Article
Optics
Gaurav Kumar Yogesh, E. P. Shuaib, A. Kalai Priya, P. Rohini, Sathyan Vivekanand Anandhan, Uma Maheswari Krishnan, V Kalyanavalli, Shivam Shukla, D. Sastikumar
Summary: A post-ablation method was used to obtain water-soluble fluorescent carbon nanoparticles, which showed the creation of emissive defects on the surface under laser ablation in ethanol. The fluorescence of W-CNPs showed peak emission in the blue region and exhibited non-toxicity in vitro studies on human cardiomyocytes, suggesting their potential use as a fluorescent probe in bioimaging applications.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Rabi Kabir Ahmad, Shaharin Anwar Sulaiman, Suzana Yusup, Sharul Sham Dol, Muddasser Inayat, Hadiza Aminu Umar
Summary: This paper focuses on the characteristics of coconut shell biomass, including chemical structure, energy potential, and morphological analysis. The study finds that coconut shells have important qualities for charcoal production, such as high density, high calorific value, low moisture content, and ash. Additionally, coconut shells contain trace amounts of complex heavy metals and sulfur/nitrogen, making them suitable for thermochemical conversion without pre-treatment. With its carbon-rich and environmentally friendly properties, coconut shell biomass can be used as an alternative energy source.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Shuaib Edakkaparamban, Muhammed Shafi Parasseri, Gaurav Kumar Yogesh, Chandra Bose Arumugam, Sastikumar Dillibabu
Summary: This work proposed a nonenzymatic glucose sensor based on coconut shell charcoal modified nickel foil, showing good sensitivity, wide linear range, and low response to interfering biomolecules.
Article
Chemistry, Analytical
Weiran Zheng, Yong Li, Lawrence Yoon Suk Lee
Summary: Research has shown that low-toxic bismuth (Bi)-based nanomaterials can be used as non-toxic or low-toxic electrocatalysts for non-enzymatic electrochemical glucose sensing. Surfactant-free Bi nanoparticles (NPs) and transition metal (Ni and Co)-doped Bi NPs obtained through laser-ablation method demonstrated competitive performance and high selectivity towards glucose sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Polymer Science
Suraj Bhanushali, Darbha Sai Srivats, Princekumar Mishra, Aarti P. More
Summary: HDPE/LLDPE blends with varying ratios were designed. The ratio of 70:30 showed the best combination of tensile properties, melt flow index, and hardness properties. Composites were made with the addition of silica and the best performance was observed with 30% incorporation. Incorporating coconut shell charcoal improved the system's performance and utilized waste. The synergistic effect of silica and coconut shell charcoal in the HDPE-LLDPE blend was studied and found suitable for automotive applications.
IRANIAN POLYMER JOURNAL
(2023)
Article
Chemistry, Applied
Junmin Ji, Yaxin Zhang, Dan Wang, Yan Wang
Summary: This study investigates the application of coconut shell-based activated charcoal decorated with three different electronegativities of surfactants for removing PAHs from peanut oil. The results demonstrate that the modified activated charcoal effectively removes PAHs and preserves the nutritional quality and flavor of the peanut oil. This study highlights the effectiveness and feasibility of low-cost surfactant-modified coconut shell-based activated charcoal.
