Article
Chemistry, Multidisciplinary
Shaojie Chen, Jingxuan Zhang, Zeyu Wang, Lu Nie, Xiangchen Hu, Yi Yu, Wei Liu
Summary: Lithium-sulfur batteries have high theoretical energy densities, but face challenges in large-scale commercialization due to the sulfur polysulfide shuttle effect and low sulfur loading. This study demonstrates a flexible lithium-sulfur battery with high sulfur loading using NiCo2O4 nanofiber array grown carbon cloth, achieving good cycle stability.
Article
Chemistry, Physical
Lei Chen, Yehui Yuan, Raphael Orenstein, Meltem Yanilmaz, Jin He, Jian Liu, Yong Liu, Xiangwu Zhang
Summary: Lithium-sulfur batteries, as promising next-generation energy storage devices, have a higher theoretical capacity and energy density compared to lithium-ion batteries. Carbon materials, with their adjustable structure and functionality, are well suited for building flexible components of lithium-sulfur batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Lulu Bai, Junsheng Ma, Hongquan Song, Ya Yang, Chunyi Zhi, Sang-Young Lee, Haipeng Yu, Shouxin Liu, Jian Li, Mingpeng Yu, Wenshuai Chen
Summary: A novel hybrid cathode composed of wood nano-cellulose and commercial carbon nanotubes was shown to effectively increase active sulfur loading, enhance electrolyte penetration, alleviate polysulfide ion dissolution and shuttling, and promote fast electron transportation, resulting in excellent cycling stability and high Coulombic efficiency in lithium-sulfur batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
He Wang, Han Su, Hongling Guo, Mingzhi Yang, Weiliang Liu, Jinshui Yao, Manman Ren, Yuanhao Wang
Summary: Recently, there has been growing research interest in flexible batteries for commercial wearable electronic devices. The electrode of a flexible lithium-sulfur battery plays a crucial role in its development. This study successfully synthesized NiCoSe/holey carbon nanosheet on carbon cloth and used it as an efficient sulfur host for the flexible sulfur cathode. The unique structure of the electrode provides optimal conditions for sulfur loading and enables efficient transport of electrons and Li-ions. Additionally, the polar NiCoSe nanoparticles attached to the carbon fibers effectively anchor lithium polysulfides and enhance their conversion. The NiCoSe/CNS/CC/S electrode exhibits excellent electrochemical performance, maintaining a high discharge capacity even after 600 cycles.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jun-Ki Kim, Yunju Choi, Euh Duck Jeong, Sei-Jin Lee, Hyun Gyu Kim, Jae Min Chung, Jeom-Soo Kim, Sun-Young Lee, Jong-Seong Bae
Summary: In this study, microtube-like porous carbon (MPC) and tube-like porous carbon-sulfur (MPC-S) composites were synthesized and used as cathodes for lithium-sulfur batteries. The morphology and uniformity of these materials were characterized, and the electrochemical performance of the MPC-S cathodes was measured. The composite cathodes with a high sulfur content exhibited stable specific capacity after cycling.
Article
Materials Science, Multidisciplinary
Rui-Qing Liu, Feng Jin, Min Gu, Dong-Wen Zhang, Lu-Lu He, Wen-Xiu Liu, Wen-Feng Zhu, Kun Xie, Jing-Yi Wu, Yi-Ran Liu, Wei-Wei Yang, Xiu-Jing Lin, Li Shi, Xiao-Miao Feng, Zhen Hou, Ji-Gang Zhou, Yan-Wen Ma
Summary: This study demonstrates that the TiN nanorod array on carbon cloth can be used as a flexible host for highly stable Li-S batteries. The combination of TiN/CC improves conductivity, enhances polysulfide adsorption, and boosts the electrochemical performance of the battery.
