Article
Chemistry, Multidisciplinary
Aryal Krishna Prasad, Jong -Young Park, Hui Yeong Jung, Je Woo Kang, Soon-Hyung Kang, Kwang-Soon Ahn
Summary: A thin film of nickel-intermixed tungsten oxide (Ni-WO3) composite was fabricated using a simple one-step electrochemical deposition method. The composite film exhibited enhanced electrochromic energy storage properties compared to the individual Ni(OH)2 and WO3 thin films. The improved performance was attributed to the crosslinked and deagglomerated surface of the composite film, which enhanced the electrochemically active surface area and charge transfer kinetics. The Ni-WO3 thin film showed high coloration efficiency, optimum optical contrast, fast coloration response, and excellent capacitance retention.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Energy & Fuels
Hui Gong, Shuyi Wang, Ming Xie, Hao Wang
Summary: Electrochromic energy storage devices integrate energy storage and electrochromism into a smart device that allows for the visualization of energy levels. This study proposes an aqueous aluminum-ion electrochromic energy storage device with polyaniline (PANI) cathode, Al metal frame anode, and AlCl3 electrolyte. The device exhibits fast self-bleaching behavior, excellent energy storage performance, and large optical modulation. It also has the ability to switch between multiple colors based on voltage, making it suitable for smart windows and energy storage displays.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Energy & Fuels
Jisu Han, Gyu-Hyeon Jang, Dae Kyom Kim, Joo Yeon Kim, Jin Wook Shin, Chi-Sun Hwang, Yuanzhe Piao, Tae-Dong Kim
Summary: By utilizing graphene and modified PEDOT:PSS, we have successfully fabricated a device with electrochromic and supercapacitive functions. The graphene electrode exhibited superior electrochemical properties, including higher capacitance and transmittance change.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Electrochemistry
Aryal Krishna Prasad, Jong-Young Park, Soon-Hyung Kang, Kwang-Soon Ahn
Summary: The study prepared a W-V mixed metal oxide composite thin-film structure comprising WO3 and V2O5, which showed remarkable performance in both electrochromic and electrochemical energy storage applications, such as fast coloration response and high capacitance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Haitao Liu, Yongxiang Wang, Hengyu Wang, Haolin Xie, Yinghan Li, Peng Zou, Jinming Zeng, Tongxiang Liang, Xiaopeng Qi
Summary: In this work, nanoporous Sm-doped WO3 (WSm) films were constructed using hydrothermal technology, and polydopamine (PDA) was modified on the surface of WSm film to obtain WSm/Px (x = 0.25, 0.5, 1.0, and 2.0) hybrid films. The WSm/Px hybrid films exhibited high optical contrast, large areal capacitance, faster response speed, and better cyclic stability compared to the WSm film, thanks to the enhanced ion transport ability and electrochemical structural stability of the nanoporous WSm film by the PDA modification. Particularly, the WSm/P1.0 hybrid film showed a colored/bleached times of 7.4/2.9 s and retained 90.2% of the primitive optical contrast after 5000 electrochromic cycles. Furthermore, the areal capacitance of WSm film could be increased by 224% through the modification of PDA. Therefore, WSm/Px hybrid films have great prospects for electrochromic energy-saving and storage windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Energy & Fuels
Yuwei Liu, Sheng Cao, Yi Liang, Xinxin Han, Tao Yang, Ruosheng Zeng, Jialong Zhao, Bingsuo Zou
Summary: Researchers have designed a robust and swiftly multicolor electrochromic energy storage device based on a polyaniline cathode. By studying the EC properties of polyaniline in aqueous and organic Zn2+ electrolytes, they found that the PANI film measured in organic Zn2+ electrolyte exhibited better EC performance and high specific capacitance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Nanoscience & Nanotechnology
Hongzhao Wu, Honglong Ning, Muyun Li, Chenxiao Guo, Xinglin Li, Tian Qiu, Zhuohui Xu, Cheng Luo, Rihui Yao, Junbiao Peng
Summary: This study successfully fabricated nanostructured tungsten oxide with different copper doping concentrations using a solvothermal method and found that the area-specific capacitance of the films increased with increasing doping concentration. Characterization techniques including X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy, cyclic voltammetry, and chronoamperometry confirmed that the films were reticular structures composed of nanowires. Copper doping improved electron conductivity and shortened ion transmission distance, leading to enhanced energy storage properties.
