Review
Chemistry, Multidisciplinary
Na Chen, Hai-Chao Xu
Summary: Organic radicals, versatile synthetic intermediates with complementary reactivities to ionic species, have limited scope in electrochemically driven reactions; however, research activity in organic electrochemistry has significantly increased in recent years, with the development of methods for generating and utilizing organic radicals for synthesis through direct electrolysis, molecular electrocatalysis, or molecular electrophotocatalysis.
Article
Multidisciplinary Sciences
R. Gaikwad, P. R. Thangaraj, A. K. Sen
Summary: The study introduces a new method for fast measurement of H2O2 levels in blood using a microfluidic device, highlighting the significant impact of blood cells and soluble proteins on measurement accuracy. The new method enables reliable measurements with high sensitivity and rapid detection time.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Chang Su, Guoqiang Liu, Yixuan Zhang, Danlei Qiao
Summary: In this study, ultrasonic treatment and ethanol cleaning (UE treatment) were used to remove a small amount of electrochemically inert Na' ions from the surface lattice of NaCrO2, resulting in a modified material NaCrO2-UE with significantly improved electrochemical properties. At a rate of 10C, NaCrO2-UE exhibited an initial discharge capacity of 115.8 mAh/g, with a retention rate of 87.0% after 500 cycles. Moreover, it delivered a discharge capacity of 111.4 mAh/g at a higher rate of 40C. Additionally, the discharge voltage plateau of NaCrO2-UE reached 2.91 V, compared to the 2.78 V plateau of pristine NaCrO2.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Analytical
F. Huerta, C. Quijada, F. Montilla, E. Morallon
Summary: The redox transitions of PANI in acidic medium were monitored using cyclic voltammetry, in situ conductance, and in situ FTIR spectroscopy. The results suggest that the classical tetrameric model is not suitable to describe the actual structures of the polymer, and an octameric model with essential resonant structures was revisited for a more accurate prediction of IR intensity changes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Jiyeon Park, Bolam Kim, Dong Suk Han, Jonghun Lim, Hyunwoong Park
Summary: This study compares the dark catalytic activities of photo-charged TiO2/WO3 (TW) and TiO2/Al2O3/WO3 (TAW) membrane filters and identifies the reasons behind the differences in their catalytic performances. The results show that TAW significantly enhances the rate of Cr(VI) reduction, while inhibiting the rate of As(III) oxidation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Jahaun Azadmanesh, William E. Lutz, Leighton Coates, Kevin L. Weiss, Gloria E. O. Borgstahl
Summary: Human manganese superoxide dismutase is an important oxidoreductase found in the mitochondrial matrix, using concerted proton and electron transfers to eliminate O-2(center dot-). Neutron crystal structures of Mn3+SOD and Mn2+SOD provide insights into the protonation changes of key residues in the enzyme active site during the redox cycle, revealing a concerted proton and electron transfer mechanism.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Kyle M. Diederichsen, Stephen J. A. DeWitt, T. Alan Hatton
Summary: Electrochemically mediated CO2 separations have gained attention as a potential low-cost and low-energy carbon capture technology. A multitubular electrochemical separation cell, utilizing porous, tubular electrodes, has been developed to enhance performance and provide a vast design space. The continuous separation of CO2 from a gas mixture and its release in pure form has been demonstrated, highlighting the potential of this electrochemical approach.
ACS ES&T ENGINEERING
(2023)
Article
Environmental Sciences
Yi-Nan Liu, Yuan Min, Jie-Jie Chen, Feng Zhang, Dong-Feng Liu, Xian-Wei Liu, Tian Tian, Han-Qing Yu
Summary: This study explored the complexation of Cd(II) by a model EAB, Shewanella oneidensis MR-1, under both reducing and oxidizing conditions using real-time surface plasmon resonance microscopic analysis. The results showed that the EAB strains incubated in a reducing environment had significantly higher Cd(II) complexation capacity and rate. Further experiments revealed that the reduced state of c-type cytochromes endowed the EAB strains with a more negative zeta potential on their surface and further promoted their binding with Cd(II). These findings enhance our understanding of the complexation of heavy metals by EAB and highlight their potential value in the remediation of metal-contaminated environments.
