Article
Materials Science, Multidisciplinary
Sun Kyung Hwang, Ik Jae Park, Se Won Seo, Jae Hyun Park, So Jeong Park, Jin Young Kim
Summary: We demonstrate an efficient monolithic two-terminal perovskite/CZTSSe tandem solar cell by reducing the surface roughness of the electrochemically deposited CZTSSe bottom cell. The perovskite top cell with a bandgap of 1.65 eV is prepared on the flattened CZTSSe bottom cell, resulting in efficient perovskite/CZTSSe tandem solar cells. The best performing tandem device exhibits a high conversion efficiency of 17.5% without the hysteresis effect.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Mohammad H. BinSabt, Ahmed Galal, Ahmed Abdel Nazeer
Summary: Beta-Ni(OH)(2) and beta-Ni(OH)(2)/graphene oxide (GO) were prepared on an Ni foil electrode using the electrochemical cyclic voltammetry in 0.5 M KOH solution. Surface analyses such as XPS, XRD, and Raman spectroscopies confirmed the chemical structure and SEM and AFM determined the morphologies. The addition of GO layer significantly increased the specific capacitance of the hybrid. The supercapacitor exhibited high stability even after 500 cycles without reduction in capacitance values.
Article
Chemistry, Physical
Hassan Zare Asl, Seyed Mohammad Rozati
Summary: CuO:In2O3 nanocomposite thin films were successfully prepared by adding different weight percentages of indium chloride. The addition of In2O3 considerably improved the conductivity and electrochemical performance of the films, but excessive growth of In2O3 could limit ion storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Yu Zhou, Shaopeng Rong, Huifang Xie, Yanfang Feng, Danni Ding, Weijiang He, Nan Zhang, Jingling Lu
Summary: In this study, the acidic sites of layered MnO2 were regulated to improve its selective catalytic oxidation (SCO) performance towards NH3. The resulting MnO2 achieved complete conversion of NH3 at lower temperatures (100 degrees C) than reported noble-metal catalysts. The increase in active oxygen species and enhancement of acidic sites facilitated the adsorption and activation of NH3. This research reveals the functional role of acidic sites in NH3-SCO and provides insight for the rational design of catalysts with excellent N2 selectivity and low-temperature NH3-SCO activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Pankyu Sang, Jung Hyeun Kim
Summary: In this study, a CdS nanorod layer was synthesised on an electrochemically deposited Fe2O3 thin film, forming a type-II heterojunction for enhancing photoelectrochemical performance. The Fe2O3/CdS composite photoanode system exhibited improved photocurrent density, conversion efficiency, electron lifetime, charge transfer resistance, optical absorbance, and stability compared to Fe2O3 and CdS only samples. The addition of Fe2O3 component narrowed the optical band gap of the composite system, indicating its significant role in charge transfer through the CdS nanorod layer.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Kunda Siri Kiran Janardhana Reddy, L. P. Pavithra Chokkakula, Suhash Ranjan Dey
Summary: After electrodeposition, galvanic displacement reactions were observed on the FeCoNiCuZn nanocrystalline HEA alloy system, which consisted of elements with significant differences in melting points and reduction potentials, when the film was held back in the electrolyte. This phenomenon leads to preferential deposition of the noble elements and gradual change in composition at open circuit potential. The deposition of Cu from the electrolyte caused displacement of Zn > Fe similar to Co > Ni from the electrodeposited alloy. This is the first observational report of galvanic displacement in HEAs composed of five elements.
