Article
Chemistry, Physical
Tongtao Wan, Hongyu Wang, Lanlan Wu, Changcheng Wu, Zisheng Zhang, Shuming Liu, Jing Fu, Jingde Li
Summary: The development of highly stable metal oxide-supported catalysts is important for electrochemical energy conversion devices, such as rechargeable zinc-air batteries. In this study, a three-dimensional conductive niobium-doped TiO-TiO2 heterostructure supported ZIF-67-derived Co-NC bifunctional catalyst was fabricated. The catalyst exhibited excellent ORR/OER activity, with an onset potential of 0.95 V vs. RHE and a half-wave potential of 0.86 V vs. RHE for ORR, and an OER overpotential of 480 mV at 10 mA cm(-2). The zinc-air battery using this catalyst showed outstanding cycling stability over 225 h cycles tested at 10 mA cm(-2).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Changfei Huang, Yishuai Zhang, Xiaowen Li, Haijie Cao, Youmin Guo, Chuanhui Zhang
Summary: Manganese-incorporated Co3O4 catalysts, prepared through thermal pyrolysis of ZIF-67, showed enhanced electrocatalytic activity for oxygen reduction and evolution reactions. The catalyst annealed at 450 degrees C exhibited the best performance in terms of catalytic activity, delivering high power density and good cycling stability in zinc-air battery applications. The improved catalytic activity can be attributed to the introduction of manganese and the induced structural changes.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Chemistry, Multidisciplinary
Bingbing Cheng, Zi-Jian Zheng, Xianze Yin
Summary: Solid-state lithium metal batteries (SSLMBs) have the advantages of high energy density and safety. However, the chemical instability of battery components when exposed to humid air leads to performance degradation. This review summarizes the causes, consequences, and corresponding solution strategies for battery performance degradation when the components are exposed to humid air.
Review
Chemistry, Multidisciplinary
Xu Liu, Guangying Zhang, Lei Wang, Honggang Fu
Summary: This review discusses the crucial oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) mechanisms in zinc-air batteries (ZABs) and the importance of developing efficient and stable bifunctional ORR/OER catalysts to enhance ZAB performance. Additionally, it summarizes the improvements in energy efficiency, stability, and environmental adaptability of ZAB by introducing additional reactions and altering the OER pathway.
Article
Chemistry, Physical
Yijun Zhong, Xiaomin Xu, Chao Su, Moses Oludayo Tade, Zongping Shao
Summary: Transition metal oxide materials are promising alternatives to expensive and precious metal-containing oxygen catalysts. This study proposes a new type of La1.6Sr0.4MnCoO6 nanomaterial with perovskite-like structure for efficient oxygen reduction and evolution reactions. The rational design and integration strategies greatly enhance the catalytic performance of the material.
Article
Chemistry, Physical
David L. Burnett, Enrico Petrucco, Reza J. Kashtiban, Stewart F. Parker, Jonathan D. B. Sharman, Richard Walton
Summary: This study investigated iridate pyrochlore oxides as electrocatalysts for the oxygen evolution reaction under acid conditions, showing high activity with materials like sodium-free Ca2-xIr2O6·nH2O being the most effective. The materials also exhibited minimal carbon corrosion in membrane electrode assemblies, making them suitable for use in proton exchange membrane devices. Under strongly acidic conditions, the pyrochlore structure maintained its electrocatalytic activity, with charge balance achieved by inclusion of protons in the structure.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Ximing Deng, Yajun Mi, Yuheng Liu, Yan Sun, Yangshuai Cheng, Wei Wang
Summary: Developing inexpensive and efficient bifunctional oxygen catalysts is crucial for zinc-air batteries (ZABs). A composite of Co, N co-doped carbon nanosheets coupled with NiCo2O4 (NiCo2O4/CoNC-NS) has been developed as an oxygen catalyst, demonstrating good bifunctional oxygen catalytic activity and durability. The assembled liquid ZABs based on NiCo2O4/CoNC-NS exhibit high open circuit potential, peak power density, and large specific capacity, while the solid ZABs also demonstrate high potential, good power density, and superior stability. This work provides a valuable reference for the development of advanced oxygen catalysts in the future.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Junsheng Chen, Jianfeng Huang, Ran Wang, Weihang Feng, Hai Wang, Tianmi Luo, Yuzhu Hu, Chengke Yuan, Liangliang Feng, Liyun Cao, Koji Kajiyoshi, Chaozheng He, Yijun Liu, Zhenjiang Li, Yongqiang Feng
