Review
Chemistry, Physical
Edgar Alan Cortes-Morales, Guadalupe Mendez-Montealvo, Gonzalo Velazquez
Summary: Understanding the interactions between polysaccharide/protein complexes and the influence of pH on structural modifications during complexation process is essential for designing efficient encapsulation systems.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Computer Science, Artificial Intelligence
Zhichen Li, Huaicheng Yan, Hao Zhang, Hak-Keung Lam, Meng Wang
Summary: This article presents an event-triggered stabilization method for interval type-2 (IT2) fuzzy systems, considering nonuniform sampling and incorporating a flexible regulation mechanism and time-dependent Lyapunov function to achieve a better balance between control performance and network resources.
IEEE TRANSACTIONS ON FUZZY SYSTEMS
(2021)
Article
Polymer Science
Yanwei Wang, Qiyuan Qiu, Arailym Yedilbayeva, Diana Kairula, Liang Dai
Summary: This study investigates the phase behavior of partially charged ion-containing polymers in polar solvents by developing a liquid-state theory with local short-range interactions. The effects of chain length, charge fraction, counterion valency, and specific short-range interactions on the phase behavior of polymer solutions are explored.
Article
Automation & Control Systems
Lijun Zhou, Lin Huang, Renwei Wei, Dongyang Wang
Summary: In this article, a novel lightning overvoltage protection scheme using magnetic rings (MRs) for transmission line systems (TLSs) is proposed and validated. The dynamic inductance of the lightning protection scheme using MRs is theoretically derived and verified experimentally. The effects of various factors on the protection performance are investigated, and the feasibility of the protection scheme is confirmed through field application.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Food Science & Technology
Ying Yue, Shujie Pang, Nana Li, Litao Tong, Lili Wang, Bei Fan, Chunhong Li, Fengzhong Wang, Liya Liu
Summary: This study found that in neutral aqueous systems, the addition of a certain amount of CMC to PPI caused serious phase separation; stable PPI solutions can be obtained by adding different amounts of CMC at pH 4.5 to 5.5 due to enhanced electrostatic repulsion and steric hindrance between the newly formed PPI-CMC biopolymers, as well as increased viscosity at pH 4.5 contributed to the higher stability of PPI in acidic aqueous systems.
Article
Nanoscience & Nanotechnology
Kyoung-Ryul Lee, Jaemin Seo, Sun Sang Kwon, Namyun Kim, Yi Jae Lee, Jeong Gon Son, Soo Hyun Lee
Summary: Graphene/polymer actuators were developed as transparent, flexible, and robust electrostatic speaker units using bilayer graphene and various polymer substrates. A resonant frequency shift was induced by a polymer substrate with micropatterns to enhance bass. The total sound pressure level (SPL) of the graphene/polymer actuator was measured and confirmed to be one-third of the octave band frequency. The study investigated the vibroacoustic characteristic changes in polymers with the same size and thickness by varying Young's modulus and density. The possibility of boosting bass was confirmed by inducing a resonant frequency shift and increasing the total SPL through micropatterns on the polymer substrate.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Hong Yang, Linbo Qing, Jia Yang, Xiaohai He
Summary: This paper proposes a novel Progressively Refined Scheme (PRS) for Distributed Video Coding (DVC) system in Wireless Video Sensor Networks (WVSNs). The PRS significantly improves the quality of Side Information (SI) and the reconstructed frames, leading to better Rate-Distortion (RD) performance. Experimental results show better performance compared to non-PRS systems.
SIGNAL IMAGE AND VIDEO PROCESSING
(2022)
Article
Robotics
Ryman Hashem, Shahab Kazemi, Martin Stommel, Leo K. Cheng, Weiliang Xu
Summary: This study introduces a novel ring-shaped soft pneumatic actuator (RiSPA) that mimics the peristaltic contractions of the stomach, showing potential practical applications. Through modeling, simulation, and experimental validation, the research demonstrates the wide range of applications of RiSPA in the field of biomimicry.
Review
Chemistry, Multidisciplinary
Guangfu Liao, Chunxue Li, Shi-Yong Liu, Baizeng Fang, Huaming Yang
Summary: This review highlights recent developments in Z-scheme photocatalysts, including fundamental principles, characterization methods, and applications. Significant improvement strategies are also discussed, and the future direction of this technology is predicted.
TRENDS IN CHEMISTRY
(2022)
Article
Economics
Peter H. Egger, Ingmar R. Prucha
Summary: This paper proposes a refinement of the generalized spatial two-stage and three-stage least squares estimators for simultaneous systems of equations with network interdependence. The refined weighting of the moment conditions underlying those estimators is suggested. Monte Carlo simulations demonstrate that the refined weighting potentially achieves significant reductions in the root mean-squared errors for the network parameters of interest.
