Article
Chemistry, Physical
Qian Li, Ning Miao, Jinling Zhong, Chengzhang Wu, Haiyan Leng
Summary: This study investigates the effect of KH on the hydrogen storage properties of graphene-doped MgH2, in comparison with KOH. The results demonstrate that the addition of 1 wt% KH and 1 wt% graphene significantly enhances the hydrogen storage performance of MgH2. It desorbs 6.0 wt% H2 within 30 min at 300°C, faster than pure MgH2. However, the desorption rate and activation energy are slower and larger, respectively, than the sample doped with KOH and graphene. Formation of the catalyst KMgH3 is observed with both KH and KOH, indicating that the H-H exchange between KH and MgH2 may suppress the desorption of MgH2, while the in-situ formed MgO by KOH addition promotes MgH2 desorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Brandom Jhoseph Cid, Akari Narayama Sosa, Alvaro Miranda, Luis Antonio Perez, Fernando Salazar, Arturo I. Mtz-Enriquez, Miguel Cruz-Irisson
Summary: The use of nanomaterials for hydrogen storage is important, but current potential nanomaterials have low density and stability at room temperature. This study investigates the hydrogen storage capabilities of Na-, K- and Ca-decorated B-doped siligene monolayer (BSiGeML) using density functional theory calculations. The results show that boron doping improves the interaction between metal adatoms and the siligene monolayer. K- and Ca-decorated BSiGeML can bind up to seven H2 molecules per metal adatom, while Na-decorated BSiGeML only adsorbs four H2 molecules per site. At room temperature, all H2 molecules adsorbed on Na- and Ca-decorated BSiGeML are stable at mild pressure. Metal decoration on both sides of BSiGeML may exceed the target of 5.5 wt% hydrogen gravimetric density proposed by DOE for 2025. K- and Ca-decorated BSiGeML could be efficient hydrogen molecular storage media compared to undoped SiGeML and other 2D pristine materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Zhiqiang Lan, Feifan Hong, Weitao Shi, Ruolin Zhao, Renhuan Li, Yi Fan, Haizhen Liu, Wenzheng Zhou, Hua Ning, Jin Guo
Summary: In this study, carbon-nitrogen nanosheets co-doped with disk-like nickel and titanium dioxide nanoparticles ((Ni, TiO2)CN) were prepared using metal-organic frameworks (MOFs) as precursors to enhance the hydrogen storage performance of magnesium hydride (MgH2). The co-doped MgH2 system exhibited excellent hydrogen storage properties at low temperatures, with the ability to absorb 5.08 wt% of hydrogen in 100 min at 40 degrees C and 6.17 wt% of hydrogen in 10 min at 125 degrees C. The findings of this work provide a new strategy for improving the properties of Mg-based hydrogen storage materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shaolei Zhao, Long Liang, Baozhong Liu, Limin Wang, Fei Liang
Summary: The introduction of lithium nitride as a catalyst in aluminum hydride significantly reduces the dehydrogenation temperature and provides stable hydrogen capacity. Adjusting the mass fraction of lithium nitride enables the release of hydrogen at different temperatures.
Article
Chemistry, Physical
N. N. Sulaiman, M. Ismail, A. H. A. Rashid, N. A. Ali, N. A. Sazelee, S. N. Timmiati
Summary: The hydrogen sorption performances of the 4MgH(2) + LiAlH4 system destabilized with 5 wt% Al2TiO5 showed significantly improved dehydrogenation temperature and kinetics. The introduction of Al2TiO5 resulted in earlier hydrogen liberation and enhanced absorption and desorption kinetics, indicating a synergistic effect on hydrogen storage behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Haiguang Gao, Yingyan Zhao, Xu Zhang, Baozhou Zhao, Zhen Jia, Yana Liu, Xiaohui Hu, Yunfeng Zhu
Summary: This study introduces solid-solution MAX phase TiVAlC catalyst directly into the MgH2 system to improve its hydrogen storage performance. The excellent catalytic activity of TiVAlC catalyst can be explained by abundant electron transfer at external and internal interfaces. The influence of impurity phase on the overall activity of catalysts has also been studied, providing a unique method for designing composite catalyst to improve hydrogen storage performance of MgH2.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Brandom Jhoseph Cid, Akari Narayama Sosa, Alvaro Miranda, Luis A. Perez, Fernando Salazar, Miguel Cruz-Irisson
Summary: The study investigated two schemes to enhance hydrogen storage on metal decorated two-dimensional siligene. Boron doping was found to improve the interaction between metal atoms and siligene, with Sc atoms having the most significant impact on hydrogen storage capacity.
