Review
Materials Science, Ceramics
Z. Nezamzadeh Ezhyeh, M. Khodaei, F. Torabi
Summary: Lithium-Ion Batteries (LIBs) are crucial for saving oil and reducing exhaust emissions in applications such as electric vehicles and electronic devices. Lithium titanate (LTO) is a promising anode material with reversible Li-ion extraction and low volume change during Li transmission. However, LTO has limitations that can be improved through doping. This report reviews the doping of LTO with various dopants and different fabrication methods.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Anchali Jain, Amrish K. Panwar, Pawan K. Tyagi
Summary: Cr-doped and undoped lithium zinc titanate (LZTO) was prepared using a high-temperature solid-state ball-milling method, and the effect of Cr doping was investigated. The results showed that Cr3+ doping did not cause changes in the lattice structure and could reduce particle size and agglomeration. The Cr-doped samples exhibited better electrochemical performance than the pristine LZTO, with Li2ZnCr0.3Ti2.7O8 showing the highest discharge capacity, better cyclability, and lower polarization. The electrochemical impedance spectroscopy revealed that Li2ZnCr0.3Ti2.7O8 had lower charge-transfer resistance and faster Li-ion diffusivity, making it suitable as an alternative anode for lithium-ion batteries.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Yuzhou Liu, Chao Wang, Chen Sun, Xing Li
Summary: In this study, Na2Li2Ti6O14 sub-micro-wires and Na2Li2Ti6O14@C sub-micro-wires as anode materials were synthesized and found to exhibit excellent electrochemical performance in cycling tests. The carbon-coated samples show promising potential as anode materials for lithium-ion batteries, providing a new modification strategy for the research of anode materials in lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Hee Jae Kim, Jae Hyeon Jo, Ji Ung Choi, Natalia Voronina, Docheon Ahn, Tae-Yeol Jeon, Hitoshi Yashiro, Yauhen Aniskevich, Genady Ragoisha, Eugene Streltsov, Seung-Taek Myung
Summary: Carbon-modified Li4Ti5O12 spinel successfully stores potassium and exhibits excellent electrode performance, including high initial charge capacity, cycling stability, and high-rate capability.
ENERGY STORAGE MATERIALS
(2021)
Article
Electrochemistry
Xinlong Li, Xinlin Huang, Yuanzhi Chen, Jie Mei, Wanjie Xu, Laisen Wang, Dong-Liang Peng
Summary: The study demonstrated the preparation of monodisperse spinel Li4Ti5O12 (LTO) particles coated with a carbon layer through a solid-phase sintering reaction, which can enhance the rate performances of batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Pilar Diaz-Carrasco, Alois Kuhn, Nieves Menendez, Flaviano Garcia-Alvarado
Summary: Ti/Fe substitution in ramsdellite LiTi2O4 has been studied, and the results showed that the substitution mechanism is more complex than predicted, involving the participation of Fe3+/Fe2+ and Ti4+/Ti3+. The LiFe0.125Ti1.875O4 material with low Ti/Fe substitution performed better than undoped LiTi2O4, and in the high voltage range, it outperformed higher Fe-substituted ramsdellites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Multidisciplinary
Alireza Fereydooni, Chenghao Yue, Yimin Chao
Summary: This review provides a brief history of Si-NPs' usage in LIBs and discusses strategies employed to overcome their drawbacks, aiming to inspire and offer valuable insights for future research endeavors.
Article
Chemistry, Multidisciplinary
Jongha Hwang, Mincheol Jung, Jin-Ju Park, Eun-Kyung Kim, Gunoh Lee, Kyung Jin Lee, Jae-Hak Choi, Woo-Jin Song
Summary: Silicon-based electrodes are considered promising anodes for high-energy-density lithium-ion batteries due to their advantages, but the large volume change and low electrical conductivity during charge-discharge process are critical issues. In this study, the researchers solved the problem of volume expansion by applying a carbon coating method using low-cost phenolic resin, resulting in high-performance lithium-ion batteries.
Article
Chemistry, Physical
Xin Zhang, Yuxuan Zhang, Ying Li, Xiaoming Wang, Xueqin Zhang
Summary: A novel dental restorative material with mineralization ability was fabricated using photopolymerization. The material, composed of calcium methacrylate (CMA) incorporated into the dental resin formulation, showed good biocompatibility and cell adhesion ability. It demonstrated the potential for immediate clinical use.