EMPIRICAL ECONOMICS
(2023)
Article
Chemistry, Organic
Anastasiya Agafonova, Ilia A. Smetanin, Nikolai Rostovskii, Alexander F. Khlebnikov, Mikhail S. Novikov
Summary: This study presents a high-yield method for introducing a 2-pyridyl substituent in the C2 position of the three-membered ring of 2-bromo-2H-azirine-2-carboxylic acid derivatives through direct cross-coupling with 2-(trialkylstannyl)pyridines. The reaction is versatile, working well with different substituted 2-stannylpyridines and enabling the synthesis of 2-(thiazol-2-yl)-2H-azirines. DFT calculations suggest that the reaction proceeds through a sequence of S(N)2'-substitution, 1,4-stannyl shift, and [2,3]-sigmatropic shift of the pyridine ring.
Article
Chemistry, Applied
Evgeny V. Pospelov, Alexander V. Zhirov, Baglan Kamidolla, Alexey Yu. Sukhorukov
Summary: A protocol was developed for the synthesis of 2,3-dihydrofurans by reductive denitrogenation/ring contraction of cyclic nitronates. Cheap Raney nickel was used as both catalyst and stoichiometric agent, eliminating the need for high-pressure equipment. The products were obtained in high purity and often didn't require column chromatography. Studies on substrate scope, functional group tolerance, and mechanism were conducted. This approach provides a straightforward two-step access to densely substituted 2,3-dihydrofurans from nitrostyrenes and alkenes.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Biochemistry & Molecular Biology
Renate Griffith, John B. B. Bremner
Summary: The usefulness of Density Functional Theory (DFT) in evaluating transannular interactions in medium-sized ring systems has been demonstrated. The strength and type of these interactions depend on the nature of the atoms or groups across the ring. Different substituents on the interacting nitrogen also affect the interactions.
Article
Chemistry, Multidisciplinary
Shaotang Song, Lulu Wang, Jie Su, Zhen Xu, Chia-Hsiu Hsu, Chenqiang Hua, Pin Lyu, Jing Li, Xinnan Peng, Takahiro Kojima, Shunpei Nobusue, Mykola Telychko, Yi Zheng, Feng-Chuan Chuang, Hiroshi Sakaguchi, Ming Wah Wong, Jiong Lu
Summary: The discussion revolves around elucidating multiple non-covalent interactions that control the cohesive molecular clustering of well-designed precursor molecules and their chemical reactions using bond-resolved scanning probe microscopy and quantum chemistry calculations. The presence of two flexible bromo-triphenyl moieties leads to the assembly of distinct non-planar dimer and trimer clusters through manifold non-covalent interactions. The dynamic nature of weak interactions allows for transforming dimers into energetically more favourable trimers as molecular density increases, offering unprecedented opportunities for controlling the assembly of complex molecular architectures.
Article
Quantum Science & Technology
Fang-Fang Du, Yi-Ming Wu, Gang Fan
Summary: High-efficiency quantum information processing is achieved through logic qubit gates that require the fewest quantum resources and simplest operations. By using a reflection geometry of a single photon interacting with a three-level Λ-type atom-cavity system, the authors propose refined protocols for conducting controlled-not (CNOT), Fredkin, and Toffoli gates on hybrid systems. In these gates, the first control qubit is encoded on a flying photon, while the remaining qubits are encoded on atoms inside the optical cavity. These quantum gates can also be extended to the optimal synthesis of multi-qubit CNOT, Fredkin, and Toffoli gates without auxiliary photons or atoms using O(n) optical elements. Furthermore, the simplest single-qubit operations are applied only to the photon, making these logic gates experimentally feasible with current technology.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Chu Zheng, Yuezhi Mao, Jacek Kozuch, Austin Atsango, Zhe Ji, Thomas E. Markland, Steven G. Boxer
Summary: The electric field orientation can be extracted using a two-directional vibrational probe by exploiting the vibrational Stark effect. Solvents act similarly in stabilizing large bond dipoles at the expense of small ones, regardless of their polarities.
