Article
Energy & Fuels
Bishwajit Changmai, Andrew E. H. Wheatley, Ruma Rano, Gopinath Halder, Manickam Selvaraj, Umer Rashid, Samuel Lalthazuala Rokhum
Summary: A robust and magnetically recoverable Fe3O4@SiO2-SO3H core@shell nanoparticulate acid catalyst was successfully synthesized for the transesterification and esterification of triglycerides and free fatty acids. The catalyst showed high conversion rate, low activation energy, excellent chemical and thermal stability, and reusability. The study demonstrated the potential of the catalyst for biodiesel production.
Article
Green & Sustainable Science & Technology
Suma Das, Soumik Das, Ranjith G. Nair, Avijit Chowdhury
Summary: Ternary nanocomposites (TNCs) composed of layered functional materials are used to enhance photocatalytic performance by suppressing carrier recombination and utilizing the full UV-visible-near infrared spectrum. In this study, g-C3N4/rGO/ZnFe2O4 (CNGZF) TNCs with tunable g-C3N4 mass fraction were developed for efficient photo-Fenton reactions under visible light. The optimized TNCs exhibited superior photocatalytic efficacy compared to individual g-C3N4 and ZnFe2O4, as well as binary composite CNZF. The presence of H2O2 further enhanced the removal efficiency, achieving more than 93% and 97% degradation of methylene blue under artificial visible light and solar irradiation, respectively. The TNCs also demonstrated excellent stability and recyclability due to their magnetic properties. The enhanced performance results from the unique properties of layered nanosheets, broadband absorption capabilities, and efficient electron migration. The study provides insights into the design of advanced photocatalysts for environmental remediation.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Ahmed M. Elgarahy, Abdullah Akhdhar, Abdullah S. Al-Bogami, Khalid Z. Elwakeel
Summary: Thiourea was deposited on the surface of Fe3O4 nanoparticles via a one-pot reaction to develop MNPs-TF as a new adsorbent. The adsorption process of MNPs-TF for CR and MO dyes was favorable in an acidic environment, dominated by the Langmuir assumption, and exothermic in nature. The synthesized adsorbent showed high recyclability of over 92% after 6 cycles.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Parintip Rattanaburi, Prawit Nuengmatcha, Rungnapa Pimsen, Paweena Porrawatkul
Summary: This paper presents the evaluation of carboxymethyl cellulose (CMC) as a chelating agent in the production of barium hexaferrite (BaFe12O19) using the sol-gel auto-combustion method. The synthesized nanoparticles are studied for their formation, morphology, and crystalline structure. The BaFe12O19 catalyst demonstrates high efficiency for dye degradation under visible light, with a band gap of 1.62 eV and a BET surface of 17.93 m(2)/g. Various operating parameters are investigated, and the BaFe12O19 catalyst shows excellent reusability for dye degradation. This study confirms that photocatalytic degradation is a promising technology for treating wastewater from textile dye industries.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Is Fatimah, Ika Yanti, Hiroko Kawaii Wijayanti, Elfira Ulya Nisa, Suresh Sagadevan, Muchammad Tamyiz, Ruey-an Doong
Summary: By supporting NiFe2O4 onto montmorillonite, a highly active and reusable catalyst for methyl violet oxidation was obtained. Through XRD, TEM, XPS, and VSM analyses, it was found that the concentration of precursor played a crucial role in determining the specific surface area, NiFe2O4 particle size, and magnetism. The study also revealed that adsorption had an impact on both the enhancement of catalytic activity and the stability of the catalysts.