Article
Environmental Sciences
Mangesh A. Desai, Amol S. Vedpathak, Abhishek R. Bhapkar, Ganesh D. Saratale, Shrikrishna D. Sartale
Summary: The study demonstrates a novel method for the growth of highly adherent and compact Mn3O4 thin films using the SILAR method, which can be successfully converted into MnO2 after chemical treatment. Both electrochemical and chemical conversion processes show significantly improved supercapacitive performance, making them useful for recycling battery waste for supercapacitor applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Electrochemistry
Vitalii Latyshev, Serhii Vorobiov, Renata Bodnarova, Oleg Shylenko, Maksym Lisnichuk, Alexandra Kovalcikova, Maros Gregor, Vladimir Komanicky
Summary: This study presents the preparation of catalysts based on IrRe-IrOx with record high mass activity for oxygen evolution reaction (OER). The optimal composition of Ir39Re61, high surface area, low catalyst loading, and the presence of amorphous IrOx contribute to the high OER activity of the catalyst.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Gege He, Yang Wen, Chen Ma, Liqun Wang, Lumei Gao, Zhanbo Sun
Summary: A novel composite material CoFe2O4 @MnO2 was prepared by dealloying Al91Co3Fe6 ribbons followed by a calcination step and a hydrothermal reaction. The thin-walled honeycombed MnO2 growth on mesoporous CoFe2O4 nanosheets is the key to synthetize CoFe2O4 @MnO2. The composite material exhibited a high sensitivity of 1362.83 mu A.mM(-1).cm(-2) as a glucose detection electrode, along with remarkable long-term stability and a low detection limit of 1.32 mu M.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Electrical & Electronic
Mohd. Shkir, Thamraa Alshahrani
Summary: Pure and Yttrium (Y) doped Bi2S3 thin films were synthesized using a simple and low-cost nebulizer spray pyrolysis (NPS) method. XRD analysis confirmed the orthorhombic Bi2S3 crystal structure with a dominant (130) plane orientation. XPS analysis revealed the presence of Bi, S, and Y elements in the Bi2S3:Y1% sample. Photoluminescence and UV-Vis measurements indicated enhanced emission intensity, absorption capacity, and decreased optical band gap for the 1% Y doped Bi2S3 thin film, making it suitable for photo-sensing applications. Photo-sensing experiments demonstrated high responsivity, detectivity, and external quantum efficiency values for the 1% Y doped Bi2S3 thin film. Overall, this study highlights the potential of the 1% Y doped Bi2S3 thin film as a future photo-sensing device.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Optics
Sahana Nagappa Moger, Pawan Kumar, Gowrish K. Rao, M. G. Mahesha
Summary: CdS films were deposited on glass substrates using thermal evaporation method at room temperature. The effect of air annealing on the structural, optical, and electrical properties of the films was investigated. It was found that annealing improved the film's structure and electrical properties, making it suitable for visible range photodetectors.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Characterization & Testing
Joachim E. Hoffmann, Vrushali Pawar, Dietmar Eifler, Tina Eyrisch, Torsten Hielscher, Monika Saumer, Patrick Klaer, Martin-Tobias Schmitt, Peter Starke
Summary: This study investigates the surface states of electrochemically deposited nanocrystalline nickel-iron thin strips after grinding. The cutting depth and grinding process have an impact on the microstructures and residual stresses on the surfaces. Grinding induces cold plastic deformation and thermoplastic deformation, resulting in changes in residual stresses on the surface.
Article
Optics
L. Imosobomeh Ikhioya, C. Agnes Nkele, N. Donald Okoli
Summary: Zinc selenide materials doped with zirconium were successfully synthesized by electrochemical deposition and characterized using various techniques. The synthesized films showed nanoclusters and crystalline features, along with high absorbance and electrical conductivity. The materials have potential applications in optical and photovoltaic devices.
Article
Materials Science, Multidisciplinary
B. C. N. Obitte, I. L. Ikhioya, G. M. Whyte, U. K. Chime, B. A. Ezekoye, A. B. C. Ekwealor, M. Maaza, Fabian Ezema
Summary: This study investigates the effects of doping and deposition temperature on the properties of erbium doped zinc selenide thin films. The results show that both doping concentration and deposition temperature have an impact on the crystal structure, morphology, optical, and electrical properties. This research is important for the development of solar cells.
Article
Chemistry, Inorganic & Nuclear
Krishnendu Bera, Arun Karmakar, Kannimuthu Karthick, Selvasundarasekar Sam Sankar, Sangeetha Kumaravel, Ragunath Madhu, Subrata Kundu
Summary: Developing a low-cost transition metal-based catalyst for water splitting is crucial for producing green hydrogen on an industrial scale. In this study, Ni-doped MnO2 showed improved OER properties in 0.1 M KOH solution, with lower overpotential compared to bare MnO2. Incorporation of nickel ions into the MnO2 lattices facilitated electron transfer and structural disorder, enhancing the OER performance of the materials.
INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Gourab Bhattacharjee, Sumit Majumder, Dulal Senapati, Sangam Banerjee, Biswarup Satpati
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Analytical
Vidhya Subramanian, Sangjun Lee, Sanjoy Jena, Sourav Kanti Jana, Debdutta Ray, Sung Jae Kim, Pradeep Thalappil
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Multidisciplinary
Swathy Jakka Ravindran, Shantha Kumar Jenifer, Jayashree Balasubramanyam, Sourav Kanti Jana, Subramanian Krishnakumar, Sailaja Elchuri, Ligy Philip, Thalappil Pradeep
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Biochemical Research Methods
Pallab Basuri, Subhashree Das, Shantha Kumar Jenifer, Sourav Kanti Jana, Thalappil Pradeep
Summary: MISI is a method that involves the impact of microdroplets produced from a paper and their impact on another, leading to the ionization of analytes. This method performs reactions and ionization simultaneously without the need for high voltage directly applied on the sample, and it can be used for detecting small molecules and proteins. Multiple cascaded spray sources can be assembled in series, providing a way to understand chemical reactions by droplet impact and demonstrating noninvasive discrimination of bacteria samples under ambient conditions.