Article
Engineering, Chemical
Shareena Fairuz Abdul Mana, Abdullah Amru Indera Luthfi, Jamaliah Md Jahim, Shuhaida Harun, Jian Ping Tan, Siti Syazwani Mohd Shah
Summary: Acid hydrolysis pre-treatment of biomass produces harmful substances, which can be removed using coconut shell activated charcoal to improve the quality of hydrolysate for xylitol production. The study found that under optimal adsorption conditions, most of the harmful substances were removed and xylitol production was increased.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Multidisciplinary
Pei Zuo, Lan Jiang, Xin Li, MengYao Tian, YongJiu Yuan, WeiNa Han, Le Ma, LiFei Hu, ZhiCong He, Fang Li
Summary: In this work, MoS2 core-shell nanoparticles were prepared by liquid-phase processing of bulk MoS2 using a femtosecond laser. The core of the nanoparticles had incomplete and weak crystallinity, while the shell had high crystallinity. The formation mechanism involved laser ablation and light exfoliation. The core-shell nanoparticles exhibited high chemical activity for chemical catalysis.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Energy & Fuels
E. C. S. Paz, C. F. Paschoalato, M. G. Arruda, G. G. Silva, M. L. G. Santos, M. M. Pedroza, L. R. A. Oliveira
Summary: This study aims to obtain charcoal through pyrolysis of Cocos nucifera L. and investigate its properties and adsorption capacity for methylene blue removal. The results show that only temperature influences the charcoal yield, with the best yield at 500°C. The charcoal has uniform size and pores, which affect the adsorptive process of removing methylene blue.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Analytical
Jian-Lin Chen, Guo-Dong Liu, Wen-Shuai Feng, Man-Man Bu, Zhuo Zhu, Xiao-Hui Gao, Sheng-Xiang Huang, Lian-Wen Deng
Summary: The study fabricated a copper foam with surface oxidation and micro-nano structure using femtosecond laser ablation technique, which showed excellent electrochemical sensing performance for glucose due to its rough surface, unique electronic state, and oxygen defects. The sensitivity and detection limit of the laser-treated copper foam were determined to be 27.4517 mA cm(-2) mM(-1) and 1.5 mu M, respectively, demonstrating good selectivity in anti-interference experiments.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Multidisciplinary
Sella Ramadhani Alya Sasono, Mahardika F. Rois, W. Widiyastuti, Tantular Nurtono, Heru Setyawan
Summary: The effect of dispersed activated carbon derived from coconut shell charcoal on the supercapacitor performance of activated carbon nanofibers (ACNFs) was investigated. The highest surface area of 250.46 m2/g and a specific capacitance of 186.50 F/g were achieved using a blend of coconut shell charcoal and polyvinyl alcohol through electrospinning. These ACNFs with dispersed activated carbon hold promise as high-capacity, low-cost, and renewable energy storage materials.
RESULTS IN ENGINEERING
(2023)
Article
Chemistry, Analytical
Li Yang, Yonghai Song, Chunhua Lin, Linli Hou, Lulu Guo, You Lei, Li Wang
Summary: This study explores the preparation of core-shell SiO2@COFTFP-TAPB to improve the optical properties of COFTFP-TAPB and successfully apply it for the detection of glucose and urea. The core-shell structure effectively overcomes interlaminar accumulation and reaggregation of COFs, providing a feasible solution for their application in sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Physics, Applied
Ruslan Azizov, Ivan Sinev, Furkan Isik, Farzan Shabani, Anatoly Pushkarev, Iklim Yurdakul, Savas Delikanli, Hilmi Volkan Demir, Sergey Makarov
Summary: This study demonstrates a method of fabricating thin films by direct laser writing on CdSe/CdZnS NPLs. The period of the structures is designed using theoretical calculations to achieve high quality-factor optical modes. Photoluminescence enhancement and directional outcoupling effects were observed in the experiments.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Shuang Yang, Xianxian Sun, Shasha Wang, Yuanhao Ning, Ye Yuan, Weilong Yin, Yibin Li
Summary: Lightweight and low-cost carbon materials are considered promising microwave absorbing materials. This study introduces a high-quality microwave-absorbing nanocomposite made from coconut shell and magnetic material, which exhibits superior microwave absorption due to the synergy of dielectric-magnetic effect and enhanced interfacial polarization.