Article
Nanoscience & Nanotechnology
Aya Yoshimura, Keisuke Hemmi, Hayato Moriwaki, Ryo Sakakibara, Hitoshi Kimura, Yuto Aso, Naoya Kinoshita, Rie Suizu, Takashi Shirahata, Masaru Yao, Hideki Yorimitsu, Kunio Awaga, Yohji Misaki
Summary: In this study, tetrathiafulvalene and its analogues were successfully synthesized and used as long-cycle-life electrodes for lithium-ion batteries, showing excellent performance. The research opens up new avenues for exploring the application of organic materials in rechargeable batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
J. Gonzalez, E. Laborda, A. Molina
Summary: Analytical theoretical solutions are presented for electron-coupled ion transfers in cyclic voltammetry with thick film-modified electrodes, covering a wide range of situations including immobilized or freely diffusing redox transducers, and simple or complicated ion transfers by homogeneous chemical processes. A comprehensive study of each case defines key parameters and guidelines for analyzing the electrochemical signal of the system.
Article
Chemistry, Physical
Xiaolu Yu, Sicen Yu, Zhenzhen Yang, Hongpeng Gao, Panpan Xu, Guorui Cai, Satchit Rose, Christopher Brooks, Ping Liu, Zheng Chen
Summary: This study demonstrates a low-temperature hydrothermal relithiation process for efficient and safe recycling of spent NCM cathode materials, achieving complete recovery of composition, crystal structure, and electrochemical performance. Moreover, the total energy consumption and greenhouse gas emission in battery recycling are reduced, making it a more sustainable approach.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Weixin Song, Miguel A. Perez-Osorio, John-Joseph Marie, Emanuela Liberti, Xiaonan Luo, Colum O'Leary, Robert A. House, Peter G. Bruce, Peter D. Nellist
Summary: Li-rich metal oxides undergo distinct oxygen redox processes in the bulk and surface during charge and discharge cycles, as observed through oxygen shift measurements. The recovery of oxygen shift after discharge is incomplete in the bulk but occurs close to the surface, accompanied by a phase change. The altered oxygen sublattice potentially explains the voltage profile changes in subsequent cycles.
Article
Materials Science, Multidisciplinary
Christina Cong, Jaehwan Kim, Cara N. Gannett, Hector D. Abruna, Phillip J. Milner
Summary: Strategies for the sustainable synthesis of redox-active organic polymers, specifically benzils, are demonstrated by the unexpected polymerization of simple dialdehyde monomers using cyanide catalysts. The resulting insoluble benzil-linked polymers exhibit high theoretical capacities and fast charge/discharge rates. Mechanistic studies reveal that the insolubility of the benzil-linked polymers protects them from subsequent cyanolysis. This method provides a sustainable approach for the synthesis of highly tunable and redox-active organic materials.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Tristram Jenkins, Jose A. Alarco, Bruce Cowie, Ian D. R. Mackinnon
Summary: Alkali vanadium (III) phosphates show promise as positive electrode materials for Li-, Na-, and K-ion batteries. The reversible redox mechanism of Li3V2(PO4)3 and Na3V2(PO4)3 cathodes during charge/discharge vs. Li+/Li0 has been directly observed using Soft X-ray Absorption Spectroscopy. Surface Li+ insertion is observed for both cathodes after exposure to Li+ electrolyte. The observations provide further understanding of atomic and electronic structure changes and charge-discharge mechanisms of high voltage cathode materials for Li-ion battery applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Leh-Ping Chang, Jian-Jie Wang, Fan-Yi Ouyang