Article
Green & Sustainable Science & Technology
Iman Ghasemi, Mohammad Haghighi, Azadeh Talati, Ebrahim Abbasi Asl
Summary: The magnetic flower-like NiO-CuFe2O4 p-p heterostructure nanophotocatalysts were prepared and studied for the photodegradation of different organic dyes. Among them, the p-p heterostructured NiO-CuFe2O4 nanophotocatalyst with 40 wt% NiO and 60 wt% CuFe2O4 (NiO(40)-CuFe2O4(60)) showed the best photocatalytic performance, achieving removal and mineralization rates of 88.7% and 73.4% for malachite green, respectively. This enhanced performance was attributed to its high light absorption capacity, effective charge carrier separation, unique morphology, specific surface area, pore volume, band gap energy, and p-p heterojunction structure.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Yaran Cheng, Jing Chen, Tong Wang, Qin Wu, Daxin Shi, Yaoyuan Zhang, Kangcheng Chen, Hansheng Li
Summary: In this study, a novel reusable acid-resistant magnetic polymer nanosphere-immobilized MIL-100 catalyst was prepared using a layer-by-layer method. The catalyst showed good stability and catalytic activity, with the thickness of the MIL-100 shell being adjustable. Nano-sized MIL-100 exhibited better mass transfer efficiency. In acetalization, the catalyst achieved a conversion rate of 97.7% and could be reused at least five times.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Shuai Liu, Shuang Zhao, Fuqiang Fan, Bo-Tao Zhang, Shengrui Wang
Summary: Challenges remain in developing sustainable, cost-effective and environmentally friendly phosphate removal systems. However, the magnetic lanthanum/iron co-modified attapulgite (M-LaFeAP) showed excellent performance in phosphate removal with high efficiency, selectivity and recyclability.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Liqin Cai, Lina Zhang, Xiaojuan Xu
Summary: This study presents a stable and reusable homogeneous catalyst of ultra-small silver nanoparticles loaded triple-helix beta-glucan nanomaterial for efficient degradation of dyes and 4-nitrophenol in wastewater. The catalyst effectively disperses and stabilizes silver nanoparticles using Ag-O bonds in water, showing high catalytic efficiency. The research provides a novel strategy for designing eco-friendly homogeneous catalysts in wastewater treatment and expands the application of natural polysaccharides in synthetic catalysis.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Chuan Pu, Gang Lu, Hang Qi, Abdulgalim B. Isaev, Mingshan Zhu
Summary: In recent years, PS-based AOPs have gained attention for degrading environmental pollutants due to their excellent oxidation capacity, selectivity, and stability. Activation of PS through energy input or catalyst dosing can improve its oxidation performance, but disposable catalysts may cause waste and secondary pollution. Therefore, magnetically separable catalysts for activating PS have become popular due to their reusability.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Agricultural Engineering
Swathi Mukundan, Jin Xuan, Sandra E. Dann, Jonathan L. Wagner
Summary: This article presents a magnetite supported on activated carbon catalyst that can be magnetically retrieved and reused without regeneration. The FeOx/C catalyst increased the bio-oil yield by 19.7 +/- 0.96% in the HTL of draff reaction. The use of homogeneous Na2CO3 base as a catalyst and co-catalyst improved carbon extraction into the aqueous phase. The exceptional catalytic activity is attributed to the Fe3O4 phase, which enhances biomass decomposition and oil property with an energy recovery of about 84%.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Ngonidzashe Masunga, Bhekie B. Mamba, Kebede K. Kefeni
Summary: A novel nano composite of CuSm0.06Fe1.94O4@g-C3N4 with exceptional properties was synthesized and showed high efficiency in degrading pollutants under visible light. The nanocomposite also exhibited good degradation effects on various dyes and pharmaceuticals. The influence of reaction parameters on degradation efficiency was investigated, and the nanocomposite showed minimal loss in performance after multiple cycles and could be easily separated from treated water.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Masud Hassan, Amal Kanti Deb, Fangjie Qi, Yanju Liu, Jianhua Du, Adam Fahy, Md Ariful Ahsan, Sanjai J. Parikh, Ravi Naidu
Summary: Adsorption is a promising technology for removing organic and inorganic contaminants. This study synthesized magnetically separable mesoporous polymeric beads for efficient removal of methylene blue under broad solution pH. The adsorbent exhibited high adsorption capacity, suitable for different pH conditions. Kinetic model fittings indicated the efficient removal of MB by NiZnFe4O4-HNT@alg.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Haleh Mohebali, Gholamreza Moussavi, Meghdad Karimi, Stefanos Giannakis
Summary: In this study, a novel Fe3O4@Ce-UiO-66 composite was prepared and tested for the catalytic ozonation of Acetaminophen (ACT) in water solution. The results showed that Fe3O4@Ce-UiO-66 significantly enhanced the degradation and mineralization of ACT, and demonstrated its catalyzing role in the ozonation process. The catalyst exhibited efficient separation, stability, and reusability, and the degradation intermediates and transformation pathways of ACT were identified using LC-MS analysis.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xian Li, Pingying Liu, Jumei Li
Summary: In this study, a facile and efficient approach was developed to fabricate magnetically separable core-shell structured nanocomposites. The Fe3O4/mZrO(2)/Ag nanocomposites exhibited higher photocatalytic activity compared to Fe3O4/mZrO(2) composites, and showed remarkable reusability due to their easy separation and recycling with an external magnetic field.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Sachin R. Rondiya, Yogesh A. Jadhav, Aleksandar Zivkovic, Sagar B. Jathar, Ganesh K. Rahane, Russell W. Cross, Avinash Rokade, Rupesh S. Devan, Sadhu Kolekar, Robert L. Z. Hoye, Hirendra N. Ghosh, Nora H. de Leeuw, Sandesh R. Jadkar, Nelson Y. Dzade
Summary: By substituting Cd into Zn lattice sites, a structural transformation from the kesterite phase to the stannite phase in CZTS nanocrystals was induced, resulting in a reduced bandgap of 1.1 eV and an improved power conversion efficiency of 1.1% for the Cd-substituted solar cell. These results emphasize the significance of substitutional doping strategies in enhancing device characteristics of CZTS-based materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Subhash Chand Yadav, Alfa Sharma, Rupesh S. Devan, Parasharam M. Shirage
Summary: The influence of different counter electrode materials on the performance of TiO2 nanorod-based dye-sensitized solar cells (DSSCs) assembled with hibiscus dye was investigated. Carbon, graphite, and gold as counter electrode materials strongly affected the energy conversion efficiency of DSSCs. The introduction of a compact layer and the use of appropriate counter electrode materials can enhance the performance of the solar cells.