Article
Chemistry, Multidisciplinary
Xinyue Tong, Zhen Wang, Zhaoyang Liu, Biao Yang, Zhenjiang Lu, Jing Xie, Jindou Hu, Yali Cao
Summary: In this work, hollow spherical P-doped CuS micromaterials were synthesized and exhibited high reversible capacity, excellent cycling stability, and rate performance as electrode material for sodium-ion batteries.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
YongJun Cho, Sichi Li, Jonathan L. Snider, Maxwell A. T. Marple, Nicholas A. Strange, Joshua D. Sugar, Farid El Gabaly, Andreas Schneemann, Sungsu Kang, Min-ho Kang, Hayoung Park, Jungwon Park, Liwen F. Wan, Harris E. Mason, Mark D. Allendorf, Brandon C. Wood, Eun Seon Cho, Vitalie Stavila
Summary: The study demonstrates a new approach to thermodynamically stabilizing metastable metal hydrides by coordinating them with nitrogen binding sites within nanopores. This allows for low-temperature hydrogen release and regeneration of LiAlH4 at high pressure, with a predicted decrease in Al-H bond dissociation energy. Additionally, solid-state reversibility is achieved through a combination of nanoconfinement effects, Li adatom formation, and charge redistribution between the metal hydride and the host.
Article
Green & Sustainable Science & Technology
Mrinal Kanti Dash, Swapan Sinha, Himadri Sekhar Das, Gobinda Chandra De, Santanab Giri, Gourisankar Roymahapatra
Summary: The hydrogen adsorption characteristics of different Li-doped aromatic five-membered heterocyclic systems were studied. It was found that the lithiated heterocyclic systems were stabilized as cation and exhibited superalkali behavior. The (Ar-Li)(+) complexes were capable of adsorbing up to five molecular hydrogens in a quasi sorption way.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Nanoscience & Nanotechnology
Liang Dan, Hui Wang, Xiaobao Yang, Jiangwen Liu, Liuzhang Ouyang, Min Zhu
Summary: This study demonstrates the significant improvement of hydrogen sorption performances of MgH2 by synthesizing Nb-doped TiO2 solid-solution-type catalysts. The catalyzed MgH2 is able to absorb 5% of H2 at room temperature for 20 seconds, release 6% of H2 at 225 degrees C within 12 minutes, and achieve complete dehydrogenation at 150 degrees C under a dynamic vacuum atmosphere. The success of solid solution-type catalysts in MgH2 provides a demonstration and inspiration for the development of high-performance catalysts and solid-state hydrogen storage materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Junmei Liang, Zhou Zhou, Qicheng Zhang, Xuewen Hu, WenChao Peng, Yang Li, Fengbao Zhang, Xiaobin Fan
Summary: The Fe2O3@Ti3C2Tx composite prepared by alkali treatment exhibits extremely high reversible capacity and excellent cycle stability in high-performance lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Peng Wang, Fengtao Zhang, Cailing Wu, Jianji Wang, Buxing Han, Zhimin Liu
Summary: CoCO3-coated nitrogen-doped carbon nanotubes with a sea cucumber-like morphology were used for water splitting, showing excellent catalytic activity and stability. The catalyst exhibited superior electrocatalytic activity for hydrogen and oxygen evolution reactions, with low cell voltage and high turnover frequency.
