Article
Chemistry, Physical
Jun Zhang, Rusheng Fu, Yue Shi, Cancan Bian, Jingjing Ji, Liang Yun, Xufeng Zhou, Zhaoping Liu
Summary: Graphene as a functional additive in Li-ion batteries shows potential, but the stacking manner and mass loading need to be controlled within a certain range to prevent steric hindrance effects.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Zhihua Ma, Liujie Wang, Dandan Wang, Ruohan Huang, Cunjing Wang, Gairong Chen, Changqing Miao, Yingjie Peng, Aoqi Li, Yu Miao
Summary: In this study, a unique Si@graphene layer structure (p-Si@GN) was fabricated to improve the cycling performance of silicon anodes. The layered p-Si@GN composite exhibited high Li+ storage capacity, outstanding electron conductivity, and excellent structural stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Raymond Zhang, Timofey Averianov, Ryan Andris, Michael J. Zachman, Ekaterina Pomerantseva
Summary: This study presents the first aqueous exfoliation of chemically prelithiated bilayered vanadium oxide and the vacuum drying process at 200 degrees Celsius provides improved ion storage capacity and electrochemical stability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yin Zhang, Yangqin Cheng, Jinhua Song, Yanjun Zhang, Qian Shi, Jingxiao Wang, Fanghua Tian, Shuang Yuan, Zhou Su, Chao Zhou, Yang Wang, Sen Yang
Summary: The paper presents a cost-effective method for synthesizing Si and graphene composites through ball-milling, demonstrating their outstanding performance in lithium-ion batteries and potential for large-scale production in the future.
Article
Nanoscience & Nanotechnology
Pei-En Weng, Alexander Gooyandeh, Muhammad Tariq, Tianyu Li, Avinash Godara, Jocelyn Valenzuela, Steven Mancini, Samuel Ming Tuk Yeung, Ruth Sosa, David R. Wagner, Rohan Dhall, Nicole Adelstein, Katy Kao, Dahyun Oh
Summary: This study reports the first biodirected synthesis of carbonaceous layers on anodes to prevent direct contact of water molecules with anode particles. Utilizing high-aspect ratio microbes as precursors, the conductivity is enhanced and the electrolysis of WIS electrolytes is reduced.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Naga Venkateswara Rao Nulakani, T. J. Dhilip Kumar
Summary: In this study, graphene and borophene monolayers were successfully stitched together to form lateral heterostructures using experimental synthesis. The resulting heterostructures showed dynamic and thermal stability, as well as anisotropic mechanical properties. Electronic structure calculations revealed their classification as either semimetals or metals, and their conductivity depended on the width of the graphene and borophene chains. Additionally, these heterostructures exhibited unique electronic features, such as massless Dirac fermions and anisotropic high hole and electron mobilities. Moreover, their potential application as anode materials in lithium-ion rechargeable batteries was investigated, showing promising results with optimal adsorption energies, low diffusion barriers, enhanced specific storage capacity, and average open circuit voltage.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Ming-Kuen Huang, Jan Luxa, Mahendran Mathankumar, Zhi-Ting Huang, Chih-Han Wang, Jeng-Kuei Chang, Zdenek Sofer, Jeng-Yu Lin
Summary: Layered GeSe/thermally-reduced graphene oxide (TRG) composites show improved electrochemical performance and cycling stability in Li-ion batteries, due to the role of the TRG matrix.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Zhihua Ma, Cunjing Wang, Aoqi Li, Liujie Wang, Gairong Chen, Yu Miao, Tan Dang, Yunfei Wang, Enyu Chang, Tianchao Fan
Summary: Si/carbon composites with intimate contact interface and abundant void space are effective for enhancing cyclability and rate performance of rechargeable Li-ion batteries. Inspired by the structure of fishnet, a binder-free and self-standing Si@porous-graphene (Si@PGN(60)) composite is fabricated, exhibiting improved Si/graphene contact interface and abundant void space for fast ion transmission. The resultant Si@PGN60 anode shows remarkably improved capacity reaching 1839.9 mA h g(-1) at 300 mA g(-1), and excellent cycling performance (734 mA h g(-1) at a high current density of 3000 mA g(-1)).