Article
Chemistry, Multidisciplinary
Baozhi Yu, Ye Fan, Srikanth Mateti, Donggun Kim, Chen Zhao, Shengguo Lu, Xin Liu, Qiangzhou Rong, Tao Tao, Khagesh Kumar Tanwar, Xin Tan, Sean C. Smith, Ying Ian Chen
Summary: By utilizing stable lithium cloth anodes, polysulfone-functionalized separators, and sulfur/graphene/boron nitride nanosheet cathodes, the shuttle effect of polysulfides and the growth of lithium dendrites have been effectively controlled, leading to excellent mechanical flexibility and outstanding electrochemical performance in flexible lithium-sulfur batteries, indicating great potential for large-scale development of high-performance flexible batteries.
Review
Chemistry, Multidisciplinary
Tian Yang, Jun Xia, Zhihong Piao, Lin Yang, Shichao Zhang, Yalan Xing, Guangmin Zhou
Summary: The increasing demand for wearable electronic devices has led to a growing interest in flexible batteries with high stability and desirable energy density. Graphene, known for its good conductivity and flexibility, has been used in various components of flexible lithium-sulfur batteries to improve their flexibility, energy density, and cycling stability.
Article
Chemistry, Multidisciplinary
Yu-Chien Ko, Chun-Hsiang Hsu, Chang-An Lo, Chun-Ming Wu, Hung-Ling Yu, Chun-Han Hsu, Hong-Ping Lin, Chung-Yuan Mou, Heng-Liang Wu
Summary: In this study, a low-cost carbon material (XU76 carbon) was synthesized as a sulfur host to address the issues of polysulfide dissolution and shuttle effect in lithium-sulfur batteries. XU76 carbon, with high surface area, good electrical conductivity, and optimized distribution of interconnected micromesopores, efficiently traps polysulfide intermediates and improves sulfur redox kinetics. The sulfur-XU76 carbon cathode exhibits excellent cycling stability and high discharge capacity in experimental tests.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Physical
Qinghuiqiang Xiao, Jinlin Yang, Xiaodong Wang, Yirui Deng, Peng Han, Ning Yuan, Lei Zhang, Ming Feng, Chang-an Wang, Ruiping Liu
Summary: The article introduces the fabrication methods and research progress of flexible self-supporting cathodes with carbon materials as the substrate, emphasizing that carbon materials can meet the mechanical and electrochemical requirements of flexible electrodes, providing useful guidance for research in the field of LSB.
Article
Chemistry, Physical
Aashish Joshi, Avinash Raulo, Sumana Bandyopadhyay, Amit Gupta, Rajiv Srivastava, Bhanu Nandan
Summary: By tuning the electrical properties of a carbon cloth and using it as a current collector, the performance of lithium-sulfur batteries can be improved, leading to higher discharge capacity and cycling stability. The addition of a second layer as upper collector further enhances the initial capacity and cycling stability of the batteries. Moreover, the use of a flexible current collector opens up possibilities for the development of flexible and wearable energy storage devices.
Article
Chemistry, Physical
Chong Xie, Hui Shan, Xuexia Song, Liping Chen, Jingjing Wang, Jian-Wen Shi, Junhua Hu, Jiujun Zhang, Xifei Li
Summary: Flexible S@C-CNTs cathodes with controllable thicknesses were successfully fabricated in this study, demonstrating impressive mechanical strength and enhanced electrochemical performance. The cathodes exhibited an areal capacity close to 3.0 mA h cm(-2) and a breaking stress of 5.59 MPa, with excellent cyclic stability under both flat/bent conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Shuzheng Sun, Congcong Li, Mingkai Li, Guoxian Gu, Yanqin Yang, Jingde Li, Zisheng Zhang
Summary: A functional separator for lithium-sulfur (Li-S) batteries has been developed, which allows fast Li+ conduction while obstructing the penetration of polysulfides, leading to shuttle suppression and stable sulfur electrochemistry.
