Article
Chemistry, Multidisciplinary
Lei Zhang, Chenyang Zhang, Xin Dong, Zeyuan Dong
Summary: In this study, artificial supramolecular lithium channels composed of pore-containing small aromatic molecules were developed for the treatment of psychiatric disorders. These channels showed unprecedented transmembrane transport of exogenous lithium ions with high selectivity. The discovery of the basic requirements for ion transport function in these channels may have important implications in studying the physiological role of intracellular lithium ions and treating psychiatric disorders.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Andrew G. Korovich, Kevin Chang, Geoffrey M. Geise, Louis A. Madsen
Summary: The study found that differences in diffusive activation energy between glassy and rubbery membranes mainly originate from differences in the intermolecular interactions of water with different local polymer structures. The more rigid glassy methacrylate backbone introduces configurational restrictions to transport, leading to greater water-salt permeability selectivity compared to the rubbery polymer.
Article
Chemistry, Multidisciplinary
Yi Shen, Fan Fei, Yulong Zhong, Chunhai Fan, Jielin Sun, Jun Hu, Bing Gong, Daniel M. Czajkowsky, Zhifeng Shao
Summary: Researchers have developed a self-assembling nanopore with a hybrid hydrophilic/hydrophobic lumen that allows for regulated water transport by alkali metal ions. The study demonstrates a non-monotonic dependence of water transport on cation size, with a broad range of water flow observed, from minimal in the presence of sodium ions to levels comparable to a biological water channel in their absence. Molecular dynamics simulations reveal that the sensitivity of water flow is due to the binding of cations within the pore, providing a proof-of-concept for the rational design of controllable synthetic water channels.
ACS CENTRAL SCIENCE
(2021)
Article
Multidisciplinary Sciences
Yann Loick Chappe, Sandra Pierredon, Alexandre Joushomme, Pablo Molle, Andre Garenne, Anne Canovi, Solene Barbeau, Florence Poulletier De Gannes, Annabelle Hurtier, Isabelle Lagroye, Thomas Ducret, Jean-Franc Comma Ois Quignard, Vincent Compan, Yann Percherancier
Summary: This study developed highly sensitive bioluminescence resonance energy transfer (BRET) probes to track selective ion permeability in ion channels. The results showed that well-known TRPV1 inhibitors more potently inhibit Ca2+ influx than K+ efflux induced by capsaicin (CAPS). Furthermore, AMG517 was found to be a partial agonist of K+ efflux and triggered TRPV1-dependent cell membrane hyperpolarization. Ligand biases were also observed in other families of cationic channels.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Anu Tyagi, Tofayel Ahmed, Shi Jian, Saumya Bajaj, Seow Theng Ong, Stephanie Shee Min Goay, Yue Zhao, Igor Vorobyov, Changlin Tian, K. George Chandy, Shashi Bhushan
Summary: This study reports two structures of the human voltage-gated potassium channel Kv1.3 – apo-Kv1.3 and dalazatide-Kv1.3. Both structures are in an activated state and show remarkable rearrangements in the selectivity filter. In apo-Kv1.3, the aromatic residue Y447 adopts a unique position diverging from other K+ channels, while in dalazatide-Kv1.3, binding of dalazatide narrows the selectivity filter and stabilizes Y447 in a position similar to other K+ channels. These structural changes play a crucial role in Kv1.3's transition into the drug-blocked state.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Engineering, Environmental
Xi Zeng, Yang Liu, Teng Zhang, Jian-Ce Jin, Ji-Long Li, Qian Sun, Yue-Jie Ai, Mei-Ling Feng, Xiao-Ying Huang
Summary: This study presents an effective method for capturing Eu3+ from radioactive wastewater using two layered sulfide adsorbents with ultrafast kinetics and high absorption capacities. The adsorbents show high selectivity for Eu3+ and can easily elute the absorbed ions. The adsorption mechanism involves ion exchange between Eu3+ and interlayered cations, making layered sulfides promising adsorbents for environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yizhou Yang, Shanshan Liang, Hao Wu, Guosheng Shi, Haiping Fang
Summary: This Perspective revisits the effect of hydrated cation-pi interactions at the liquid-solid/soft matter interface using statistical physics, showing dynamic influence and time-dependent statistical effects. Several pieces of experimental evidence and applications in environmental protection, industrial manufacturing, and biological sciences are highlighted from a statistical perspective.