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Xi Chen, Laura C. Loaiza, Laure Monconduit, Vincent Seznec
Summary: The 2D Si-Ge alloy materials, known as siliganes, have been developed for use as anodes in Li-ion batteries, offering reasonable cost and promising electrochemical performance. Among them, the siligane_Si0.9Ge0.1 showed the best performance, with a reversible capacity of 1325 mA h g-1, high capacity retention, and coulombic efficiency at a current density of 0.05 A g-1 after 10 cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Ceramics
Tongyao Zhao, Zhenjing Jiang, Yanfei Zhang, Jinjun Ren, Yuanzheng Yue
Summary: Understanding the role of network formers is crucial for developing novel glass anode materials for Li-ion batteries. This study investigates the effect of substituting P2O5 for TeO2 in V2O5-TeO2 glass composition on the microstructure and performances of LIB anodes. Advanced spectroscopy techniques reveal the irreversible disassociation and formation of nanoclusters during Li+ ion insertion/extraction. The substitution enhances the capacity of the glass anodes by promoting Li2Te formation and V5+ reduction to V4+.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Review
Chemistry, Physical
Lijing Xie, Cheng Tang, Zhihong Bi, Mingxin Song, Yafeng Fan, Chong Yan, Xiaoming Li, Fangyuan Su, Qiang Zhang, Chengmeng Chen
Summary: Hard carbons, with their enriched microcrystalline structure, have attracted attention as a promising anode material for high-energy LIBs, but face challenges such as low initial efficiency and capacity issues. Current research efforts are focused on addressing these challenges to enable practical application in next-generation batteries.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Guolang Zhou, Wenhao Ding, Yu Guan, Tianshi Wang, Cheng Liu, Lili Zhang, Jingzhou Yin, Yongsheng Fu
Summary: This review summarizes the research progress of NiO-based nanomaterials in rechargeable lithium-ion batteries (LIBs). The electrochemical characteristics highly depend on the synthesis method, morphology, etc., and NiO-based composites often show higher capacity and cycle stability compared to pure NiO. Future research should address the challenges of NiO-based anodes.
Article
Materials Science, Ceramics
Nakwon Kim, Wooyoung Lee, Joonsoo Kim, Daeil Kim, Boyun Jang
Summary: Introducing a new concept of passive prelithiation to SiOx nanoparticles by investigating their nanostructures and electrochemical properties. The incorporation of Li into SiOx nanoparticles during synthesis results in larger SILIO nanoparticles with different nanostructures. SILIO nanoparticles exhibit enhanced electrochemical properties due to their unique nanostructures with various phase distributions. The stability of SILIO in the air is evaluated to ensure the absence of unstable phases such as Li2Ox (x = 0-2) in SILIO. Based on the findings, a new nanostructure model composed of crystalline Si, amorphous SiOx, and lithium silicate is suggested.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Energy & Fuels
Young-Han Lee, In-Su Hwang, Jeong-Hee Choi, Cheol-Min Park
Summary: The electrochemical Li/Na/K-ion reaction pathways in Ga for high-performance Ga anodes in alkali-ion batteries are thoroughly elucidated using ex situ analytical tools. Ga exhibits a high Li-ion storage reaction, forming Li2Ga, but poor Na- and K-ion storage reactions, forming NaGa4 and K3Ga13, respectively. An amorphous Ga composite (Ga/C) is fabricated, showing high reversible capacity, long-term Li-ion storage stability, and high rate capability. Three-step confinement of amorphous Ga in the composite during cycling is demonstrated as an enhancement mechanism for high-performance Ga/C anodes for LIBs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jia Liu, Wei Sun, Yuzhu Ran, Shuyu Zhou, Linfeng Zhang, Aimin Wu, Hao Huang, Man Yao
Summary: The study verifies the lithiation process of Sn4P3 as an anode material for Li-ion batteries through experimental and computational analysis, showing its excellent cycling stability and progressive lithiation mechanism.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Rusnang Syamsul Adha, Thanh-Tin Nguyen, Chulmin Lee, In S. Kim
Summary: The study investigates configurations to reduce fouling in seawater reverse osmosis systems, which can improve permeate recovery and decrease unit water cost.
