with industrial implications. Through a chemical self-conversion process, a continuous layer of layered double hydroxide (LDH) nanoflakes on an alumina support can transform into a MIL-53 membrane, resulting in highly compact architecture. This membrane can effectively dehydrate formic acid and acetic acid solutions and maintain stability in a corrosive chemical environment with a pH as low as 0.81. The energy consumption is significantly reduced compared to traditional distillation, saving up to 77%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Shiqing Hu, Bingjie Pang, Liming Zhang, Zhongwei Cao, Peng Zhang, Yunjie Ding, Ryan O'Hayre, Xuefeng Zhu, Weishen Yang
Summary: Preventing Ni oxidation and carbon deposition in CO2 electrolysis is a critical challenge for solid oxide electrolysis cells (SOECs). This study reveals that the Nernst voltage, in relation to the operating voltage, controls these reactions and enables the establishment of a reaction phase diagram. The successful demonstration of pure CO2 electrolysis without Ni oxidation and carbon deposition is achieved in Ni-based cathode supported SOECs.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Lixiao Zhang, Liming Zhang, Shiqing Hu, Xuefeng Zhu, Weishen Yang
Summary: In this study, a novel cathodic electrochemical activation method was proposed to construct a nano-Au/reduced-CeO2 interface, resulting in significantly improved CO2 electroreduction performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Multidisciplinary Sciences
Meng Zhao, Dong-Dong Zhou, Pin Chen, Yujie Ban, Yuecheng Wang, Ziyi Hu, Yutong Lu, Mu -Yang Zhou, Xiao-Ming Chen, Weishen Yang
Summary: Reliable membranes for hydrogen/carbon dioxide (H2/CO2) separation at high temperatures are urgently needed for sustainable energy. In this study, molecule gatekeepers locked in metal-organic framework membranes were used to address the challenge. Ab initio calculations and in situ characterizations showed that the molecule gatekeepers dynamically reshaped the sieving apertures to be tightly selective for CO2 at high temperatures and restored under cooler conditions, resulting in a significant improvement in H2/CO2 selectivity.
Review
Chemistry, Multidisciplinary
Weili Xie, Kaiyue Zhu, Hanmiao Yang, Weishen Yang
Summary: This article summarizes six key strategies for zinc anode research, including the use of 3D structures, coatings, alloying, additives, separators, and charge protocols. These strategies not only provide insights for improving zinc anodes but also enable flexible combinations to further enhance their overall performance. The article also proposes several future research directions, advancing the development of rechargeable alkaline zinc-based batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lun Shu, Yuan Peng, Hongling Song, Chenyu Zhu, Weishen Yang
Summary: A modular customization strategy was used to fabricate efficient metal-organic framework (MOF) membranes. MOF material screening, defect-free membrane output, membrane physicochemical property regulation, and separation applications can be rapidly achieved by separately designing and modifying the MOF module within the membrane. High separation performance can easily be achieved, meeting diverse separation requirements.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Weikang Jiang, Kaiyue Zhu, Weishen Yang
Summary: Aqueous zinc-ion batteries (ZIBs) are attracting attention due to their advantages. Vanadium-based cathode materials, with high theoretical capacity and diversified structures, are widely researched, but their practical applications are limited due to poor long-term cycling stability. This review focuses on the critical issues faced by vanadium-based cathodes in aqueous ZIBs, and proposes potential solutions. It summarizes the ion storage mechanisms, critical parameters affecting performance, and progress made in addressing the problems. Future directions for the development of practical aqueous ZIBs are suggested.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Engineering, Chemical
Hongling Song, Yuan Peng, Kun Li, Lun Shu, Chenyu Zhu, Weishen Yang
Summary: Researchers have successfully fabricated a low-cost two-dimensional membrane by using a rapid in situ growth strategy at room temperature, which has a few-layered thickness and intriguing surface undulations. This membrane showed excellent molecular sieving ability and opens up a new avenue for future scale-up of membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kaiyue Zhu, Hongxin Wang, Weikang Jiang, Weili Xie, Xu Li, Zhenghao Jia, Weishen Yang
Summary: In this study, MoVTe oxide with an M1 phase was used as a potential cathode material for aqueous Zn-ion batteries. The material exhibited broad and robust tunnels that facilitated reversible Zn2+ insertion/extraction and rich redox centers for charge redistribution, resulting in good battery performance. The storage mechanism of Zn2+ was observed at the atomic scale and the location of zinc ions within the cathode was accurately determined.
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