Article
Materials Science, Multidisciplinary
Pritha Dutta, Subash Cherumannil Karumuthil, Rahuldeb Roy, Ashutosh K. Singh
Summary: This study proposes a simple and cost-effective chemical oxidative polymerization method to develop a highly stable and electrochromically active nanocomposite consisting of poly-(o-methoxyaniline) (PMOANI) and WO3 nanoflowers. The nanocomposite exhibits a high areal capacitance of 83 mF/cm(2) and a specific capacitance of 133.16 F/g. Moreover, an ECS device is successfully fabricated using the nanocomposite, demonstrating its stable and prolonged charge-discharge cycles and its capability as a power source with a real-time energy level indicator for a timer display.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shahzad Abu Bakar, Sohail Ahmed, Muhammad Ali Ehsan, Hammad Ahmed, Rijha Baig, Syed Mustansar Abbas, Muhammad Siddique, Sara Qaisar
Summary: An optimized, facile and low-cost approach was used to fabricate a prototype electrochromic device by doping an ionic liquid into conducting polymer. The EC electrodes showed efficient bleaching and colouring time with the optimum concentration of the IL, and the portable ECD exhibited durable cyclic stability. The portable ECDs are expected to be a good candidate for smart displays and intelligent windows applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Aziz Aynaou, Boubaker Youbi, Youssef Lghazi, Mohammed Ait Himi, Chaimaa El Haimer, Jihane Bahar, Ahmed Sahlaoui, Itto Bimaghra
Summary: In this study, polyaniline films were fabricated on ITO substrates using different electrolytes. The effect of the counter ion on the electrochemical energy storage performances of polyaniline in supercapacitors was investigated. The specific capacitance was found to have a clear dependence on the counter ion.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Wenli Li, Jie Zhang, Yuhua Zheng, Yanbin Cui
Summary: In this study, Mo-doped crystalline/amorphous WO3 materials were successfully fabricated using hydrothermal and electrodeposition methods, combining the advantages of different WO3 structures. By optimizing the parameters, the EC material exhibited significant optical modulation, fast switching speeds, and high coloring efficiency. Furthermore, the devices based on these materials showed good cycling stability and high energy density.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Energy & Fuels
Nagaraju Macherla, Kuldeep Singh, Manjula Nerella, Kusum Kumari, Ram Gopal Reddy Lekkala
Summary: In this study, PANI nanostructures were successfully grown on S-doped reduced graphene oxide nanosheets using a facile hydrothermal method combined with soft template polymerization. The effect of different wt% of S-rGO on the structural, morphology, and electrochemical performance of the SPANI/S-rGO composites was evaluated. The resulting SPANI/S-rGO10 composite electrode material showed a high specific capacitance and cycling stability, making it a promising candidate for high-performance supercapacitors.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Bon-Ryul Koo, Myeong-Hun Jo, Kue-Ho Kim, Hyo-Jin Ahn
Summary: The newly synthesized low-temperature a-quantized WO3·H2O films show promising performance in EC energy storage devices, improving transmittance and specific capacitance. By inducing quantization of a-WO3, the films increase the number of electroactive sites, provide abundant oxygen vacancies, widen the band gap, and stabilize the structure with intercalated water molecules, resulting in efficient charge transfer and stress alleviation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Junlong Niu, Jiaqiang Zhang, Yi Wang, Lei Hu, Shengwei Tang, Zhongquan Wan, Chunyang Jia, Xiaolong Weng, Longjiang Deng
Summary: A multifunctional electrochromic device with integrated optical, thermal management, and energy storage functionalities has been successfully developed, showing reversible color changes and high specific capacitance. The device also features lightweight, thinness, flexibility, and can be used in electronic clothing, military camouflage, and aerospace thermal control systems.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Inorganic & Nuclear
Shen Wang, Hongbo Xu, Jiupeng Zhao, Yao Li
