Article
Chemistry, Physical
Haolin Li, Jianwei Ding, Shuangfei Cai, Wei Zhang, Xining Zhang, Ting Wu, Chen Wang, Morten Foss, Rong Yang
Summary: This study fabricates noble metal-semiconductor hybrid Au/ZnO nanowires photocatalysts and characterizes them comprehensively. Compared with ZnO nanowires, Au/ZnO heterostructures exhibit significantly enhanced photocatalytic performance, providing a feasible strategy to prepare plasmonic photocatalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yufu Zhu, Jiaying Yan, Lei Zhou, Liangdong Feng
Summary: This paper demonstrates the synthesis of rhombic ZnO microrods surrounded by ZnO nanorods on zinc foils using a hydrothermal method. Photocatalytic degradation of Rhodamine B solution was employed to evaluate the photocatalytic performance of the fabricated samples. The hierarchical micro/nanostructures formed by ZnO nanorods surrounding the surfaces of rhombic ZnO microrods exhibited superior photocatalytic performance compared to rhombic Zn(OH)F and ZnO microrods. The enhanced performance can be attributed to the larger surface area of the hierarchical ZnO micro/nanostructures. Additionally, the ZnO nanorods grown on the rhombic ZnO microrods demonstrated recyclability and relatively stable photocatalytic performance.
Article
Chemistry, Multidisciplinary
Hyewon Shim, Yunjeong Hwang, Sung Gu Kang, Naechul Shin
Summary: In this study, we demonstrate the growth of lead iodide nanowires with van der Waals layered crystal structure using Sn-assisted VLS, followed by conversion into methylammonium lead iodide perovskites. The VLS-grown PbI2 nanowires showed two major growth orientations and differences in sidewall morphologies were correlated with perovskite conversion. The ability to control crystal structures of PbI2 nanowires via VLS technique is critical for the subsequent conversion process into perovskite nanostructures.
Article
Chemistry, Multidisciplinary
Afifah Salma Giasari, Anissya Putri Maharani Muharam, Anung Syampurwadi, Diana Rakhmawaty Eddy, Indah Primadona
Summary: The morphological properties of ZnO nanostructures such as nanorods, nanowires, and nanotubes can significantly affect their photocatalytic performance. In this study, the physical properties (optical and shape) of different 1-D ZnO nanostructures were evaluated in relation to their photocatalytic efficiency. ZnO nanorods transformed into nanowires under reduced seeding precursor concentration and into nanotubes with prolonged incubation time. The highest photocatalytic efficiency was observed in ZnO nanotubes, followed by ZnO nanowires and nanorods. The enhanced efficiency of ZnO nanotubes was attributed to their large polar face, high UV absorption, and large photocurrent density.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
Pierre Gaffuri, Tatjana Dedova, Estelle Appert, Mati Danilson, Adrien Baillard, Odette Chaix-Pluchery, Frank Guell, Ilona Oja-Acik, Vincent Consonni
Summary: Water pollution is a major ecological threat, and ZnO nanowires are being developed for heterogeneous photocatalysis as a solution. The addition of Al and Ga dopants, as well as thermal annealing, have been found to enhance the photocatalytic activity of ZnO nanowires, with the activity depending on the nature of the dopants.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
S. H. Mohamed, M. A. Awad, Mohamed Shaban
Summary: In this study, ZnS-ZnO hybrid nanowires were successfully synthesized using vapor transport synthesis method. The structure, morphology, optical properties, photoluminescence, and thermogravimetric analysis of the nanowires were investigated. The results showed that the hybrid nanowires had stable properties and exhibited promising photoluminescent features, making them potentially useful in optoelectronic devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Dephan Pinheiro, Ajay Jose, N. Rajiv Bharadwaj, U. C. Jadan Resnik Jaleel, K. R. Sunaja Devi
Summary: Hierarchical nanostructures of ZnO with different morphologies were successfully synthesized through various methods, and the nanorods prepared by the hydrothermal method exhibited the best catalytic activity in dye degradation studies.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Ales Omerzu, Robert Peter, Daria Jardas, Iztok Turel, Kresimir Salamon, Matejka Podlogar, Damjan Vengust, Ivana Jelovica Badovinac, Ivna Kavre Piltaver, Mladen Petravic
Summary: The study demonstrated a significant enhancement in the photocatalytic activity of thin ZnO films grown by PE-ALD method compared to those grown by the thermal ALD method. Various structural and optical experimental techniques were employed to analyze the physical origin of this difference.
