Article
Energy & Fuels
Sanchao Liu, Huihui He, Dongyun Zhang, Chengkang Chang
Summary: Cr-doped LiCoMn1-xCrxO₄ materials were synthesized at 750 degrees C, which increased the phase purity and stability of the cathode material, leading to improved electrochemical performance such as higher specific capacity, enhanced capacity retention, and promoted rate performance. The presence of Cr in the lattice structure also contributed to the increase in lithium ion diffusion coefficient.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Meng Wang, Yongqiang Han, Mo Chu, Lin Chen, Meng Liu, Yijie Gu
Summary: The effects of cerium doping and the formation of layered-spinel hetero-structure on the electrochemical properties of lithium-rich cathode material were studied. Cerium doping and formation of spinel phase facilitated lithium ion diffusion and inhibited structural collapse during cycling, leading to improved cycling stability and rate capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jianyuan Wu, Cho-Jen Tsai
Summary: In this study, the effects of Zn-doping on the material structure and electrochemical properties of LiCoPO4 (LCP) were explored, revealing an unreported intermediate phase Li1/2Co1-nZnnPO4 and proposing two conjectured configurations. It was found that the redox potential and conductivity of Zn-doped LCP increase with doping concentration, leading to improved rate capability, cycle life, and energy efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Chunze Ma, Yuehua Wen, Qian Qiao, Pan He, Shuqing Ren, Meng Li, Pengcheng Zhao, Jingyi Qiu, Guangshi Tang
Summary: The SiO2 modification of the LNMO cathode material improved the cycling performance and rate capability of the battery.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Sung-Beom Kim, Hyeona Kim, Deok-Hye Park, Ji-Hwan Kim, Jae-Hoon Shin, Jae-Sung Jang, Sang-Hyun Moon, Jin-Hyuk Choi, Kyung-Won Park
Summary: Ni-rich cathode materials doped with varying amounts of F using a solid-state reaction method show improved cycling performance due to strong bonding between transition metals and F, as well as enhanced Li+ ion transport behavior. However, when the F doping level exceeds the optimal amount, Li/Ni antisite defects cause deteriorated Li+ ion transport, leading to decreased performance in lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Shiqi Guan, Zhihai Hu, Yan Dong, Qing Chang, Songdong Yuan, Jian Xiong, Guodong Jiang
Summary: By utilizing diethylene glycol as a solvent and manganese salts as doping sources, manganese doping and morphology control of olivine LiFePO(4) cathode were achieved through a simple solvothermal approach, resulting in improved lithium-ion intercalation/extraction kinetics and diffusion rate, leading to higher capacity, excellent rate capability, and satisfactory cyclability of LiFePO(4).
Article
Nanoscience & Nanotechnology
Binbin Chu, Longzhen You, Guangxin Li, Tao Huang, Aishui Yu
Summary: This study focuses on enhancing the thermal stability and electrochemical performance of LiNi0.6Co0.2Mn0.2O2 (NCM622) through W-doping. Experimental and theoretical calculations show that W-doping is most favorable at Co sites, helping to suppress oxygen release and improve structural stability. In addition, W-doping reduces the energy barrier for Li+ migration and enhances lithium ion diffusion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Kuanyou Tuo, Liping Mao, Hao Ding, Hong Dong, Ningshuang Zhang, Xiaolan Fu, Jin Huang, Wenbiao Liang, Shiyou Li, Chunlei Li
Summary: In this study, a boron/phosphorus dual-doped carbon coating was used to fabricate a LiFe0.8Mn0.2PO4 composite, which showed superior rate performance and low-temperature performance. The boron-doped coating provided extra hole carriers, while phosphorus doping offered abundant electron carriers, improving the material's conductivity. Phosphorus also acted as a bridge to tightly coat the carbon layer on the material surface.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Wenqin Ling, Zhengguang Zou, Shuchao Zhang, Xiaoxiao Peng, Shiying Luo, Xin Tang, Jing Geng