Article
Electrochemistry
Luna Yoshida, Takashi Hakari, Yukiko Matsui, Masashi Ishikawa
Summary: The study proposes a method of using polyglycerol-modified microporous carbon to suppress the dissolution issue in lithium-sulfur batteries, and demonstrates that it can improve the cycle performance of the batteries.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Shuai Zhang, Shenyi Xiao, Deping Li, Jialin Liao, Fengjun Ji, Hongbin Liu, Lijie Ci
Summary: This study summarizes the modification strategies of carbon cloth as a substrate for lithium metal batteries, which can enhance lithiophilicity and cycle life.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mi-Jin Kim, Hui-Ju Kang, Won Bin Im, Young-Si Jun
Article
Chemistry, Physical
Sayed Mukit Hossain, Heeju Park, Hui-Ju Kang, Jong Beom Kim, Leonard Tijing, Inkyu Rhee, Young-Si Jun, Ho Kyong Shon, Jong-Ho Kim
Article
Chemistry, Multidisciplinary
Hui-Ju Kang, Gazi A. K. M. Rafiqul Bari, Tae-Gyu Lee, Tamal Tahsin Khan, Jae-Woo Park, Hyun Jin Hwang, Sung Yong Cho, Young-Si Jun
Article
Chemistry, Physical
Sayed Mukit Hossain, Heeju Park, Hui-Ju Kang, Jong Seok Mun, Leonard Tijing, Inkyu Rhee, Jong-Ho Kim, Young-Si Jun, Ho Kyong Shon
Article
Chemistry, Physical
Hui-Ju Kang, Tae-Gyu Lee, Gazi A. K. M. Rafiqul Bari, Hye-Won Seo, Jae-Woo Park, Hyun Jin Hwang, Byeong-Hyeon An, Norihiro Suzuki, Akira Fujishima, Jong-Ho Kim, Ho Kyong Shon, Young-Si Jun
Summary: Modifying the physical and chemical structures of graphitic carbon nitride (g-CN) through sulfuric acid treatment can enhance its optoelectronic properties and provide a higher monomeric precursor for improved g-CN, leading to higher efficiency in photocatalytic water splitting performance.
Article
Chemistry, Physical
Jong-Ho Kim, Sayed Mukit Hossain, Hui-Ju Kang, Heeju Park, Leonard Tijing, Geun Woo Park, Norihiro Suzuki, Akira Fujishima, Young-Si Jun, Ho Kyong Shon, Geon-Joong Kim
Summary: In this study, anatase titania was modified with Al(OH)(3) and various organosilanes to prepare a durable photocatalytic paint with enhanced photoactivity towards NO oxidation and self-cleaning properties. Through a facile hydrolysis approach in ethanol, multiple organosilanes were coated on the parent titania surface to achieve both hydrophobic and hydrophilic regions for uniform dispersion and strong bonding with the organic matrix. The modified titania exhibited efficient NO removal and UV durability, showcasing the potential of ethanol hydrolysis of organosilanes for designing coatings on anatase titania for durable photoactive paint fabrication.
Article
Chemistry, Multidisciplinary
Jae-Woo Park, Hyun Jin Hwang, Hui-Ju Kang, Gazi A. K. M. Rafiqul Bari, Tae-Gyu Lee, Byeong-Hyeon An, Sung Yong Cho, Young-Si Jun
Summary: The research introduces a porous carbon material, MGC, that effectively mitigates the main challenge of LiPS dissolution from the cathode to the organic electrolyte in lithium-sulfur batteries. The preparation method and structure of MGC allow it to support high sulfur loading while maintaining high capacity.
Article
Environmental Sciences
Sayed Mukit Hossain, Heeju Park, Hui-Ju Kang, Jong Seok Mun, Leonard Tijing, Inkyu Rhee, Jong-Ho Kim, Young-Si Jun, Ho Kyong Shon
Summary: The study utilized sludges generated from dye wastewater treatment to retrieve photoactive titania, which was heterojunctioned with graphitic carbon nitride for enhanced photocatalytic activity in removing nitrogen oxides from the atmosphere. Advanced sample characterization confirmed successful heterojunction with improved morphological and optical attributes, leading to enhanced photoactivity in removing NOx under both UV and visible light irradiance.