SURFACES AND INTERFACES
(2021)
Article
Environmental Sciences
Yuyang Li, Jian Sun, Yihua Chen, Hang Ma, Jiaxin Zhu, Zhiqiang Chen, Liao Meng, Tongzhou Liu
Summary: A simple technique for fabricating TiO2 thin film photocatalyst was developed in this work. The fabricated photocatalyst featured a homogeneous nanowire layer grown in situ on the Ti plate. The photocatalytic activity of the fabricated TiO2 thin film photocatalyst showed efficient degradation of RhB and CBZ under UVC irradiation, and the degradation kinetics were affected by the pH and the presence of Cl-, SO42-, or NO3-.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Chang Cao, Bingqing Zhang, Shiwei Lin
Summary: Global environmental pollution and energy crisis have raised awareness for the development of environmentally friendly energy sources. ZnO photocatalysts play a key role in hydrogen generation from water splitting. However, the difficulty in preparing p-type ZnO limits its application. Doping of related elements into ZnO can introduce shallow acceptor energy levels and improve light absorption efficiency. P-type ZnO enables the construction of homojunctions and heterojunctions, enhancing photocatalytic water splitting performance. This Perspective discusses recent advances in the fabrication of p-type ZnO and highlights its benefits over n-type ZnO for photocatalytic applications.
Article
Chemistry, Physical
Shipra Choudhary, Kavita Sahu, Aditi Bisht, Biswarup Satpati, Satyabrata Mohapatra
Summary: ZnO nanowires and nanoplates with enhanced photocatalytic performance were successfully prepared via one-step thermal decomposition of zinc acetate dihydrate. The increase in thermal decomposition temperature led to the formation of ZnO nanoparticles and nanorods. The ZnO nanostructures exhibited a decrease in band gap and quenching of defect emissions with the increase in thermal decomposition temperature, resulting in significantly improved photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
O. E. Cigarroa-Mayorga
Summary: In this study, electrodeposition technique was used to fabricate ZnO film, ZnO microrods, and ZnO nanowires array decorated with Fe2O3 nanoparticles. The ZnO-Fe2O3 heterostructure exhibited enhanced photocatalytic activity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Libo Wang, Haiyan Tan, Liuyang Zhang, Bei Cheng, Jiaguo Yu
Summary: In this study, a composite material was developed by in-situ deposition of few-layer graphene on the surface of ZnO, leading to enhanced photocatalytic CO2 reduction performance. The improvement was attributed to the intimate interfacial contact and Schottky junction between ZnO and graphene, as well as the photothermal effect of graphene and pi-pi conjugation interaction with CO2 molecules. This work not only provides a feasible method for the in-situ growth of graphene, but also presents an efficient photocatalyst for CO2 reduction.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Marco Rossi, Ghada Badawy, Zhi-Yuan Zhang, Guang Yang, Guo-An Li, Jia-Yu Shi, Roy L. M. Op Het Veld, Sasa Gazibegovic, Lu Li, Jie Shen, Marcel A. Verheijen, Erik P. A. M. Bakkers
Summary: This paper presents a method for synthesizing free-standing InSb nanostructures on mismatched substrates and investigates their properties. The morphology of the nanostructures depends on the relative arrangement of two nanowires, with type I and type II nanostructures exhibiting promising transport properties for quantum devices. This platform can be used to selectively deposit superconductors and fabricate InSb-superconductor hybrid devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Daiane Fernandes, Cristiane W. Raubach, Pedro L. G. Jardim, Mario L. Moreira, Sergio S. Cava
Summary: A method of obtaining sodium niobate nanowires in a shorter time using microwave-assisted hydrothermal method followed by calcination was proposed. The obtained Perovskite showed improved crystallinity and band gap after heat treatment, resulting in enhanced photocatalytic performance with a high degradation rate of RhB reaching around 99.21%.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Kousik Bhunia, Santimoy Khilari, Moumita Chandra, Debabrata Pradhan, Sang-Jae Kim
Summary: In this study, nickel oxide nanoparticles/g-C3N4 nanocomposites were synthesized using a facile impregnation method, and they exhibited excellent oxygen evolution reaction (OER) activity. The optimal loading of NiO, which was approximately 30%, achieved high OER performance and durability at a 360 mV overpotential.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