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
(2021)
Article
Chemistry, Multidisciplinary
Md Rabiul Islam, Soujit Sen Gupta, Sourav Kanti Jana, Pillalamarri Srikrishnarka, Biswajit Mondal, Sudhakar Chennu, Tripti Ahuja, Amrita Chakraborty, Thalappil Pradeep
Summary: CDI technology utilizes functionalized rGO-PS electrodes and EAIER to achieve efficient deionization. These novel electrodes exhibit high electroadsorption capacity and excellent stability.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Pallab Basuri, Sourav Kanti Jana, Biswajit Mondal, Tripti Ahuja, Keerthana Unni, Md Rabiul Islam, Subhashree Das, Jaydeb Chakrabarti, Thalappil Pradeep
Summary: The study demonstrates a novel method of generating current using nanostructures, based on the ionic dissociation-induced electrokinetic effect at the liquid-solid interface. By flowing protic solvents over a 2D-MoS2-coated surface, the generation of continuous ionization for mass spectrometry is achieved, while also showing potential for a self-energized breath alcohol sensor.
Article
Materials Science, Multidisciplinary
Amrita Datta, Mantu Modak, Pralay Paul, Manju Mishra Patidar, T. V. Chandrasekhar Rao, V. Ganesan, Sangam Banerjee
Summary: The study reveals that the compound Cr2CoAl exhibits soft magnetic properties with low magnetic moment below 20.5K, and may contain magnetic clusters. Additionally, the compound shows a paramagnetic to short-range ordered ferromagnetic transition around 20.5K, increasing resistivity with temperature, and T-2 dependency in resistivity at low temperatures.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Multidisciplinary Sciences
Md Rabiul Islam, Soujit Sen Gupta, Sourav Kanti Jana, Thalappil Pradeep
Summary: Capacitive deionization (CDI) is an efficient desalination technology that can remove ionic contaminants and toxic species, including heavy metal ions.
Article
Nanoscience & Nanotechnology
Sourav Kanti Jana, Kamalesh Chaudhari, Md Rabiul Islam, Ganapati Natarajan, Tripti Ahuja, Anirban Som, Ganesan Paramasivam, Addanki Raghavendra, Chennu Sudhakar, Thalappil Pradeep
Summary: This study presents a biomimetic electrode using electrochemically reduced graphene oxide (ERGO) for selective and sensitive detection of arsenic in field water samples. Raman and FTIR spectroscopies were used to understand the mechanism of selectivity and sensitivity. The ion selectivity depends on both structural and electronic factors.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ankit Nagar, Md Rabiul Islam, Kartheek Joshua, Tanvi Gupte, Sourav Kanti Jana, Sujan Manna, Tiju Thomas, Thalappil Pradeep
Summary: Researchers have developed a macroscopic reverse electrodialysis (RED) system that utilizes selective ion transport across charged nanochannels to harness the Gibbs free energy difference between seawater and river water. The system employs cation-selective and anion-selective membranes composed of reduced graphene oxide (rGO) nanosheets decorated with TiO2 nanoparticles. The membranes exhibit excellent ion transport properties and high power densities under artificial salinity gradients.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
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.
Article
Materials Science, Multidisciplinary
Anagha Jose, Arijit Jana, Tanvi Gupte, Akhil S. Nair, Keerthana Unni, Ankit Nagar, Amoghavarsha R. Kini, B. K. Spoorthi, Sourav Kanti Jana, Biswarup Pathak, Thalappil Pradeep
Summary: We successfully synthesized vertically aligned nanoplates of the [Co6S8DPPE6Cl6] cluster (Co6) using ambient electrospray deposition (ESD). These nanoplates demonstrate sensitive and selective electrochemical response toward arsenite at concentrations as low as 5 parts per billion. Our work sheds light on the preferential binding of arsenite with Co6, revealing a practical application of atomically precise clusters with societal relevance.
ACS MATERIALS LETTERS
(2023)
Proceedings Paper
Physics, Applied
Amrita Datta, Mantu Modak, Sangam Banerjee
3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER & APPLIED PHYSICS (ICC-2019)
(2020)
Proceedings Paper
Physics, Applied
Amrita Datta, Mantu Modak, Mily Kundu, Sangam Banerjee
DAE SOLID STATE PHYSICS SYMPOSIUM 2018
(2019)
Article
Nanoscience & Nanotechnology
Abhijit Roy, Shib Shankar Singha, Sumit Majumder, Achintya Singha, Sangam Banerjee, Biswarup Satpati
ACS APPLIED NANO MATERIALS
(2019)
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)