Article
Engineering, Chemical
Yesol Kang, Jaewon Jang, Yunho Lee, In S. Kim
Summary: In this study, a novel thin-film composite loose nanofiltration membrane was successfully fabricated with the addition of magnetite-decorated graphene oxide particles to improve salt permeation and dye rejection, while also providing excellent anti-fouling properties. This method shows great potential for the development of innovative saline wastewater treatment membranes.
Article
Engineering, Chemical
Chulmin Lee, In S. Kim
Summary: This study experimentally investigated the variation of osmotic membrane performance under different compression ratios and found that the performance of commercial osmotic membrane did not significantly decrease at 30-40% compression ratio, with potential savings in module packing density. The findings and methods will facilitate the structural optimization of ODMP membrane modules.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Hasan Fareed, Ghulam Hussain Qasim, Jaewon Jang, Woojin Lee, Seunghee Han, In S. Kim
Summary: In this study, the PV performance of PAN-based mixed matrix membranes was improved by adding kaolin, resulting in increased hydrophilicity and water sorption capacity. The addition of 2% kaolin enhanced membrane properties and led to outstanding permeation fluxes and salt rejection rates under different salt concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jaewon Jang, Yesol Kang, Kyunghoon Jang, Suhun Kim, Sang-Soo Chee, In S. Kim
Summary: In a situation of generating large amounts of industrial wastewater worldwide, developing efficient technology to remove various types of heavy metal ions from wastewater is crucial. This study demonstrates the use of a functionalized Ti3C2TX-EDA membrane as the active layer of a nanofiltration membrane, which shows excellent rejection against six types of heavy metal ions and exhibits high pure water permeance and continuous nanofiltration performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Jaewon Jang, Yesol Kang, Kihyeun Kim, Suhun Kim, Myungwoo Son, Sang-Soo Chee, In S. Kim
Summary: In the face of limitations in previous renewable energy systems, salinity gradient power (SGP) can be a new alternative that is not affected by climate and time. This study proposes a cation exchange membrane (CEM) with engineering nanostructure and introduces a new material for the reverse electrodialysis (RED) system. The Nafion@MXene/Cellulose acetate (CA) composite CEM shows superior physical/electrochemical properties and higher power density in the RED system than other membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Hobin Jee, Jaewon Jang, Yesol Kang, Tasnim Eisa, Kyu-Jung Chae, In S. Kim, Euntae Yang
Summary: In this study, the use of divalent cation crosslinking was attempted to improve the resistance against swelling in partially reduced GO membranes. It was found that the crosslinked membranes demonstrated improved dye rejection efficiency and mechanical stability.
Article
Engineering, Chemical
Thanh-Tin Nguyen, Kyunghoon Jang, Namguk Her, Chang Seong Kim, Soo Wan Kim, In S. Kim
Summary: Developing a hemodialysis membrane that effectively removes both small-sized toxins and middle molecules is vital. This study successfully fabricated novel hemodialysis membranes with different inner diameters, demonstrating superior removal efficiency for both small molecules and middle molecules. The spinning conditions had a significant impact on the membrane properties, affecting the clearance of uremic toxins and protein loss/leaking. Overall, the study proposes a promising membrane for hemodialysis application that achieves increased removal of middle molecules while minimizing protein loss and leakage.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Suhun Kim, Abayomi Babatunde Alayande, Tasnim Eisa, Jaewon Jang, Yesol Kang, Euntae Yang, Moon-Hyun Hwang, In S. S. Kim, Kyu-Jung Chae
Summary: In this study, a cation exchange membrane (CEM) was successfully fabricated by filling the pores of electrospun graphene oxide/polyethersulfone (GO/PES) nanofibers with a Nafion ionomer. The resulting 1% GO/PES CEM showed improved hydrophilicity, structural morphology, and mechanical properties. Compared to a Nafion membrane of the same thickness, the GO/PES CEM exhibited higher permselectivity, toughness, and lower areal resistance, indicating its potential application in electrochemical membrane-based systems.