Summary: This study focuses on introducing high-density nanotwinned structure into Ag films with strong (111) surface orientation. Different substrate biases were applied during the deposition process to optimize the nanostructure and properties of the films. By increasing the applied substrate bias, the formation of undesirable transition region can be suppressed. The nanotwinned (111) Ag film with moderate substrate bias shows low resistivity and high hardness.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Shu Chen, Lin Yang, Jing Zhang, Yi Yuan, Xiandui Dong, Peng Wang
Article
Chemistry, Multidisciplinary
Yingying Fan, Dandan Wang, Dongxue Han, Yingming Ma, Shuang Ni, Zhonghui Sun, Xiandui Dong, Li Niu
Article
Chemistry, Physical
Yang Li, Junting Wang, Yi Yuan, Min Zhang, Xiandui Dong, Peng Wang
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2017)
Article
Materials Science, Multidisciplinary
Jiao Liu, Jicun Huo, Min Zhang, Xiandui Dong
Article
Chemistry, Analytical
Shiwei Liu, Tongshun Wu, Fenghua Li, Qixian Zhang, Xiandui Dong, Li Niu
ANALYTICAL METHODS
(2018)
Article
Chemistry, Multidisciplinary
Yanfei Mu, Guangxing Dong, Xiandui Dong, Min Zhang
Article
Biochemistry & Molecular Biology
Chunxian Liao, Lijie Zhong, Yitian Tang, Zhonghui Sun, Kanglong Lin, Longbin Xu, Yan Lyu, Dequan He, Ying He, Yingming Ma, Yu Bao, Shiyu Gan, Li Niu
Summary: This study compared the performance of ISM-free Ag/AgCl electrode with ISM-based SC-ISE, revealing that the former has better selectivity for organic chloride ionophores and overall performance. Additionally, Ag/AgX electrodes can also be applied for sensing single and multi-valent anions.
Review
Biochemistry & Molecular Biology
Yitian Tang, Lijie Zhong, Wei Wang, Ying He, Tingting Han, Longbin Xu, Xiaocheng Mo, Zhenbang Liu, Yingming Ma, Yu Bao, Shiyu Gan, Li Niu
Summary: Wearable sensors monitor biochemical markers in biological fluids to reflect real-time physiological information and health status. Flexible electrochemical pH sensors play a significant role in health, and the properties of pH-sensitive materials greatly affect their performance and applications.
Article
Biochemistry & Molecular Biology
Yirong Zhang, Yitian Tang, Rongfeng Liang, Lijie Zhong, Jiexian Xu, Huici Lu, Xiaofeng Xu, Tingting Han, Yu Bao, Yingming Ma, Shiyu Gan, Li Niu
Summary: Solid-contact ion-selective electrodes (SC-ISEs) are important for ion detection, and carbon-based materials can improve the stability of the electrodes. The study found that nitrogen-doped mesoporous carbon (NMC) has the highest electrical double-layer capacitance, and the interfacial capacitance of carbon-based SC-ISEs can be further improved through mesoporous and N-doping engineering.
Article
Chemistry, Physical
Dongyang Qu, Bolin Zhao, Zhongqian Song, Dandan Wang, Huijun Kong, Shiyu Gan, Yingming Ma, Xiandui Dong, Dongxue Han, Li Niu
Summary: High-yield N/O co-doped porous turbostratic carbon nanomeshes with large interlayer spacing and abundant edge defects were synthesized using a copolymerization and carbonization strategy. The optimized nanomesh showed remarkable electrochemical performance as an anode material in potassium-ion and lithium-ion batteries, with reversible ion insertion and extraction processes. The excellent performance was attributed to the synergistic contributions of defects and reactive sites induced by N/O co-doping.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Yang Li, Zaiwei Wang, Dan Ren, Yuhang Liu, Aibin Zheng, Shaik Mohammed Zakeeruddin, Xiandui Dong, Anders Hagfeldt, Michael Gratzel, Peng Wang
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Chemistry, Analytical
Shiwei Liu, Liang Liang, Qixian Zhang, Changpeng Liu, Wei Xing, Xiandui Dong
ANALYTICAL METHODS
(2019)
Article
Chemistry, Analytical
Liu Zhen-Bang, Ma Ying-Ming, Han Dong-Xue, Dong Xian-Dui, Niu Li, Bao Yu
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2018)
Article
Energy & Fuels
Jiao Liu, Yameng Ren, Min Zhang, Xiandui Dong
Article
Chemistry, Physical
Liu Jiao, Huo Jicun, Zhang Min, Dong Xiandui
ACTA PHYSICO-CHIMICA SINICA
(2018)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)