Summary: Heteroatom doping is a common modification method for lithium-ion battery electrodes, and it can improve the electrochemical performance of materials. In this study, CO2-modified VO2(B) nanorods were synthesized, resulting in a CO2-VO2 electrode with high rate capacity and capacity retention. The role of CO2 small molecules as a pillar in the interlayer of VO2(B) and the weak electrostatic attraction between OCO2 and Li+ contribute to the stability and diffusion of lithium ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yu Chen, Guobiao Su, Xu Cheng, Tingting Du, Yu Han, Wenjiang Qiang, Bingxin Huang
Summary: Sodium-ion batteries have great potential in grid energy storage due to abundant sodium resources. The electrochemical performances are mainly determined by cathode materials, with P2-Na2/3Ni1/3Mn2/3O2 showing high capacity and stability when using Na2CO3 as Na source. Doping with Li and Mg can significantly improve cycle stability, but initial discharge capacity is reduced.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Yongjiang Sun, Zhedong Liu, Xiaochun Chen, Xiaoping Yang, Fuwei Xiang, Wen Lu
Summary: A modified lithium nickel cobalt manganese oxide cathode material with superior environmental, thermal stabilities, and electrochemical performances has been successfully developed by an in-situ co-modification approach without the need for additional steps and reagents. The new method exhibits excellent performance in terms of high discharge capacity, rate capability, and long cycle life.
ELECTROCHIMICA ACTA
(2021)
Article
Nanoscience & Nanotechnology
Lenin W. Kum, Ashish Gogia, Nick Vallo, Deependra Kumar Singh, Jitendra Kumar
Summary: Lithium-ion batteries (LIBs) are widely used in modern electronics and electric vehicles due to their high energy and power densities, cycle-life, and safety. This study presents a simple method to improve the high-voltage charge capability of LIBs by applying an artificial cathode-electrolyte interface (Li+-ACEI) on the state-of-the-art cathode, LiCoO2 (LCO). The application of Li+-ACEI using a superionic ceramic Li+ ion conductor, lithium aluminum germanium phosphate (LAGP), results in reduced charge-transfer resistance, higher discharge capacity, higher Coulombic efficiency, and higher rate capability of the LCO cathodes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yang Chen, Shujian Liu, Shaokai Cheng, Shuyu Gao, Jingchao Chai, Qiuyue Jiang, Zhihong Liu, Xueqing Liu, Jiyan Liu, Ming Xie, Wubin Dai
Summary: Polyacrylonitrile (PAN) binder shows excellent performance in high-voltage LiCoO2 (HV-LCO) electrode, with high cycling stability and rate capability, and high tolerance to moisture. Furthermore, PAN binder suppresses the decomposition of liquid electrolyte by forming uniform coating on the surface of LiCoO2 and acting as an artificial cathode-electrolyte interphase layer.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Tianchi Chen, Fangchang Lin, Hongming Wu, Dengfeng Zhou, Jiling Song, Jianbing Guo
Summary: The LiNi0.5-xZnxMn1.48Y0.02O4 (x = 0.01, 0.03, 0.05) series were prepared via a sol-gel method to improve the electrochemical performance of the LiNi0.5Mn1.5O4 (LNMO) sample. The Zn-Y co-doping led to increased lattice parameters, morphological evolution, decreased Mn3+ content, and better electrochemical properties compared to the pristine LNMO. Among the samples, LiNi0.47Zn0.03Mn1.48Y0.02O4 (0.03ZnY) showed optimal electrochemical properties at room temperature and elevated temperature, with a higher discharge capacity and capacity retention than the pristine sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jiandong Zhang, Fuzhong Wu, Xinyi Dai, Yi Mai, Yijing Gu
Summary: In this study, a KMnO4-pretreated precursor was used to synthesize LiNi0.8Co0.1Mn0.1O2 cathode material with superior electrochemical performance. The pretreatment successfully achieved a MnO2 coating and Mn4+ doping, leading to improved cycling stability and capacity retention rates. The protective MnO2 coating inhibited interfacial reactions and the Mn4+ dopant improved crystal structure, contributing to the enhanced performance of the LiNi0.8Co0.1Mn0.1O2 cathode material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)