Article
Chemistry, Physical
Kenneth A. Jung, Thomas E. Markland
Summary: The third-order response is crucial for simulating and interpreting nonlinear spectroscopies. It can be formulated in terms of equilibrium symmetrized Kubo transformed correlation functions, which provide a practical method for calculating the atomistic dynamics of large condensed phase systems. This approach captures features such as anharmonically induced vertical splittings and peak shifts, and provides a physically transparent framework for understanding multidimensional spectroscopies.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Steven D. E. Fried, Chu Zheng, Yuezhi Mao, Thomas E. Markland, Steven G. Boxer
Summary: The ability to measure and control electric fields in enzymes and other complex reactive environments using the vibrational Stark effect has sparked interest in understanding the role of solute electronic structure in modifying the local solvent organization and electric field. This study demonstrates that amide-containing molecules experience larger frequency shifts in polar solvents compared to non-amide carbonyls due to the stronger p-pi conjugation and larger C=O bond dipole moments, resulting in larger solvent electric fields. The structural modifications of the solute can be used to tune both the solvent organization and electrostatic environment.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Physical
Filippo Bigi, Kevin K. Huguenin-Dumittan, Michele Ceriotti, David E. Manolopoulos
Summary: Machine learning frameworks based on correlations of interatomic positions rely on a discretized description of atomic density, and this study investigates a basis obtained from solving the Laplacian eigenvalue problem within a sphere around the atom of interest. The results show that this basis has controllable smoothness and performs better than some widely used basis sets, comparable to data-driven bases.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Austin O. Atsango, Andres Montoya-Castillo, Thomas E. Markland
Summary: Linear and nonlinear electronic spectra are important tools to study electronic energy absorption and transfer. A pure state Ehrenfest approach is introduced to accurately calculate these spectra for systems with many excited states and complex chemical environments. By representing the initial conditions as sums of pure states and unfolding multi-time correlation functions, significant improvements in accuracy can be achieved, especially when the initial condition involves coherence between excited states. This method is able to quantitatively capture exact linear, 2D electronic spectroscopy, and pump-probe spectra for various bath regimes.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Michael S. Chen, Joonho Lee, Hong-Zhou Ye, Timothy C. Berkelbach, David R. Reichman, Thomas E. Markland
Summary: This study utilizes recent advances in periodic electronic structure and a transfer learning scheme to obtain machine-learned potential energy surfaces for simulating liquid water. The results reveal the interplay of dynamical electron correlation and nuclear quantum effects across the entire temperature range of liquid water, and provide a strategy for efficiently exploring disordered condensed-phase systems using periodic correlated electronic structure methods.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Multidisciplinary Sciences
Peter Eastman, Pavan Kumar Behara, David L. Dotson, Raimondas Galvelis, John E. Herr, Josh T. Horton, Yuezhi Mao, John D. Chodera, Benjamin P. Pritchard, Yuanqing Wang, Gianni De Fabritiis, Thomas E. Markland
Summary: The SPICE dataset is a new quantum chemistry dataset for training potentials relevant to simulating drug-like small molecules interacting with proteins. It contains over 1.1 million conformations for a diverse set of small molecules, dimers, dipeptides, and solvated amino acids. It provides both forces and energies calculated at the omega B97M-D3(BJ)/def2-TZVPPD level of theory.
Article
Chemistry, Physical
Andres Montoya-Castillo, Thomas E. Markland
Summary: This paper investigates the dynamics of many-body fermionic systems and derives conditions under which fermionic operators can be replaced by bosonic operators while still capturing the correct dynamics of n-body operators. The analysis provides a guide on how to calculate single- and multi-time correlation functions essential in describing transport and spectroscopy using these simple maps. The applicability of Cartesian maps in capturing correct fermionic dynamics in select models of nanoscopic transport is rigorously analyzed and illustrated with exact simulations of the resonant level model.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Editorial Material
Chemistry, Physical
Michele Ceriotti, Lasse Jensen, David E. Manolopoulos, Todd Martinez, David R. Reichman, Francesco Sciortino, C. David Sherrill, Qiang Shi, Carlos Vega, Lai-Sheng Wang, Emily A. Weiss, Xiaoyang Zhu, Jenny Stein, Tianquan Lian