Summary: A novel and efficient ruthenium single-atom catalyst is synthesized and shows superior electrocatalytic activities and long-term durability. The fabricated overall water splitting cell and rechargeable zinc-air battery based on this catalyst exhibit excellent electrochemical performance and long-lasting durability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Jin Liu, Xingcheng Xiao, Daad Haddad, Qinglin Zhang, Mei Cai, Sherman Zeng
Summary: The study shows that using lithium-ion exchanged zeolite (Li-zeolite) as an additive to cathode electrodes can improve battery cycle life, especially performing better at high temperatures. Li-zeolite is envisioned as a low-cost and scalable path to enhance the performance of LMO and LMO blended electrodes.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Beum Jin Park, Hongdae Lee, Jiyoung Kim, Ho Seok Park
Summary: In this study, multidimensional hybrid architectures of CoSx@srGO/CNT were developed for rechargeable Zn-air batteries. The CoSx@srGO/CNT showed superior bifunctional electrocatalytic activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) compared to CoS2, srGO, and CoSx@srGO. The Zn-air batteries with CoSx@srGO/CNT catalyst exhibited higher specific capacity and maximum power density than Pt/C and IrO2 mixed catalyst, along with long-term cyclability of over 100 cycles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yaling Gao, Tongrui Zhang, Yuezhen Mao, Jingyu Wang, Chunwen Sun
Summary: In this study, CoFeRu-LDH catalyst with bifunctional properties was successfully synthesized by hydrothermal method and partial oxidation, resulting in oxides/LDH. The catalyst exhibited excellent bifunctional activity in zinc-air batteries, with a high voltage difference and good cycle stability, demonstrating its potential practical application.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Zheng Yang, Jingxia Gao, Ping Zhu, Xinsheng Zhao, Guoxiang Wang, Sa Liu
Summary: This study introduces a type of S,N co-doped mesoporous carbon hybrids decorated with encapsulated cobalt sulfide nanoparticles, which exhibits excellent electrocatalytic activities due to the synergistic effect between the Co(x)S(y) nanoparticles and graphitic-carbon matrices. The hybrid shows superior performance in both oxygen reduction and oxygen evolution, providing a potential option for air-electrode catalysts in advanced Zn-air batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Vishal Kotha, Imran Karajagi, Prakash C. Ghosh, Leela S. Panchakarla
Summary: In this study, we developed a low-temperature hydrothermal strategy to produce a perovskite oxide-based catalyst with excellent oxygen reduction and oxygen evolution reaction performance in alkaline environment. Furthermore, this catalyst exhibited unprecedented stability in zinc-air batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Li Song, Haiyu Fan, Tao Wang, Tengfei Xiang, Mingdao Zhang, Chuangang Hu, Wei Zhou, Jianping He
Summary: A highly active and stable electrocatalyst (Co@N-CNT) is synthesized through a solid-state thermal conversion process, showing remarkable bifunctional activities and superior durability with the best ORR active site as Co@graphitic N-C and the best OER active site as Co@pyridinic N-C.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Chenlong Dong, Xilin Zhang, Shaoning Zhang, Siwei Zhao, Xueyu Lin, Xin Wang, Yajing Zhang, Fuqiang Huang
Summary: Highly integrated bifunctional oxygen electrocatalysts, cobalt-tin alloys coated by nitrogen doped carbon (CoSn@NC), prepared by MOFs-derived method, accelerate the development of high-performance Zn-air battery. CoSn@NC exhibits superior air-cathode electrocatalytic performance in Zn-air battery compared to Pt/C + IrO2 catalyst.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)