Article
Green & Sustainable Science & Technology
Zhenluo Yuan, Dafeng Zhang, Guangxin Fan, Yumei Chen, Yanping Fan, Baozhong Liu
Summary: The synthesis of highly stable catalysts for NaAlH4 de/hydriding kinetics and cycle stability is crucial. In this study, N-doped carbon coated two-dimensional layered Ti3C2 (Ti3C2/NC) catalyst was synthesized and showed remarkable improvement in the dehydrogenation properties of NaAlH4, with enhanced dehydrogenation kinetics and stability. The formation of Ti-species during ball milling and the interaction between pyridinic-N and Ti-0 were found to be responsible for the enhanced hydrogen storage performance of NaAlH4.
Article
Chemistry, Physical
Yun Xie, Cun-Jian He, Jun Zhang, Yun-Lei Hou, Wen-Jie Meng, Dong-Lin Zhao
Summary: A new method of nitrogen-doped carbon caging silicon nanoparticles is reported, which can effectively improve the electrochemical performance of silicon nanoparticles and thus enhance the performance of lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yuen Wai Lui, Bun Chan, Matthew Y. Lui
Summary: Dimethyl sulfide was utilized as an inexpensive and sustainable catalyst for methylations with dimethyl carbonate, resulting in high yields of products with a straightforward workup procedure. Experimental and theoretical methods were used to elucidate the likely mechanisms involving a reactive intermediate.
Article
Physics, Condensed Matter
Kimihiko Hirao, Han-Seok Bae, Jong-Won Song, Bun Chan
Summary: In this study, the Kohn-Sham density functional theory with long-range correction was used to estimate the valence ionization potentials of a group of small molecules. The results were compared with other methods, and it was found that the optimized functional performed better in estimating the valence level ionization potentials. The method was also reasonably accurate for outer valence orbitals but less accurate for core ionization energies.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Chemistry, Physical
Takahito Nakajima, Kimihiko Hirao, Bun Chan
Summary: This study generalizes Slater's transition state concept by deriving systematic higher-order transition state approximations, showing that the third-order generalized transition state (GTS3) approximation is a promising alternative due to its balance between accuracy and computational cost.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Bun Chan, William Dawson, Takahito Nakajima
Summary: In this study, we investigated the conformational space of the hydrogen-bonded and covalent linkages between the sugar and lignin components in lignocellulose. Through a multistage screening process, we identified a set of lowest-energy isomers and developed a cost-effective screening protocol. All low-energy conformers were characterized by hydrogen bonding between the sugar and lignin moieties. We also examined the interactions of covalently bonded sugar-lignin models with weak acids and found strong interactions with the oxygen of the sugar-O-lignin linkage. Our results suggest that acids like dihydrogen citrate could be attractive alternatives to HSO3- for lignocellulose processing.
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Physical
Kimihiko Hirao, Takahito Nakajima, Bun Chan, Ho-Jin Lee
Summary: The core ionization energies of second-period and third-period elements are investigated using Lambda SCF and Slater's transition state (STS) theory with Hartree-Fock (HF) and Kohn-Sham (KS) approximations. Electron correlation increases the estimated core ionization energies, while the self-interaction error (SIE) decreases them, especially for the third-period elements. HF predictions of core ionization energies are reasonably accurate due to the lack of SIE, while KS calculations are sensitive to the functional used. Overall, the study highlights the importance of considering electron correlation and SIE when predicting core ionization energies. Rating: 7 out of 10.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Bun Chan, Seiji Shirakawa
Summary: In this study, computational quantum chemistry was used to investigate the cation affinity of various nucleophiles. The results suggest that organochalcogens may serve as catalysts for cation transfer. The study also found that certain DFT methods, such as DSD-PBEP86, can be used to study these cation transfer processes.
CANADIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Bun Chan
Summary: In this study, the performance of various small basis sets and their geometric counterpoise (gCP) corrections for DFT computations were examined. It was found that a simplified scheme, unity-gCP, using a single scaling parameter, can yield fair results for an arbitrary basis set. The optimal balance between accuracy and computational efficiency was found to be 6-31+G(2d) for medium-sized basis sets. On the other hand, less balanced basis sets, even larger ones, can show significantly worse accuracy, and the inclusion of gCP may lead to overcorrections.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Nanoscience & Nanotechnology
Yakui Mu, Tan Wang, Zeyu Deng, Bun Chan, Tiesheng Wang
Summary: Organic crystals assembled by TTF-based molecules hold potential for electronics, smart materials, and superconductors. A fragment charge difference method was used to investigate the charge transfer properties of these crystals, and the results were consistent with another established method. The study also demonstrated the influence of structure and chemistry on charge transfer properties.