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Annina Z. Lieberherr, Seth T. E. Furniss, Joseph E. Lawrence, David E. Manolopoulos
Summary: This study evaluates the application of the cavity molecular dynamics method for calculating vibrational polariton spectra using liquid water as an example. The authors dispute the suggestion that nuclear quantum effects broaden polariton bands, instead finding anharmonic red shifts in polariton frequencies. They demonstrate that the simulated cavity spectra can be accurately reproduced using a harmonic model based on the cavity-free spectrum and cavity geometry. It is concluded that the transfer matrix method of applied optics, already widely used by experimentalists, provides comparable insight into the effect of vibrational strong coupling on absorption spectra as cavity molecular dynamics.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Kenneth A. Jung, Joseph Kelly, Thomas E. Markland
Summary: Electron transfer at electrode interfaces to molecules in solution or at the electrode surface is essential for technological processes, and it necessitates a comprehensive and accurate understanding of the fermionic states of the electrode and their coupling to the molecule being oxidized or reduced in electrochemical processes. A physically transparent quasiclassical scheme is proposed to treat these electron transfer processes in the presence of molecular vibrations, effectively mapping the fermionic variables. This approach accurately captures the electron transfer dynamics even in weak coupling regimes, providing a scalable strategy for treating electron transfer from electrode interfaces in condensed-phase molecular systems.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Austin O. Atsango, Tobias Morawietz, Ondrej Marsalek, Thomas E. Markland
Summary: The transport of excess protons and hydroxide ions in water is crucial for many important chemical and biological processes. Traditional simulation methods are prohibitively expensive for accurately modeling the associated transport mechanisms. In this study, machine-learned potentials (MLPs) are developed to simulate the transport of excess protons and hydroxide ions at a fraction of the cost of traditional methods, while still reproducing the trends observed in ab initio simulations. These simulations provide insights into the role of hypercoordination in the transport mechanism of hydroxide ions and support the asymmetry in diffusion between excess protons and hydroxide ions.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Michael S. Chen, Yuezhi Mao, Andrew Snider, Prachi Gupta, Andres Montoya-Castillo, Tim J. Zuehlsdorff, Christine M. Isborn, Thomas E. Markland
Summary: Hydrogen bonding interactions between chromophores in chemical and biological environments play a crucial role in their electronic absorption and relaxation processes, as evident in their linear and multidimensional optical spectra. However, simulating the large number of atoms in the condensed phase has traditionally limited the use of high-level excited-state electronic structure methods. Utilizing transfer learning, this study demonstrates the construction of machine-learned models to accurately predict the high-level excitation energies of a chromophore in solution using only 400 high-level calculations. Furthermore, by effectively treating the electronic excitations of the green fluorescent protein chromophore in water with EOM-CCSD embedded in a DFT description of the solvent, the optical spectrum is correctly captured, attributing the improvement to the accurate treatment of the coupling of the electronic transition to electric fields, resulting in a stronger response upon hydrogen bonding between the chromophore and water.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Meeting Abstract
Biophysics
Steven D. E. Fried, Chu Zheng, Yuezhi Mao, Thomas E. Markland, Steven G. Boxer
BIOPHYSICAL JOURNAL
(2022)
Meeting Abstract
Biophysics
Chu Zheng, Yuezhi Mao, Jacek A. Kozuch, Austin O. Atsango, Zhe Ji, Thomas E. Markland, Steven G. Boxer
BIOPHYSICAL JOURNAL
(2022)
Correction
Chemistry, Physical
Chen Luo, Yan Shao, Hua Yu, Hong-zhi Ma, Yu-hao Zhang, Long Gu, Bo Yin, Ming-bo Yang
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Stefano Borocci, Armando Camerlingo, Felice Grandinetti, Maria Rutigliano, Nico Sanna
Summary: The complexes of He, Ne, Ar, Kr, and Xe with B3N3H6 were investigated using MP2, CCSD(T), and SAPT ab initio methods. The complexes can be described as mono-, di-, and tri-coordinated to the N atoms, with stability following the order N-mono < N-di < N-tri. The interactions are dominated by dispersion and the binding energies are within the range of 1 or 2 kcal mol(-1). The results were compared with a recent DFT study on larger BN sheets complexes [Phys. Chem. Chem. Phys. 24 (2022) 2554-2566.].