Article
Engineering, Chemical
Jue Hou, Huacheng Zhang, Jun Lu, Xingya Li, Chen Zhao, Huanting Wang, Aaron W. Thornton, Kristina Konstas
Summary: Metal-organic-framework-based channel (MOFC) membranes have great potential in ion separation. However, scaling up the MOFC membranes from single-channel to multichannel membranes remains a challenge. This study successfully minimized defects in multichannel MOFC membranes and achieved high selectivity and conductance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Selin Ozkul, Jonathan J. Van Daal, Norbert J. M. Kuipers, Roel J. M. Bisselink, Harry Bruning, Jouke E. Dykstra, Huub H. M. Rijnaarts
Summary: Water reuse is a potential solution to combat the depletion of freshwater resources but is often hindered by the accumulation of specific ions in recirculating water. Electrodialysis, a water treatment technology that selectively removes ions from water, can enhance the potential for water reuse. In this study, a theoretical model for multi-ionic mass transport in electrodialysis, including ion-water and ion-membrane frictions, was developed and validated through experiments. The model revealed that electromigration is the primary contributor to ion transport, followed by convection, and that diffusion controls the selectivity of ion transport under constant voltage operation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Jaehyuk Kang, Ferdinan Cintron-Colon, Hyojoo Kim, Jueun Kim, Tamas Varga, Yingge Du, Odeta Qafoku, Wooyong Um, Tatiana G. Levitskaia
Summary: This study investigated the efficient removal of iodine species I- and IO3- using CoAl and NiAl layered double hydroxides (LDHs), showing that both LDHs exhibited rapid removal processes and higher affinity for IO3- over I-. The preferential ion-exchange for IO3- was attributed to structural similarity and new phase formation, providing insights into promising iodine sorbents.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Dan Qiao, Himanshu Joshi, Huangtianzhi Zhu, Fushi Wang, Yang Xu, Jia Gao, Feihe Huang, Aleksei Aksimentiev, Jiandong Feng
Summary: Synthetic nanopores have been developed for applications in membrane filtration technologies and biomolecular sensing, but challenges remain in providing them with atomically defined shape and deliberate placement of chemical groups. A chemically defined transmembrane nanopore, EPM, demonstrates stable transmembrane transport functionality, particularly with up to 21-fold selectivity for potassium over sodium ions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Andres Hernandez-Clavijo, Cesar Adolfo Sanchez Trivino, Giorgia Guarneri, Chiara Ricci, Fabian A. Mantilla-Esparza, Kevin Y. Gonzalez-Velandia, Paolo Boscolo-Rizzo, Margherita Tofanelli, Pierluigi Bonini, Michele Dibattista, Giancarlo Tirelli, Anna Menini
Summary: The COVID-19 pandemic highlighted our limited understanding of human olfactory physiology. By using acute slices of human olfactory epithelium and whole-cell patch-clamp technique, this study characterized the electrical properties of olfactory sensory neurons and supporting cells. The study also demonstrated the intact transduction cascade in this preparation through responses to odorant mixtures. This research provides valuable insights into human olfactory physiology and lays the foundation for future studies.
Article
Biochemistry & Molecular Biology
Kitty Hendriks, Carl Oester, Chaowei Shi, Han Sun, Adam Lange
Summary: The study demonstrates that K+-selective mutants lose selectivity filter stability under Na+ conditions without collapsing into a defined structure, and structural changes occur.
Compared to the non-selective wild-type NaK channel, the stronger link between the selectivity filter and the pore helix in K+-selective mutants reduces the ion-dependent conformational flexibility of the selectivity filter.