Article
Chemistry, Multidisciplinary
Kimihiko Hirao, Takahito Nakajima, Bun Chan, Ho-Jin Lee
Summary: This study calculates the core ionization energies of various molecules using different methods and compares the results. The use of the shifted STS methods is shown to be effective in predicting the core ionization energies.
JOURNAL OF COMPUTATIONAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Bun Chan
Summary: In this study, computational quantum chemistry is used to obtain lattice energies (LEs) for various ionic clusters with the NaCl structure. Different methods are applied to small and large clusters, and species-specific adjustments are made to account for systematic deviations. The results provide a straightforward means to estimate LEs for similarly structured ionic compounds.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Bun Chan, Amir Karton
Summary: In this study, the energy differences between singlet and triplet states of small fullerenes were investigated using density functional theory (DFT), along with the ionization energy (IE) and electron affinity (EA). The DFT methods consistently showed qualitative observations. Among the 812 fullerene isomers, approximately 80-90% had a singlet ground state, while the rest had ground-state triplets. Some of these may enhance the efficiency of singlet-fission materials for light harvesting. The triplet-singlet energy difference correlated well with the IE-EA differences, which serve as indicators for charge-transfer capabilities. Larger fullerenes were surveyed to identify candidates with superior charge-transfer properties, suggesting that optimally shaped medium-sized fullerenes are the most promising.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Qinyi Gu, Zi-Han Zhao, Bun Chan, Tong Yan, Jing-Lin Zuo, Deanna M. D'Alessandro, Cheng-Hui Li
Summary: A new Ni-dithiolene ligand was used to prepare a photothermal metal-organic framework (MOF) that showed efficient conversion of light into heat. The MOF had strong absorption in the near-infrared region due to the radical monoanion of the ligands, and the structure played an important role in the photothermal properties. The photothermal MOF was then doped into a self-healing polymer, enabling the composites to recover from dynamic damage using the heat generated by photostimulus.
ACS MATERIALS LETTERS
(2023)
Article
Multidisciplinary Sciences
Chisato Terada, Kaho Oh, Ryutaro Tsubaki, Bun Chan, Nozomi Aibara, Kaname Ohyama, Masa-Aki Shibata, Takehiko Wada, Mariko Harada-Shiba, Asako Yamayoshi, Tsuyoshi Yamamoto
Summary: In this study, a toehold-bearing ASO architecture is developed to mitigate a broad spectrum of off-target interactions, significantly enhancing the safety profile of ASO drugs.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Chanel F. Leong, Bun Chan, Tianfu Liu, Harrison S. Moore, Idan Hod, Marcello B. Solomon, Pavel M. Usov, Joseph T. Hupp, Omar Farha, Deanna M. D'Alessandro
Summary: This article reports novel charge transfer (CT) complexes containing mixed and segregated stack donor-acceptor (D-A) complexes of tetrathiafulvalene (TTF), tetrathianaphthalene (TTN) and naphthalene diimide (NDI). Despite the detection of low charge transfer in the three salts using various spectroscopic techniques, the properties of TTN core are elucidated for the first time through DFT calculations. The article highlights the performance of TTN in a CT complex and demonstrates the importance of a combined approach to characterizing CT in organic D-A complexes.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Environmental Sciences
Keiran N. Rowell, Scott H. Kable, Meredith J. T. Jordan
Summary: Carbonyls are abundant in the atmosphere and play a crucial role in atmospheric photochemistry. Experimental and theoretical studies suggest that concerted triple fragmentation and H-2 loss pathways in saturated aldehydes have direct implications for global H-2 production, while tautomerisation affects the atmospheric production of organic acids.
ATMOSPHERIC CHEMISTRY AND 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)