Article
Chemistry, Physical
Xiaohang Ma, Pengzhi Chen, Menfa Qian, Dan Wu, Jingwei Du, Xiaoyi Chen, Rongcheng Dai, Maolin Sha, Zhenfa Zi, Jianming Dai
Summary: Niobium molybdenum oxide Nb14Mo3O44 nanoparticles are synthesized by a convenient solvothermal method and explored as new anodes for lithium-ion batteries. Compared with agglomerated microparticles obtained by solid-state reaction, Nb14Mo3O44 nanoparticles demonstrate higher initial coulombic efficiency, better cycle property, and improved rate capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Sungjin Cho, Dong Yeon Kim, Jung-In Lee, Jisu Kang, Hyeongseok Lee, Gahyun Kim, Dong-Hwa Seo, Soojin Park
Summary: This study presents an anode-free Li metal battery with an ion-conductive layer coated Cu current collector, addressing the issues of electrolyte depletion and volume expansion, and demonstrates exceptional electrochemical performance.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Chunyue Li, Yuanhua Lin, Xing Li, Zhonghui Li, Pan Luo, Yifu Jin, Zishuo Li
Summary: In this study, Co-α-Fe2O3/Graphene composites with different Co-doping concentrations were prepared by the solvothermal method to improve the electrical conductivity of α-Fe2O3. Doping Co increased the interlayer spacing and diffusion channel of Li+ in α-Fe2O3, while reducing the grain size. The introduction of oxygen vacancies and graphene further enhanced the electrical properties and alleviated volume expansion. The Co-α-Fe2O3/Graphene composite exhibited excellent electrochemical performance as the anode material for lithium-ion batteries, with a reversible capacity of 886 mAh/g after 200 cycles at 1 C when the doping amount was 5%.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Electrochemistry
Chuanbao Wu, Yunwei Wang, Guangqiang Ma, Xingwen Zheng
Summary: The nanostructured Li4Ti5O12 anode materials prepared by the photo-assisted sol-gel route exhibit high specific capacity at high discharge rates and excellent cycling stability. The outstanding performance is mainly attributed to grain refinement induced by ultraviolet photo-irradiation.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Xinwang Cao, Chang Ma, Lei Luo, Lei Chen, Hui Cheng, Raphael Simha Orenstein, Xiangwu Zhang
Summary: The addition of nanofiber materials to Li-ion batteries has been a significant advancement, as it provides unique structural features and enhances their electrochemical performance. This article discusses recent advancements in nanofiber materials for Li-ion batteries, including the synthesis, structure, and properties of nanofiber cathodes, anodes, separators, and electrolytes, as well as their applications. The challenges and prospects of nanofiber materials in Li-ion battery applications are also outlined.
ADVANCED FIBER MATERIALS
(2023)
Article
Chemistry, Physical
Na Li, Qihua Zhou, Jing Lin, Yanzhen Lu, Zhiguo Hou, Yitai Qian
Summary: Highly-uniform MoSe2 nanoparticles were synthesized via a one-pot hydrothermal method with the addition of polyvinyl pyrrolidone (PVP) and subsequent calcination treatment. These nanoparticles exhibited enhanced cycle stability and rate performance as an anode material for both lithium and sodium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xuehe Jiang, J. Benedikt Mietner, Constantin Harder, Rajesh Komban, Shouzheng Chen, Christian Strelow, Uta Sazama, Michael Froeba, Christoph Gimmler, Peter Muller-Buschbaum, Stephan V. Roth, Julien R. G. Navarro
Summary: A cellulose nanofibril-based hybrid gel material was developed by grafting polymerized stearyl acrylate (PSA) and upconversion nanoparticles (UCNPs) onto cellulose nanofibrils (CNFs) via Cu-mediated radical polymerization (SET-LRP). The hybrid material (UCNP-PSA-CNF) showed efficient modification of the CNF with 1.8% UCNPs. The gel exhibited good viscoelasticity, shear-thinning behavior, and shape retention, making it suitable for 3D gel printing.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
Nadesh Fiuza-Maneiro, Kun Sun, Iago Lopez-Fernandez, Sergio Gomez-Grana, Peter Muller-Buschbaum, Lakshminarayana Polavarapu
Summary: Lead halide perovskite nanocrystals (LHP NCs) are semiconductor materials with exceptional optical and optoelectronic properties. The surface chemistry, including ligands and surface termination, plays a crucial role in determining the optical and optoelectronic performance as well as the colloidal stability of LHP NCs. Functionalization of the surface with desired molecules can induce new functionalities, such as photocatalysis and chirality. This review provides an atomic view of the surface chemistry of colloidal LHP NCs, including crystal termination, vacancies, and different types of capping ligands, and discusses the ligand-induced functionalities.
ACS ENERGY LETTERS
(2023)
Article
Energy & Fuels
Xinyu Jiang, Sebastian Grott, Volker Koerstgens, Kerstin S. Wienhold, Zerui Li, Jinsheng Zhang, Christopher R. Everett, Matthias Schwartzkopf, Stephan V. Roth, Peter Mueller-Buschbaum
Summary: Slot-die coating is a promising method to commercialize organic solar cells. In this study, the film formation kinetics of a nonfullerene active layer blend of PffBT4T-2OD and EH-IDTBR was investigated using in situ grazing-incidence small angle X-ray scattering and UV-vis spectroscopy. A mesoscale domain growth process with distinct molecular stacking and aggregation behavior was observed during solvent evaporation. The printed active layers exhibited specific crystallite structures dominated by PffBT4T-2OD and EH-IDTBR.