I. B. Khadka, N. R. Alluri, M. M. Alsardia, N. P. M. Joseph Raj, A. P. S. Prasanna, Bakhtiar Ul Haq, S. J. Kim, Se-Hun Kim
Summary: Metal-graphene-metal UV-Visible photodetectors fabricated on quasifreestanding graphene (QFSG)/ vicinal SiC wafers demonstrate effective photoresponse and can be enhanced by localized surface plasmon resonance using gold nanoparticles. This device shows potential for low-power consumption UV-Visible detection.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Alekhika Tripathy, Nirmal Prashanth Maria Joseph Raj, Balasubramaniam Saravanakumar, Sang-Jae Kim, Ananthakumar Ramadoss
Summary: In this study, BFO piezoceramics were synthesized using a simple hydrothermal method and incorporated into flexible nanocomposite films. Results showed that the addition of BFO nanoparticles improved the piezoelectric performance of the films, and corona poling further enhanced their properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Green & Sustainable Science & Technology
Keyru Serbara Bejigo, Subramanian Natarajan, Kousik Bhunia, Vijayakumar Elumalai, Sang-Jae Kim
Summary: Environmentally friendly technology for recycling spent lithium-ion battery (LIB) electrodes was developed to explore the efficiency of regenerated electrocatalysts for electrochemical oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR). The process involved lixiviation of LixCoO2 electrodes using tartaric acid and H2O2, conversion of graphite into graphene oxide (GO), and regeneration of cobalt oxide-supported reduced graphene oxide (Co3O4/rGO). The regenerated composite material exhibited good activity for ORR and MOR, indicating the potential utilization of end-of-life LIBs as high-performance electrocatalysts in energy conversion devices.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Arunprasath Sathyaseelan, Vijayakumar Elumalai, Karthikeyan Krishnamoorthy, Aparna Sajeev, Sang-Jae Kim
Summary: A sphere-like PdNi alloy (sPdNiA) was developed to enhance the electrocatalytic activity of the catalysts for the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) in direct methanol fuel cells.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Roshan M. Bhattarai, Kisan Chhetri, Nghia Le, Debendra Acharya, Shirjana Saud, Mai Cao Hoang Phuong Lan Nguyen, Sang Jae Kim, Young Sun Mok
Summary: In this study, Ni-Co-C-N composite alloys (NiCCZ) derived from metal-organic framework (MOF) were embedded inside carbon cloth (CC) strands to achieve ultrastable energy storage and conversion applications. The NiCCZ was then modified with oxygen to create a flower-like metal hydroxysulfide structure (NiCCZOS), which demonstrated excellent capacity as a supercapacitor electrode. When paired with nitrogen-rich activated carbon, the resulting asymmetric supercapacitor device showed impressive capacity retention and energy density. Furthermore, the same electrode exhibited excellent performance as a bifunctional water-splitting electrocatalyst. This unique metal chalcogenide composite electrode/substrate configuration is proposed as a highly stable material for flexible energy storage and conversion applications.
Article
Chemistry, Applied
Keyru Serbara Bejigo, Kousik Bhunia, Jungho Kim, Chaehyeon Lee, Seoin Back, Sang -Jae Kim
Summary: Recycling spent lithium-ion batteries (SLIBs) is crucial for environmental preservation and resource reclamation. This study proposes a safe hydrometallurgical process to recover usable metallic cobalt from depleted LiCoO2 batteries and convert it to graphene oxide. The method also demonstrates excellent performance in direct methanol fuel cells.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Swapnil Shital Nardekar, Sang-Jae Kim
Summary: Soft robotics has advanced rapidly in recent years, creating new possibilities for industrial and biomedical applications. However, its usage has been restricted to locomotion and actuation due to the lack of a suitable charge storage system for supporting the robot's sensory network in challenging conditions. This study presents an ultra-flexible, lightweight, and wirelessly rechargeable micro-supercapacitor as an onboard power source for miniaturized soft robots, enabling various sensory functionalities.
