Article
Materials Science, Composites
Shuzhen Zhou, Xinxin Jin, Jingyi Hao, Mengjie Zhou, Xiaoguang Qiao, Xinchang Pang
Summary: The study presents a novel method for preparing LS-based superparamagnetic CNCs through electrostatic interaction and multistep surface modification. The protection of LS and blockage of CTAB led to well-dispersed individual gamma-Fe2O3 nanocrystals and a superparamagnetic property in CNCs. Moreover, LS-based CNCs exhibited excellent dye adsorption efficiency towards cationic dyes.
COMPOSITES COMMUNICATIONS
(2021)
Review
Chemistry, Physical
Dongzhi Zhang, Mengyu Wang, Mingcong Tang, Xiaoshuang Song, Xixi Zhang, Zhanjia Kang, Xiaohua Liu, Jianhua Zhang, Qingzhong Xue
Summary: Humidity sensors are important in various fields. This paper summarizes diversiform humidity sensors with different sensing mechanisms and versatile nanomaterials for constructing humidity sensors. The latest progress in wearable and flexible humidity sensors and self-powered humidity sensors is summarized, and the diverse applications of humidity sensors in fields such as human health care and non-contact switches are demonstrated. The challenges and prospects of nanomaterials-based humidity sensors are also discussed.
Article
Chemistry, Analytical
A. S. Chizhov, M. N. Rumyantseva, K. A. Drozdov, I. Krylov, M. Batuk, J. Hadermann, D. G. Filatova, N. O. Khmelevsky, V. F. Kozlovsky, L. N. Maltseva, A. M. Gaskov
Summary: This study synthesized a ZnO/CsPbBr3 nanocomposite, showing enhanced photoresponse to different gases under light illumination and sensor response, with better performance compared to pure ZnO, and a distinct sensor response to NO2 within a temperature range.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Kaustuv Das, Bijoy Jana, Mousumi Pramanik, Mintu Mallick, Jayati Das, Joydip Sengupta
Summary: ZnO nanocrystals were synthesized and used as ethylene sensors in this study. The ZnO nanocrystal-based sensor demonstrated good response at room temperature and relative humidity, showing potential as a low-cost and efficient ethylene gas sensor.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Georges Dubourg, Marko Radovic, Borislav Vasic
Summary: This study demonstrated that laser processing can effectively reduce the cross-sensitivity to water vapor in ZnO-based sensors printed on paper, enhancing UV sensitivity and paving the way for low-cost and sophisticated paper-based sensors.
Article
Chemistry, Analytical
Asad Ullah, Muhammad Hamza Zulfiqar, Muhammad Atif Khan, Muhammad Ali, Muhammad Zubair, Muhammad Qasim Mehmood, Yehia Massoud
Summary: This study presents a low-cost, flexible, easy-to-fabricate, and eco-friendly humidity sensor made from copper tape and tissue paper. The sensor exhibits high sensitivity, better response and recovery times, stability, and repeatability. It shows a linear response to relative humidity and maintains stability at different temperatures. The sensor has potential applications in various fields.
Article
Biochemistry & Molecular Biology
Hiroki Ito, Daisuke Yoshioka, Morihiko Hamada, Tsubasa Okamoto, Yasuhiro Kobori, Yoichi Kobayashi
Summary: This study demonstrates the solid-state photochromic reactions of zinc oxide nanocrystals (NCs) in the visible to mid-infrared regions even under humid-air conditions. The reactions are mainly attributed to charge separation induced by water molecules adsorbed on the surface of NCs, as well as the deceleration of reactions involving the electrons in the conduction band with molecular oxygen and adsorbed water molecules.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Anderson Luis do Valle, Anielle Christine Almeida Silva, Francielli C. C. Melo, Guilherme de L. Fernandes, Guedmiller Souza de Oliveira, Noelio Oliveira Dantas, Luciano Pereira Rodrigues, Luiz Ricardo Goulart Filho
Summary: This study investigated the interaction between the herbicide glyphosate and zinc oxide nanocrystals under controlled pH conditions. Changes in pH were found to affect the conformational changes of glyphosate and the crystal structures of the nanocrystals. Adjusting pH levels can improve the accuracy of glyphosate quantification and change the identification method.