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
V. Nagarajan, R. Bhuvaneswari, R. Chandiramouli
Summary: In this study, stable phosphoborane was used as a sensor to detect isobutane and n-propane in Liquefied Petroleum Gas (LPG). Phosphoborane demonstrated structural stability and semiconducting nature, and exhibited promising adsorption properties for the LPG molecules.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xiaoxi Xu, Zijiang Yang, Bayaer Buren, Maodu Chen
Summary: In this study, the time-dependent wave packet method was used to investigate the reaction channels and mechanisms of Ca+ + HD. The results show that the CaH+ + D reaction channel plays a primary role, which is consistent with experimental results. Complex forming and direct-abstraction reaction mechanisms exist in this reaction process.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: A free-standing silicon-carbon nanofiber composite film was synthesized and investigated for supercapacitor applications. It exhibited high specific capacitance, energy density, and power density. After 5000 cycles, the film showed excellent specific capacitance retention and Coulombic efficiency.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xinyu Zhang, Haosong Li, Xiaoyu Cao, Jing Gao, Yong Wei, Jianzhuo Zhu
Summary: The evaporation behavior of nanosized water aggregations on two-dimensional electroneutral solid surfaces with different surface polar unit densities was investigated. The results showed that the evaporation rate changes non-monotonically with the surface polar unit density, and the minimum evaporation rate is obtained when the surface has a modest surface polar unit ratio of 66.7%.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Yanyan Xu, Rui Dai, Xiaojie Wang, Zhijun Qiao, Haowei Wen, Dianbo Ruan, Yuzuo Wang
Summary: This article presents an innovative solvothermal sodium insertion method for synthesizing Triphylite-NaFePO4, which demonstrates optimal electrochemical performance in sodium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Meiyi Jiang, Kun Yang, Yancheng Liu, Li Yao
Summary: The geometric structure and electronic properties of transition metal M (M = Cu, Fe, Mn)-TiO2 (101) surface adsorbed by NO2 and N2O were calculated by density functional theory (DFT) and DFT + U theory. The results showed that the adsorption of NO2 and N2O on Mn and Fe atoms is more stable, and a large number of active electrons are formed around these atoms, facilitating the catalytic reactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Chanchan Wang, Quan Yang, Yanzhi Ding, Xiaoyong Lu, Dong Tian
Summary: It has been found that the introduction of buffer layers improves the electrical performance of solid oxide fuel cells (SSOFCs). In this study, varying ratios of Gd-doped CeO2 were used as buffer layers in YSZ-based SSOFCs. The results demonstrate that the performance of SSOFCs is enhanced when a buffer layer is added, with the highest performance achieved using Ce0.8Gd0.2O2-delta (GDC20) as the buffer layer. This suggests that the use of GDC series buffer layers is an attractive strategy to optimize performance loss due to electrolyte-electrode interactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Wang Li, Yi-Fan Zhang, Jia-Bin Huang, Chang-Yang Wang, Feng Zhang, Jiu-Zhong Yang, Long Zhao
Summary: The gas-phase reaction of propargyl with vinylacetylene was investigated using synchrotron photoionization and molecular-beam mass spectrometry methodologies. The formation mechanisms of the resulting cyclic structures were examined using quantum computations. Two previously unidentified isomers were detected and identified for the first time.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Avijit Pramanik, Sanchita Kundu, Olorunsola Praise Kolawole, Kaelin Gates, Paresh Chandra Ray
Summary: This study investigates the influence of aspect ratio and quantum confinement on the single-photon and two-photon absorption cross-section of perovskite CsPbI3 nanorods. Experimental data shows that CsPbI3 nanorods have an extremely high two-photon absorption cross-section, significantly surpassing organic chromophores and other CsPbBr3 nanocrystals. Moreover, adjusting the aspect ratio can significantly enhance the absorption ability. Additionally, the study also reveals a moderate quantum confinement effect on the single-photon and two-photon absorption cross-section of the nanorods.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Hyon-Tae Pak, Jin-A Choe, Kyong-Sik Ju, Yong -Son Rim
Summary: Drug-loaded cellulose diacetate (CDA) membranes were prepared using different compositions of mixed solvent. The microstructure and performance of the membranes were investigated, and a method to predict drug release properties was proposed. The results showed that the composition of the mixed solvent significantly affected the overall performance of CDA membranes, and the release rates of drugs were related to Δdelta and the intrinsic viscosity of CDA.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Gabriella E. Ravin, E. Curotto
Summary: We have developed a systematic approach to optimize the training set sizes for neural networks in fitting ab initio potential energy surfaces. Using this approach, we have constructed several spectroscopic quality potential energy surfaces for [Li(H2)n]+, n = 1 - 9. The ground state properties have been computed for all the systems and selected states.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Guohua Xu, Lei Xu, Feng Zhang, Chunling Yu, Yu Song
Summary: NiS1.03@Ni7S6/carbon composite was successfully prepared using corn stalk as a carbon source via a simple adsorption-sulphurization process. The composite exhibited a specific capacitance of 1554.6 F/g at 1 A/g as a supercapacitor electrode, with a capacitance retention rate of 80.4% after 5000 cycles. Furthermore, the NiS1.03@Ni7S6/carbon//AC asymmetric supercapacitor showed a high energy density of 41.2 Wh kg-1 at a power density of 750 W kg-1, and excellent cycling stability with 86.8% capacitance retention after 10,000 cycles.
CHEMICAL PHYSICS LETTERS
(2024)