Summary: In this study, 2D WO3 nanosheet arrays with unique structure were successfully prepared, showing excellent optical-electrochemical performance in AlCl3 electrolyte, with high areal capacity and good optical modulation effect.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Chenxi Hu, Huili Cao, Shenyu Wang, Nannan Wu, Song Qiu, Hailong Lyu, Jiurong Liu
NEW JOURNAL OF CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Hailong Lyu, Peipei Li, Jiurong Liu, Shannon Mahurin, Jihua Chen, Dale K. Hensley, Gabriel M. Veith, Zhanhu Guo, Sheng Dai, Xiao-Guang Sun
Article
Chemistry, Physical
Yongfen Tong, Hailong Lyu, Yuzhong Xu, Bishnu Prasad Thapaliya, Peipei Li, Xiao-Guang Sun, Sheng Dai
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Multidisciplinary
Bishnu P. Thapaliya, Charl J. Jafta, Hailong Lyu, Jiexiang Xia, Harry M. Meyer, M. Parans Paranthaman, Xiao-Guang Sun, Craig A. Bridges, Sheng Dai
Article
Chemistry, Physical
Hailong Lyu, Yunchao Li, Charl J. Jafta, Craig A. Bridges, Harry M. Meyer, Albina Borisevich, Mariappan Parans Paranthaman, Sheng Dai, Xiao-Guang Sun
JOURNAL OF POWER SOURCES
(2019)
Article
Chemistry, Physical
Kai Liu, Susheng Tan, Jisue Moon, Charl J. Jafta, Cheng Li, Takeshi Kobayashi, Hailong Lyu, Craig A. Bridges, Shuang Men, Wei Guo, Yifan Sun, Jinli Zhang, M. Parans Paranthaman, Xiao-Guang Sun, Sheng Dai
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Hailong Lyu, Jianlin Li, Tao Wang, Bishnu P. Thapaliya, Shuang Men, Charl J. Jafta, Runming Tao, Xiao-Guang Sun, Sheng Dai
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Zhenzhen Yang, Tao Wang, Hao Chen, Xian Suo, Phillip Halstenberg, Hailong Lyu, Wei Jiang, Shannon M. Mahurin, Ilja Popovs, Sheng Dai
Summary: Organic electrode materials, specifically the nanoporous fluorinated covalent quinazoline networks (F-CQNs) constructed in this study, exhibit high nitrogen content, extended pi-conjugated structure, and layered architecture, leading to superior performance as cathode sources for lithium-ion batteries with high capacity, rate capability, and cycling stability.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Meng-Siou Wu, Nhu T. H. Luu, Teng-Hao Chen, Hailong Lyu, Te-Wei Huang, Sheng Dai, Xiao-Guang Sun, Alexander S. Ivanov, Jui-Chin Lee, Ilja Popovs, Watchareeya Kaveevivitchai
Summary: Organic electrode materials offer advantages such as low toxicity and sustainability, but improvements in redox potential, capacity, cycling stability, and electronic conductivity are needed to compete with inorganic-based compounds. The molecular design of HATAQ with extended pi-conjugation shows promising results for achieving exceptionally high energy density, rate capability, and cycling stability in organic electrodes.
ADVANCED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Nicholas S. Grundish, Hailong Lyu, Ieuan D. Seymour, Graeme Henkelman, Hadi Khani
Summary: A strategy of substituting Na+ and Fe3+ for Ni2+ is employed to successfully suppress the structural phenomena in layered Na3Ni2SbO6 cathode material, resulting in a sloping voltage curve. Sodium doping into the MO2 layer remains a promising strategy for enabling commercial Na-xMO2 cathodes by lowering the kinetic barrier.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Green & Sustainable Science & Technology
Hailong Lyu, Xiao-Guang Sun, Sheng Dai
Summary: With the rapid development of energy storage systems, the search for sustainable and green organic cathode materials has become a focus. Organic cathode materials possess advantages of high specific capacity, environmental friendliness, and safety, but also face challenges to be addressed.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2021)
Article
Chemistry, Physical
Hailong Lyu, Charl J. Jafta, Ilja Popovs, Harry M. Meyer, Jordan A. Hachtel, Jingsong Huang, Bobby G. Sumpter, Sheng Dai, Xiao-Guang Sun
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Li Zhang, Qinghong Zhang, Hongyong Xie, Jiang Guo, Hailong Lyu, Yaogang Li, Zhiguo Sun, Hongzhi Wang, Zhanhu Guo
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
Meeting Abstract
Chemistry, Multidisciplinary
Bishnu Prasad Thapaliya, Chi-Linh Do-Thanh, Hailong Lyu, Xiao-Guang Sun, Sheng Dai
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