Article
Physics, Multidisciplinary
Kaushal H. Parmar, Vishesh Manjunath, Santosh Bimli, Parameshwar R. Chikate, Ranjit A. Patil, Yuan-Ron Ma, Rupesh S. Devan
Summary: Nickel oxide (NiO) nanostructures were synthesized and deposited on conducting glass substrates by hot-filament metal vapor deposition (HFMVD). The NiO exhibited good electrochromic behavior with high reversibility, short coloration and bleaching times.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Spectroscopy
Balu R. Thombare, Pravin R. Dusane, Prashant K. Bankar, Gaurav S. Lole, Amol B. Deore, Chaitali V. Khe, Prashant S. Badgujar, Dnyaneshwar S. Gavhane, Mahendra A. More, Shankar I. Patil
Summary: The present study investigates the field emission characteristics of cobalt ferrite nanoparticles decorated on reduced graphene oxide. The nanocomposite was synthesized using a simple glycol-based route and characterized using various techniques. The results demonstrate that the nanocomposite exhibits excellent field emission properties, which can be attributed to the surface morphology, increased number of emitting sites, high field enhancement factor, and reduction in the work function of the emitter.
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
(2022)
Article
Materials Science, Multidisciplinary
Rupali Chavan, Nilesh Bhat, Santosh Parit, Kitchamsetti Narasimharao, Rupesh S. Devan, Rahul B. Patil, Vijay C. Karade, Nilesh Pawar, Jin Hyeok Kim, Jyoti P. Jadhav, Ashok D. Chougale
Summary: This work presents a facile green synthesis method for producing Fe3O4 magnetic nanoparticles (MNPs), which exhibit high catalytic activity in Fenton and photo-Fenton reduction reactions. The MNPs show spherical morphology and have an average diameter of 6.3 +/- 1.1 nm. The study demonstrates the superior efficiency of the MNPs in both processes at varied pH ranges. Additionally, the MNPs exhibit good reusability and can effectively reduce dye and Cr(VI) loads in water treatment processes.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Coatings & Films
Manoj D. Joshi, Nilesh K. Kumbhar, Omkar V. Rambadey, Pankaj R. Sagdeo, Rupesh S. Devan, Santosh S. Hosmani
Summary: This study investigated the effect of hexagonal boron nitride (hBN) content, exfoliation extent, and substrate conditions on the tribological performance of aromatic thermoset polymer (ATSP) coatings deposited on stainless steel. The results showed that increasing the hBN content and stirring time reduced the coefficient of friction and volume loss of the coatings. Additionally, coatings deposited on substrates with surface mechanical attrition treatment (SMAT) exhibited lower friction and enhanced durability.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Subhash Chand Yadav, Abhishek Srivastava, Vishesh Manjunath, Archana Kanwade, Rupesh S. Devan, Parasharam M. Shirage
Summary: Cs2AgBiBr6 double halide-based lead-free perovskite solar cells have gained great attention in the research community due to their structural stability and optoelectronic properties. This report summarizes the multidimensional functionality of Cs2AgBiBr6 in various applications, and discusses the opportunities and obstacles for its use in lead-free perovskites. It provides a detailed analysis of the structural behavior, fabrication methods, and approaches to enhance performance and stability. Furthermore, it compares the performance of Cs2AgBiBr6 with different transport layers and modifications, and concludes with future perspectives.