Article
Chemistry, Physical
Tae-Gyu Lee, Hui-Ju Kang, Jong-Ho Kim, Norihiro Suzuki, Akira Fujishima, Minkee Choi, Young-Si Jun
Summary: Utilizing molten-salt synthesis based on alkali metal iodide can significantly enhance the photocatalytic activity of g-CN under sunlight, by controlled introduction of cyano functional groups and decomposition of tri-s-triazine to achieve high hydrogen evolution rates.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
Tae-Gyu Lee, Hui-Ju Kang, Gazi A. K. M. Rafiqul Bari, Jae-Woo Park, Hye-Won Seo, Byeong-Hyeon An, Hyun Jin Hwang, Young-Si Jun
Summary: This study develops monodisperse organic single-crystal monoliths with controllable dimensions, which are transformed into g-CN by thermal polycondensation, showcasing the potential to efficiently produce hydrogen via photoreforming. The dimensional tunability of the photocatalysts enables tailored catalytic activity for practical use and the formation of value-added products without compromising photocatalytic effectiveness in wastewater treatment.
Article
Chemistry, Multidisciplinary
Hong-Sik Kim, Hui-Ju Kang, Hongjin Lim, Hyun Jin Hwang, Jae-Woo Park, Tae-Gyu Lee, Sung Yong Cho, Se Gyu Jang, Young-Si Jun
Summary: To overcome the technical barriers in the commercialization of lithium-sulfur batteries, a separator based on boron nitride nanotubes has been developed. This separator prevents dendrite formation on the lithium metal anode, facilitates ion transfer, and alleviates shuttle effect at the cathode. Through experiments, it has been shown that this separator enables lithium-sulfur batteries to achieve high specific capacity and long-term stability.
Article
Environmental Sciences
Ye Eun Kim, Junwan Lim, Hyunjung Lee, Eunyoung Lee, Dong Yeong Kim, Young-Si Jun, Jong Hun Han, Sang Hyun Lee
Summary: In this study, we demonstrate the high efficiency of porous rGO-based composite spheres in water evaporation and organic pollutant adsorption. These spheres have a high light absorption capacity, which allows them to convert solar energy into heat and facilitate water evaporation. Additionally, the composite material can block UV radiation, preventing the transformation of water pollutants into harmful components.
Article
Environmental Sciences
Byeong-Hyeon An, Tae-Gyu Lee, Tamal Tahsin Khan, Hye-Won Seo, Hyun Jin Hwang, Young -Si Jun
Summary: In this study, a simple and selective optical detection of high-concentrated Co2+ using a graphitic carbon nitride (g-CN)-based fluorescent chemosensor is reported. The fluorescent sensing performance of CNIs is evaluated through photoluminescence (PL) emission spectroscopy in a broad Co2+ concentration range. This study provides the design principle of the chemosensor suitable for the fast and accurate optical detection of Co2+ present in a broad concentration range for the hydrometallurgy of recycling waste LIBs.
Article
Chemistry, Multidisciplinary
Gazi A. K. M. Rafiqul Bari, Hui-Ju Kang, Tae-Gyu Lee, Hyun Jin Hwang, Byeong-Hyeon An, Hye-Won Seo, Chang Hyun Ko, Won Hi Hong, Young-Si Jun
Summary: A dual-templating strategy using molten salts and hydrogen-bonded triazine molecules has been developed to prepare high-performance porous carbon adsorbents for CO2 capture. This strategy allows for the control of pore structure and hetero-atom insertion, resulting in improved CO2 capture performance.
Article
Chemistry, Physical
Hui-Ju Kang, Jae-Woo Park, Hyun Jin Hwang, Heejin Kim, Kwang-Suk Jang, Xiulei Ji, Hae Jin Kim, Won Bin Im, Young-Si Jun
Summary: This study demonstrates the use of two-dimensional siloxene as an additive for sulfur cathodes in lithium-sulfur batteries, which improves energy density by generating a thiosulfate redox mediator and securing the intercalation pathway.