JOURNAL OF MOLECULAR BIOLOGY
(2021)
Article
Chemistry, Physical
Zhiyun Kong, Yajie Du, Junfu Wei, Huan Zhang, Longwei Fan
Summary: A novel and selective adsorbent was successfully synthesized for the removal of hexavalent chromium ions from aqueous solution. The prepared sorbent showed rapid adsorption kinetics, a wide working pH range, excellent selectivity, and regeneration capability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Review
Engineering, Chemical
Onder Tekinalp, Pauline Zimmermann, Odne Stokke Burheim, Liyuan Deng
Summary: This article reviews the use of monovalent selective anion exchange membranes in electrodialysis for separating halide ions. The article introduces the principles, membrane materials, and preparation methods of this method, and discusses the effects of operational conditions on halide removal. It also highlights the challenges and recognized gaps in this field, calling for further efforts in material and membrane design, solution dynamics exploration, operational understanding, and advanced modeling techniques.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Biographical-Item
Chemistry, Physical
Henry S. Ashbaugh, Dilipkumar Asthagiri, Thomas L. Beck, Susan B. Rempe
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Editorial Material
Chemistry, Physical
Arjun Valiya Parambathu, Thiago J. Pinheiro dos Santos, Walter G. Chapman, Dilipkumar N. Asthagiri
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Review
Chemistry, Multidisciplinary
Diego T. Gomez, Lawrence R. Pratt, Dilipkumar N. Asthagiri, Susan B. Rempe
Summary: This article reviews the quasi-chemical theory (QCT) used to evaluate the hydration free energies of ions, with a focus on anions such as halides. The study finds that QCT provides good agreement with experimental results and accurate numerical values for the inner-shell contribution. However, there may be issues when evaluating the outer-shell contribution for heavily hydrated, less effectively shielded ions. Sampling inner-shell structures from bulk solutions can improve the accuracy.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Physical
Rohan S. Adhikari, Arjun Valiya Parambathu, Walter G. Chapman, Dilipkumar N. Asthagiri
Summary: Calculating the hydration free energy of macromolecules has always been a challenge, but with the development of molecular quasi-chemical theory (QCT), it is now possible to calculate it within all-atom simulations. This study compares the results obtained using QCT with predictions from implicit solvent models and reveals the importance of cooperativity in hydration. The deviations between implicit and explicit solvent results highlight the limitations of additive models.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Physical
Susan B. Rempe, Pengyu Ren, Elizabeth E. Wait, Justin Gourary, Chengwen Liu, Erik D. Spoerke
Summary: Rare-earth metals (REMs) are essential for various industries and medical applications. A new approach inspired by proteins' binding properties shows promise for REM refinement. Understanding the biological recognition mechanisms is crucial for the success of this bioinspired method.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Arjun Valiya Parambathu, Walter G. Chapman, George J. Hirasaki, Dilipkumar Asthagiri, Philip M. Singer
Summary: In this study, atomistic MD simulations were used to investigate the effects of nanoconfinement on the 1H NMR relaxation times T1 and T2 of heptane in kerogen. The results show that confinement plays an important role in reducing T1 by -3 orders of magnitude, in agreement with experimental measurements. For T2, confinement breaks spatial isotropy and gives rise to residual dipolar coupling, leading to a -5 orders of magnitude reduction compared to bulk heptane. Using the simulated T2, the surface relaxivity was calibrated to predict the pore-size distribution of organic nanopores in kerogen without additional experimental data.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Polymer Science
Winnie H. Shi, Rohan S. Adhikari, Dilipkumar N. Asthagiri, Amanda B. Marciel
Summary: We studied the influence of charge block length on the structure and behavior of polyampholyte chains using SAXS and molecular simulations. By synthesizing polyampholytes with different lengths of glutamic acid and lysine blocks, we found that longer blocks tend to induce phase separation. The addition of NaCl affected the phase behavior in a manner dependent on the charge block length. Our findings suggest the importance of electrostatic interactions and hydrogen bonding in phase separation and offer insights for intracellular condensates and material design.