Article
Engineering, Electrical & Electronic
Alekhika Tripathy, Nirmal Prashanth Maria Joseph Raj, Sang Jae Kim, Ananthakumar Ramadoss
Summary: Ecofriendly, reliable, and high-performance piezoelectric materials, such as potassium sodium niobate (KNN), are being studied as alternatives to fossil fuel energy to resolve environmental issues. In this study, the piezoelectric performance of KNN incorporated in poly(vinylidene fluoride) (PVDF) and its copolymers, PVDF-TrFE and PVDF-HFP, was compared. The results showed that the nanocomposite film with 8 wt % KNN filler in PVDF-TrFE exhibited the highest piezoelectric performance and voltage output among the different composites.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Raaju Sundhar Arul Saravanan, Keyru Serbara Bejigo, Sang-Jae Kim
Summary: Nanomaterials are being explored as potential cathode materials in mainstream lithium-ion batteries, but research is still in the early stages. The synthesis of transition metal oxide nanomaterials and their performance as cathodes in Li-ion batteries are discussed in this review. The aim is to provide researchers with an understanding of the current challenges and opportunities in working with nanomaterials for next-generation batteries.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Energy & Fuels
Charanya Sukumaran, Sayyid Abdul Basith, Venkateswaran Vivekananthan, Sang-Jae Kim, Arunkumar Chandrasekhar
Summary: This article presents groundbreaking research on wearable triboelectric nanogenerators (TENGs) and their applications in flexible electronics and wearable devices. It introduces a novel silicone elastomer-based TENG and showcases innovative applications such as wearable sensors, touch keypads, and emergency alarm systems. This research highlights the potential of TENGs in energy harvesting, human-machine interfaces, and personal safety.
Article
Chemistry, Physical
Zahir Abbas, Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nissar Hussain, Sang-Jae Kim, Shaikh M. Mobin
Summary: Enhancing the output performance of triboelectric nanogenerators (TENGs) can be achieved by designing materials with high triboelectric properties as active fillers. In this study, a Cd-MOF was synthesized as a filler to improve the performance of the TENG device. The Cd-MOF was incorporated with PDMS to construct a MOF/PDMS film and used for TENG study. The MOF-TENG device generated a maximum output power density of 0.124 W m-2 and was used to control mouse movement via finger movements.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Arunprasath Sathyaseelan, Karthikeyan Krishnamoorthy, Parthiban Pazhamalai, Noor Ul Haq Liyakath Ali, Sang-Jae Kim
Summary: This study demonstrates the use of liquid phase exfoliated 2D boron nanosheets as an efficient non-noble electrocatalyst in water electrolysis, with enhanced electrocatalytic activity and stability. Physico-chemical studies show that the exfoliation of boron nanosheets increases their surface area and edge interfaces, leading to improved electrocatalytic performance. The study also highlights the advantages of hybrid electrolyzers, achieving more efficient electrosynthesis of formate and hydrogen by reducing the voltage.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Aparna Sajeev, Karthikeyan Krishnamoorthy, Parthiban Pazhamalai, Kousik Bhunia, Arunprasath Sathyaseelan, Sang-Jae Kim
Summary: Efficient water-splitting devices are crucial for sustainable hydrogen production and achieving carbon neutrality. This study investigates the use of tin as a bifunctional catalyst in a hybrid water electrolyzer, replacing the sluggish oxygen evolution reaction with the more feasible methanol oxidation reaction. The results show that the 3D Sn/NF catalyst exhibits excellent performance in hydrogen evolution, oxygen evolution, and methanol oxidation, paving the way for the development of monometallic catalysts for future electrochemical energy conversion devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Arunprasath Sathyaseelan, Karthikeyan Krishnamoorthy, Parthiban Pazhamalai, Noor Ul Haq Liyakath Ali, Sang-Jae Kim
Summary: This paper investigates the use of liquid phase exfoliated 2D boron nanosheets as efficient non-noble electrocatalysts for water electrolyzers. The physical and chemical studies show that the exfoliation of boron sheets increases surface and edge interfaces, enhancing the electrocatalytic activity for hydrogen evolution reaction, oxygen evolution reaction and methanol oxidation reaction. In a hybrid water electrolyzer, the use of 2D boron nanosheets leads to lower voltage and efficient green hydrogen production.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