MATERIALS TODAY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Santosh Bimli, Yashwanth K. Reddy, Vishesh Manjunath, Rupesh S. Devan
Summary: This study presents a highly stable and non-toxic kusachiite CuBi2O4 (CBO) as an excellent light harvester for thin-film photovoltaics. Different oxide heterostructure solar cells (AOHSC) combining CBO absorber with various metal oxides (MOs) were engineered and optimized, showing excellent power conversion efficiency under high acceptor carrier density of CBO absorber.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Chemistry, Analytical
Narasimharao Kitchamsetti, Manopriya Samtham, Diwakar Singh, Ekta Choudhary, Sachin R. Rondiya, Yuan -Ron Ma, Russell W. Cross, Nelson Y. Dzade, Rupesh S. Devan
Summary: Novel hybrid core-shell electrodes consisting of 2D and 1D nanomaterials are developed to address the relatively lower specific energy of supercapacitors. These electrodes, composed of hierarchical 2D MnO2 nanoflakes and 1D NTO mesoporous rods, provide a large surface area and enhanced OH- ions diffusion. The hybrid porous core-shell hetero-architecture of MnO2@NTO delivers high specific capacitance, specific power, and specific energy, with good retention in capacitance after cycling.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Energy & Fuels
Santosh Bimli, Vishesh Manjunath, Sameena R. Mulani, Aayushi Miglani, Onkar S. Game, Rupesh S. Devan
Summary: This study presents a comprehensive analysis of vacancy-ordered Cs2SnI6 perovskite as a light harvester in photovoltaic applications. The device architecture of FTO/ZnO/Cs2SnI6/HTL/Au, with different p-type metal oxides as hole transport layers, is systematically investigated using SCAPS-1D software. The optimized Cs2SnI6-based devices with CuBi2O4, Cu2O, CuAlO2, and NiO HTLs exhibit photoconversion efficiencies of 28.18%, 29.72%, 29.43%, and 29.33%, respectively.
Article
Materials Science, Multidisciplinary
Sameena R. Mulani, Santosh Bimli, Madhuri S. Patil, Umesh A. Kshirsagar, Rupesh S. Devan
Summary: The orthorhombic crystalline walnuts consisting of nanoparticles with an average size of -72 nm of stoichiometric LaFeO3 (LFO) exhibit excellent photocatalytic degradation properties for organic dyes. The LFO walnuts offer 10.280 m2/g surface area and have a band gap of 2.29 eV. Under continuous irradiation for 240 min, the degradation of Crystal Violet (CV), Methylene Blue (MB), and Rhodamine B (RhB) reach 96.02%, 90.22%, and 82.45% respectively, with rate constants of 0.012, 0.0096, and 0.0073 min-1. The LFO walnuts also demonstrate a sunlight driven degradation of -91% for organic CV dye. The study identifies the involvement of h+ and OZ in the photocatalytic degradation process and identifies the degradation intermediates using mass spectrometry.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Vishesh Manjunath, Santosh Bimli, Diwakar Singh, Rathindranath Biswas, Pravin N. Didwal, Krishna Kanta Haldar, Nishad G. Deshpande, Preeti A. Bhobe, Rupesh S. Devan
Summary: The feasibility of 1D porous NiO nanorods as an active electrode for capturing greenhouse CO2, effective supercapacitors, and efficient electrocatalytic water-splitting applications is reported in this study. The nanorods, formed by stacking cubic crystalline NiO nanoparticles with dimensions less than 10 nm, provide the necessary porosity. The NiO nanorods exhibit significant surface area, with a CO2 uptake of 63 mmol g(-1), a specific capacitance of 368 F g(-1), and good retention after 2500 cycles, as well as promising electrocatalytic water splitting performance.
Article
Materials Science, Multidisciplinary
Anupam Jana, Sophia Sahoo, Sourav Chowdhury, Arup Kumar Mandal, Santosh Bimli, Rupesh S. Devan, R. J. Choudhary, D. M. Phase, A. K. Raychaudhuri
Summary: The electronic structure of pulsed laser deposited LaNixV1-xO3 thin films at room temperature has been studied. The shift of the Ni 3d-O 2p hybridized band in Ni-doped LaVO3 films indicates a change in charge transfer energy in the system.
Article
Chemistry, Multidisciplinary
Fillip Kumar Sarkar, Sushmita Gajurel, Lenida Kyndiah, Rajib Sarkar, Rupesh S. Devan, Amarta Kumar Pal
Summary: A palladium-containing metal-organic framework catalyst was designed for the C-H functionalization of unactivated arenes. The catalyst exhibited high activity in the reaction, with yields of the desired products ranging from 70-92% at room temperature. The mild reaction conditions, gram-scale synthesis, easy recovery, and reusability of the catalyst contribute to the sustainable advantages of the protocol.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Materials Science, Multidisciplinary
Vishesh Manjunath, Santosh Bimli, Parvez A. Shaikh, Satishchandra B. Ogale, Rupesh S. Devan
Summary: This review focuses on the functional significance and critical role of electron and hole transport layers in perovskite solar cells, aiming to optimize their performance and enhance the understanding of charge transport at the active interfaces.
JOURNAL OF MATERIALS CHEMISTRY C
(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)
