Article
Chemistry, Physical
Ali Rashti, Xiner Lu, Alex Dobson, Ehsan Hassani, Farshad Feyzbar-Khalkhali-Nejad, Kai He, Tae-Sik Oh
Summary: Highly porous Co3O4/NiCo2O4 nanostructures were synthesized by adjusting the oxide composite structure through modifications in ZIF-67 crystallite size and pore structure using the coordination modulation method. The nanostructured Co3O4/NiCo2O4 exhibited a maximum capacitance of 770 F g(-1) with good cycle stability, maintaining 70% of the initial capacitance after 10,000 charge-discharge cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Physics, Applied
Wenbo Geng, Qing Wang, Jianfeng Dai, Haoran Gao
Summary: The study demonstrates that the urchin-like NiCo2O4 transformed into porous AA-NiCo2O4 with a larger specific surface area, leading to increased specific capacitance and rate capacitance, which indicates a promising direction for the development of high-performance supercapacitor electrode materials.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Chemistry, Physical
Yu Liu, Zhenlin Ma, Na Xin, Yulong Ying, Weidong Shi
Summary: In this study, P-doped NiCo2O4/NiMoO4 multi-dimensional nanostructures were successfully synthesized as electrode materials for supercapacitors, exhibiting high specific capacitance at low current density and excellent cycle stability at high current density. A hybrid supercapacitor device was prepared with high energy density at low power density, and showed excellent capacity retention rate after a large number of cycles, demonstrating the huge potential of multi-dimensional metal oxides in energy storage.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shuxuan Feng, Xin Wang, Menglu Wang, Chong Bai, Shitai Cao, Desheng Kong
Summary: The study demonstrates an ultrastretchable and high-performing supercapacitor based on MXene electrodes with crumpled textures, showing high specific capacitance, ultrahigh stretchability, and >90% retention of initial capacitance after 1000 stretch-relaxation cycles. This development provides an attractive avenue for designing stretchable electrodes using various two-dimensional nanomaterials and their composites.
Article
Energy & Fuels
Periyasamy Sivakumar, C. Justin Raj, Hyun Jung, Ho Seok Park
Summary: Advanced energy storage electrode materials should focus on nanoarchitecture, multiple redox states, large surface area, and surface-active sites. This study reports the synthesis of Ni/NiCo2O4 nanosheets decorated onto reduced graphene oxide (rGO) followed by thermal treatment. The resulting nanoarchitecture electrode exhibits a high specific capacitance of 1110 F g-1 at 1 A g-1, demonstrating excellent rate capability. Furthermore, a hybrid supercapacitor constructed using the nanoarchitecture electrode delivers a high specific capacitance of 127 F g-1 and demonstrates excellent long-term cyclability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Vikas Sharma, Sung Jae Kim, Nam Hoon Kim, Joong Hee Lee
Summary: The study successfully developed high-performance supercapacitors by rationally designing and combining materials to achieve improved specific capacitance and energy density, as well as demonstrating good performance in terms of power, efficiency, and stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Nazish Parveen, Sajid Ali Ansari, Batool Taher Al-Abawi, Mohammad Omaish Ansari
Summary: Hierarchical three dimensional nanoflakes (H3DN) of nickel oxide (NiO) were successfully designed and grown on carbon microfibers (CMF) as a binder free electrode material for supercapacitor applications via a facile hydrothermal method, exhibiting superior electrochemical performance and cyclic stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Krishnan Venkatesh, Chelladurai Karuppiah, Raja Palani, Gnanaprakasam Periyasamy, Sayee Kannan Ramaraj, Chun-Chen Yang
Summary: In this work, NiCo2O4 nanosheets derived from ZIF-67 and graphene oxide template were synthesized using the ultrasonication method. The resulting composite electrode exhibited a high specific capacitance and excellent capacity retention in supercapacitor applications, demonstrating its potential as an advanced energy storage material.
Article
Chemistry, Analytical
Congmei Yue, Boyang Hu, Wenjing Huang, Aifeng Liu, Zengcai Guo, Jingbo Mu, Xiaoliang Zhang, Xiaoyan Liu, Hongwei Che
Summary: In this work, PPy@CoP core-shell heterogeneous nanostructures are grown directly on Ni foam using a two-step electrochemical synthesis method, showing superior electrochemical and cycling performance for high-performance supercapacitor applications. The rational design of heterostructures based on PPy and metal phosphides offers new insights for the development of high-performance SCs.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Periyasamy Sivakumar, Dhanasekaran Vikraman, C. Justin Raj, Sajjad Hussain, JeongWon Park, Hyun-Seok Kim, Hyun Jung
Summary: The study focuses on fabricating NiCo/NiO/NiCo2O4 composite materials with abundant active edges and improved electrical conductivity. The NC1 composite demonstrated excellent electrocatalytic activity and supercapacitor performance, as well as outstanding energy density and stability in a dual-electrode device.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Soumyashree Pany, Amtul Nashim, Kulamani Parida, Pradipta Kumar Nanda
Summary: The NiCo2O4/O-g-C3N4 nanocomposites exhibit excellent electrochemical performance and cyclic stability for supercapacitor applications. The NCO/O-g-CN nanocomposite shows higher specific capacity and outstanding charge storage performance, indicating synergistic effects of the individual materials.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Ceramics
Qiangqiang Wang, Yongsheng Fang, Maosheng Cao
Summary: Transition metal carbide or nitride (MXenes) hold promise for electrochemical energy storage due to their excellent properties. Researchers have successfully constructed 3D TPCs nanoarchitectures and manufactured MSCs micro-supercapacitors with competitive energy storage capacities.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Hongzhi Wang, Hao Dong, Jing Lu, Shaofeng Sun, Weiguo Zhang, Suwei Yao
Summary: NiCo2O4/rGO nanocomposites exhibit high capacitance, excellent cycling stability, and are promising candidates for high-performance supercapacitors.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Yuanduo Qu, Siqi Liao, Liangyi Wu, Junkai Wang, Lianfeng Duan, Xia He, Fushen Lu
Summary: An integrated photocapacitor (IPC) is a self-charging capacitor that converts solar radiation to electrochemical energy and can store it. However, current IPCs have low conversion efficiency and cycling performance due to incompatibility issues, device packing problems, carrier recombination, and long electron transmission paths. To address these issues, a three-electrode quasi-solid-state IPC based on a charge-separated transition mechanism and BMIMBF4 ion gel electrolyte was proposed. The IPC achieved an overall conversion efficiency of 5.8% and maintained an energy storage efficiency of 84.57%. Additionally, the bendable free-standing electrode can be used in flexible and high-voltage IPCs as a reliable off-grid system for next-generation electronics.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Energy & Fuels
Hanieh Ansarinejad, Mehdi Shabani-Nooshabadi, Sayed Mehdi Ghoreishi
Summary: This study investigates the synthesis, energy storage ability and characterization of novel ternary WO3@NiCo2O4/rGO nanocomposites (NWG) as active electrode materials. The NWG nanocomposites exhibit excellent electrochemical properties, including high specific capacity, high energy density, and excellent rate capability, showing great potential for the development of supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
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)