Article
Nanoscience & Nanotechnology
Kun Wang, Jiangwei Huo, Li Cao, Peihui Yang, Peter Muller-Buschbaum, Yu Tong, Hongqiang Wang
Summary: Researchers have developed a strategy to fabricate high-quality alpha-FAPbI3 perovskite films and inverted PSCs under open air conditions with a relative humidity of 60+/-10%. They incorporated phenylethylammonium iodide (PEAI) to inhibit the decomposition and phase transition of FAPbI3 and improve its crystallinity, resulting in enhanced power conversion efficiency and long-term stability of the PSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ying Li, Zhepu Shi, Bao Qiu, Jialiang Zhao, Xiao Li, Yibin Zhang, Tingting Li, Qingwen Gu, Jing Gao, Zhaoping Liu
Summary: To tackle the capacity fade and safety concerns associated with oxygen redox in Li-rich layered cathodes, an integrated strategy involving interlayer regulation and delocalization of Li2MnO3-like domain is proposed. The controllable interlayer through atomic layer deposition minimizes lattice mismatch and prevents structural degradation during cycling, while compositional control of the Li2MnO3-like domain inhibits oxygen release and enhances the thermal stability of the electrode. The optimized cathode material demonstrates a capacity retention of 94.0% after 200 cycles and a multilayer pouch cell exhibits an outstanding cycling performance with 80.4% capacity retention after 710 cycles, along with verified safety features.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Cristiane Henschel, Dirk Schanzenbach, Andre Laschewsky, Chia-Hsin Ko, Christine M. Papadakis, Peter Mueller-Buschbaum
Summary: Sets of nonionic polymers pNVIBAm and pNIPMAm with molar mass from 20,000 to 150,000 kg mol-1 are synthesized by radical polymerization, and their thermoresponsive and solvent-responsive behaviors in aqueous solution are studied. Both polymers exhibit a rare type II lower critical solution temperature (LCST), similar to well-studied pNIPAm. Additionally, both polymers display co-nonsolvency behavior in mixtures of water with various co-solvents, but the co-nonsolvency becomes less pronounced in the order pNIPAm > pNVIBAm > pNIPMAm. Notably, pNIPMAm does not exhibit co-nonsolvency in mixtures of water and N,N-dimethylformamide.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Hongye Dong, Guibin Shen, Yuqin Zou, Yiyi Li, Zhichao Lin, Qingbin Cai, Xiangning Xu, Qili Song, Hairui Duan, Peter Mueller-Buschbaum, Cheng Mu
Summary: In this study, engineered components of metformin halides were introduced into the bulk and surface of perovskite layers in perovskite solar cells (PSCs), leading to synergistic defect passivation. The bulk addition of metformin hydrochloride influenced the orientation distribution of perovskite crystals and contributed to better perovskite films, while the modification of metformin iodide treated residual defects on the surface of perovskite films. The synergistically passivated PSCs exhibited an improved power conversion efficiency (PCE) and excellent thermal and humidity stabilities.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Peixi Wang, Christina Geiger, Julija Reitenbach, Apostolos Vagias, Lucas P. Kreuzer, Suzhe Liang, Robert Cubitt, Viet Hildebrand, Andre Laschewsky, Christine M. Papadakis, Peter Mueller-Buschbaum
Summary: The KCl-modulated swelling behavior of double thermoresponsive diblock copolymer(DBC) thin films and their subsequent responsive behavior in a D2O atmosphere are investigated using spectral reflectance (SR), in situ time-of-flight neutron reflectometry (ToF-NR), and Fourier-transform infrared (FT-IR) spectroscopy. The addition of KCl to the DBC thin films increases their swelling ratio and D2O content during vapor treatment. The films further swell and reach a maximum thickness before contracting upon subsequent heating. Two separate volume phase transition temperatures (VPTTs) are observed, which correspond to a further swelling plateau and the start of contraction. KCl reduces the VPTTc of the PNIPMAM blocks and forms an enrichment layer in the film during heating.