IEEE SENSORS JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Zachary M. Sherman, Allison M. Green, Michael P. Howard, Eric Anslyn, Thomas M. Truskett, Delia J. Milliron
Summary: The assembly of tunable nanocrystal gels using reversible chemical bonding and polymer-induced depletion attractions shows promise for creating functional materials with controllable properties, although challenges exist in translating principles to the nanoscale. The control of structure and properties at both microscopic and macroscopic levels is key in guiding the reversible assembly of nanocrystal gels. Insights from statistical thermodynamic theory and computer simulation have helped in predicting conditions for gelation and optimizing experimental parameters for targeted functionalities.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Meng-Xiao Chong, Cheng-Tao Li, Le-Xi Zhang, Li-Jian Bie
Summary: A lead-free halide perovskite Cs2TeCl6 sensor with high humidity sensing performance, including ultra-high response value (1.59 x 106) and fast response time (1 s), was synthesized and discussed. It also demonstrates good reliability and long-term stability in the operating range of relative humidity (RH) from 11% to 97%. This work provides guidance for the application of lead-free halide perovskites in electronic sensory devices.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Dandan Lei, Qixiang Zhang, Nishuang Liu, Tuoyi Su, Luoxin Wang, Ziqi Ren, Zhi Zhang, Jun Su, Yihua Gao
Summary: A self-powered potentiometric humidity-transduction mechanism was reported, leading to the development of a highly adjustable humidity sensor with fast response, ultra-high response, and excellent stability. Unlike traditional mechanisms, this manipulation mechanism requires no additional power unit and has ultra-low power consumption.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Jonathan De Roo
Summary: This article provides a perspective from a nanochemist on the field of colloidal nanocrystals, with a specific focus on nanocrystal synthesis. It discusses the chemistry involved with precursors, ligands, and solvents, as well as different crystallization mechanisms. The article also addresses the need for standard reporting practices in the field and encourages researchers to consider chemical equations and reaction by-products.
CHEMISTRY OF MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Namyoung Ahn, Cleiment Livache, Valerio Pinchetti, Victor I. Klimov
Summary: Lasers and optical amplifiers based on solution-processable materials, including colloidal quantum dots, have been highly sought-after for their compatibility, scalability, and ease of integration. Recent advances in colloidal nanocrystal lasing devices have shown promising progress towards the development of viable devices.
Article
Chemistry, Multidisciplinary
Pillalamarri Srikrishnarka, Raaga Madhuri Dasi, Sourav Kanti Jana, Tripti Ahuja, Jenifer Shantha Kumar, Ankit Nagar, Amoghavarsha Ramachandra Kini, Boby George, Thalappil Pradeep
Summary: A frugal humidity sensor has been developed to detect changes in the humidity of exhaled breath. The sensor is made using a cloth as a substrate, with a humidity-sensitive conducting polymer formed on it. Screen-printed silver electrodes and conducting threads connect the sensor to the measurement circuit. The sensor's response time allows for differentiation between fast, normal, and slow breathing. An Android-based mobile application and time series classification algorithm have been used for data collection and analysis. The sensor has also been integrated into a face mask to create a smart mask for monitoring breathing patterns.
Review
Chemistry, Multidisciplinary
Concetta Nobile, Pantaleo Davide Cozzoli
Summary: Composite inorganic nanoarchitectures, fabricated through wet-chemical synthetic techniques, offer advanced functionalities due to the coexistence and synergistic interactions among different materials. The design and synthesis of these structures have been extensively studied, leading to the development of new nanomaterials with unique properties and wide-ranging applications.
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)