Article
Chemistry, Physical
Chase E. Herman, Arjun Valiya Parambathu, Dilipkumar N. Asthagiri, Abraham M. Lenhoff
Summary: Electrostatic interactions in proteins are influenced not only by ionic charges but also by their chemical identities. This study investigates the varying strength of association of different monovalent molecular ions in protein-protein and protein-ligand interactions. A nonpolarizable model captures trends with cations, but not anions, while a continuum correction model considering electronic polarizability captures both trends at the cost of fidelity to the underlying ion-pair association energy landscape. A polarizable model proves crucial in capturing experimentally suggested trends for both cations and anions, altering the free energy landscape and configurational sampling.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Polymer Science
Winnie H. Shi, Rohan S. Adhikari, Dilipkumar N. Asthagiri, Amanda B. Marciel
Summary: In this study, the effect of charge block length on the conformation and phase behavior of polyampholyte chains was investigated using small-angle X-ray scattering (SAXS) and molecular simulations. The results showed that as the block size increased, the polyampholyte chains tended to phase separate. The addition of NaCl resulted in a salting-in effect in the phase separated polyampholytes, which was dependent on the charge block length. Fourier-transform infrared (FTIR) spectroscopy revealed the disruption of intramolecular hydrogen bonds upon the addition of NaCl, indicating the involvement of electrostatic interactions and hydrogen bonding in the phase behavior. SAXS spectra showed minimal dependence of charge block length on the radius of gyration (Rg) for soluble polyampholytes under no-added salt conditions, but local chain stiffening was found to be dependent on charge block length. With increasing NaCl, all polyampholytes expanded and behaved as neutral or swollen chains in good solvent conditions, consistent with electrostatic screening. Molecular simulations were in qualitative agreement with the experiments. The implications of this study for understanding intracellular condensates and material design were also highlighted.
Article
Chemistry, Physical
Arjun Valiya Parambathu, Walter G. Chapman, George J. Hirasaki, Dilipkumar Asthagiri, Philip M. Singer
Summary: This study investigates the effects of nanoconfinement on the 1H NMR relaxation times (T1 and T2) of heptane in kerogen using atomistic MD simulations. The results show that confinement plays an important role in reducing T1 by three orders of magnitude, in agreement with experimental measurements of heptane dissolved in kerogen. In addition, confinement breaks spatial isotropy and gives rise to residual dipolar coupling, leading to a five orders of magnitude reduction in T2. The simulated T2 is used to calibrate the surface relaxivity and predict the pore-size distribution of the organic nanopores in kerogen.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Thiago J. Pinheiro J. dos Santos, Arjun Valiya Parambathu, Carla C. Fraenza, Casey Walsh, Steve G. Greenbaum, Walter G. Chapman, Dilip Asthagiri, Philip M. Singer
Summary: In this study, the effects of temperature and concentration on r(1) of the Gd3+-aqua complex were investigated using molecular dynamics simulations and measurements. By expanding the autocorrelation function and determining the thermal activation energies, new insights into the molecular-scale physics of r(1) were revealed.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Mark J. Stevens, Susan L. B. Rempe
Summary: This study investigates how the number of acetate ligands affects ion binding preferences for two monovalent cations using density functional theory. The results show that multiple minima occur in the vicinity of the optimal structure for two cations, and the preferred optimal structure with two cations is favored over a mixture of single cation complexes for Li, Na, and K.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Cole D. Allen, Susan L. B. Rempe, Timothy S. Zwier, Pengyu Ren
Summary: Ion trap quantum computing utilizes electronic states of atomic ions such as Ca+ to encode information on to a qubit. To explore the fundamental properties of Ca+ inside molecular cavities, we describe here a computational study of Ca+ bound inside neutral [n]-cycloparaphenylenes (n = 5-12), often referred to as nanohoops. This ab initio study characterizes optimized structures, harmonic vibrational frequencies, potential energy surfaces, and ion molecular orbital distortion as functions of increasing nanohoop size. The results of this work provide a first step in guiding experimental studies of the spectroscopy of these ion-molecular cavity complexes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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)