Article
Nanoscience & Nanotechnology
John Holoubek, Haodong Liu, Qizhang Yan, Zhaohui Wu, Bao Qiu, Minghao Zhang, Sicen Yu, Shen Wang, Jianbin Zhou, Tod A. Pascal, Jian Luo, Zhaoping Liu, Ying Shirley Meng, Ping Liu
Summary: This study demonstrates the reversible performance of a localized-high-concentration electrolyte (LHCE) based on ether solvents for Li||LMR batteries, improving the cycling performance and cathode-electrolyte interphase chemistry.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Panpan Zhang, Xuan Zhang, Lucas P. P. Kreuzer, Dominik M. M. Schwaiger, Min Lu, Robert Cubitt, Qi Zhong, Peter Mueller-Buschbaum
Summary: The kinetics of UV radiation-induced collapse and recovery in thermally cycled and rehydrated double-responsive copolymer films were studied using in situ neutron reflectivity. The thermal treatment of the film above its transition temperature followed by rapid cooling induced rehydration of the collapsed film. The rehydration process consisted of D2O absorption, chain rearrangement, and film reswelling. UV irradiation-induced collapse and recovery processes were slower in films with thermal stimulus history, suggesting the importance of considering the thermal history in the design of sensors and detectors based on double-responsive copolymer films.
Article
Nanoscience & Nanotechnology
Marie Betker, Constantin Harder, Elisabeth Erbes, Julian Eliah Heger, Alexandros Efraim Alexakis, Benedikt Sochor, Qing Chen, Matthias Schwartzkopf, Volker Koerstgens, Peter Mueller-Buschbaum, Konrad Schneider, Simone Agnes Techert, L. Daniel Soderberg, Stephan V. Roth
Summary: In this study, researchers evaluate the suitability of two types of inks containing silver nanowires for the fabrication of cellulose-based silver nanowire electrodes. The results show that the ink containing cellulose nanofibrils has lower sheet resistance, lower surface roughness, shorter fabrication time, and better mechanical and long-term stability compared to the other type of ink. The mixed ink of silver nanowires and cellulose nanofibrils is found to be suitable for the fast fabrication of highly conductive organic nanoelectronics on an industrial scale.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Neng Hu, Bin Hong, Xuefeng Yan, Hao Wu, Qi Zhong, Dongming Qi, Weijia Wang, Lin Lei, Huiqing Fan, Peter Mueller-Buschbaum
Summary: Inspired by Chinese wood oil coating on umbrella, the study developed a hybrid hydrogel-based UV radiation monitor by coating an ionic polymer layer onto the hydrogels. The monitor can trace the solar UV radiation dose in water environments by monitoring the discoloration extent of dyed hybrid hydrogels. The hybrid hydrogels are synthesized by introducing g-C3N4 nanosheets into the hydrogels. The coated hybrid hydrogels show excellent resistance against dye leakage and are suitable for wearable devices to monitor skin health in aqueous environments under sunshine.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shaoan Zhang, Zhenzhang Li, Zaijin Fang, Bao Qiu, Janak L. L. Pathak, Kaniyarakkal Sharafudeen, S. Saravanakumar, Zhanjun Li, Gang Han, Yang Li
Summary: Recently, a modified metal halide perovskite has been designed to enhance the photoluminescence efficiency and stability under blue light excitation. This material has been successfully applied in laser-driven liquid crystal displays, demonstrating excellent color gamut, illuminance intensity, and energy consumption reduction, especially in large-screen outdoor displays.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Renjun Guo, Qiu Xiong, Aleksander Ulatowski, Saisai Li, Zijin Ding, Tianxiao Xiao, Suzhe Liang, Julian E. Heger, Tianfu Guan, Xinyu Jiang, Kun Sun, Lennart K. Reb, Manuel A. Reus, Andrei Chumakov, Matthias Schwartzkopf, Minjian Yuan, Yi Hou, Stephan V. Roth, Laura M. Herz, Peng Gao, Peter Mueller-Buschbaum
Summary: This study reveals the impact of trace water contamination in lead iodide (PbI2) on the replicability of high-performance perovskite solar cells (PSCs), as well as the significance of controlling water content in PbI2. The addition of even slight amounts of water accelerates the crystallization process in the perovskite layer, but it also leads to an imbalance in charge-carrier mobilities, resulting in decreased device performance. Anhydrous PbI2 promotes homogeneous nucleation and improves perovskite film growth.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tianfu Guan, Wei Chen, Haodong Tang, Dong Li, Xiao Wang, Christian L. Weindl, Yawen Wang, Zhiqiang Liang, Suzhe Liang, Tianxiao Xiao, Suo Tu, Stephan V. Roth, Lin Jiang, Peter Mueller-Buschbaum
Summary: Hybrid plasmonic nanostructures, which combine the properties of plasmonics and quantum dots, have attracted significant attention in the field of optoelectronic devices. This study presents a hybrid structure consisting of self-assembled gold nanospheres embedded in a solid matrix of PbS quantum dots. By analyzing the localization and spacing of the gold nanospheres within the hybrid structure using grazing-incidence small-angle X-ray scattering, the impact of interface charge carrier dynamics on the performance of photodetectors is determined. This research provides insights into the performance improvement of optoelectronic devices from an architectural perspective.