Article
Optics
Muhammad Sohail, Chunxiang Zhang, Rizwan Ahmed, Haroon Asghar, Sayed Ali Khan, Noor Zamin Khan, Tenghui Chen, M. Aslam. Baig, Zhenhong Wang
Summary: The carbon nanoparticles (CNPs) were used as a saturable absorber (SA) for Q-switching an erbium doped fiber laser (EDFL). The Q-switched EDFL emitted at a wavelength of 1566 nm with a spectral bandwidth of 1.72 nm. The CNPs-based SA exhibited good pulse stability and the pulse frequency and width could be controlled by varying the pump power. The experimental results showed that the CNPs-based SAs could be equivalent or even superior to commonly used nano-particle SAs and had potential applications in pulsed laser sources.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
K. Lakshmanamoorthy, S. Manivannan
Summary: Three different ionic liquids based on 1-butyl-3-methylimidazolium were prepared for synthesizing Ag/AgX-rGO nanocomposites, displaying excellent photocatalytic properties, with the samples containing Ag/AgX structures showing enhanced efficiency. The plasmonic silver in Ag/AgX-rGO samples increased sunlight utilization, while rGO facilitated rapid charge separation, resulting in higher dye degradation efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Multidisciplinary
A. Bismibanu, M. Alagar, I. B. Shameem Banu, Pradeep Reddy Vanga, Thangaraj Selvalakshmi, M. Ashok
Summary: A series of samples with Pr substituted at the Bi site of BiFeO3 were studied to analyze the impact of Pr concentration on the structural, magnetic, ferroelectric, electrical, morphological, and semiconducting properties. The study showed that higher Pr dopant improved the ferroelectric and magnetic properties.
BRAZILIAN JOURNAL OF PHYSICS
(2022)
Article
Spectroscopy
T. Pandiyarajan, R. Mangalaraja, B. Karthikeyan, R. Udayabhaskar, David Contreras, Selene Sepulveda-Guzman, M. A. Gracia-Pinilla
Summary: Rare earth doped ZnO nanostructures were prepared via wet chemical precipitation, showing morphological transitions and unique characteristics. XRD measurements revealed highly crystalline nature and no alteration in crystal structure by RE doping, while Raman spectra exhibited energy shifts and intensity variations. The enhanced photocatalytic activity and different decolorization efficiencies of MB were observed in RE doped ZnO compared to bare ZnO.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Energy & Fuels
Biny R. Wiston, Praveena Prabhakaran, M. Ashok
Summary: Attaining high specific energy and detaining the specific power achieved is a significant challenge in modern era supercapacitors. This study proposes a method of incorporating conductive iron (Fe) species with nickel hydroxide matrix to form a LDH structure, solving the challenge. The optimal composition exhibits excellent specific capacity and cycling performance, and is successfully applied in a symmetric supercapacitor, achieving high specific energy and specific power.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Green & Sustainable Science & Technology
S. Harinee, K. Muthukumar, R. A. James, M. Arulmozhi, H-U Dahms, M. Ashok
Summary: This study demonstrates that Sargassum muticum-mediated nanoparticles and their nanocomposites have photocatalytic and photoexcited antimicrobial properties, and they can combat drug-resistant superbugs and pathogenic bacteria, while also exhibiting efficient degradation of harmful dyes.
MATERIALS TODAY SUSTAINABILITY
(2022)
Review
Energy & Fuels
N. Rajeswari Yogamalar, Kalpana Sharma, P. Muhammed Shafi
Summary: This article is a review of carbon-based supercapacitors (CSCs), aiming to aid novice researchers in understanding the energy storage mechanisms, material components, and design principles of CSCs, as well as proposing new perspectives for future research.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Polymer Science
Jaya Gupta, Ajay Kumar, Ayan Roy, Anu, Deeksha, Pawanpreet Kour, Ravi Pratap Singh, Gaurav Kumar Yogesh, Kamlesh Yadav
Summary: In this study, binary and ternary phase nanocomposites were synthesized using the melt mixing method, and the structural, optical, thermal, and dielectric properties were investigated with increasing Cr2O3 nanofiller concentration. The results showed that there was an increase in interfacial interactions between Cr2O3 nanofiller and PE matrix up to a certain concentration, but the interactions decreased with further increase in concentration. Incorporating carbon nanotubes further decreased the interactions between Cr2O3 nanofiller and PE matrix.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Chemistry, Physical
Deivasigamani Ranjith Kumar, P. Muhammed Shafi, Raj Karthik, Ganesh Dhakal, Soo-Hyun Kim, Myunghee Kim, Jae-Jin Shim
Summary: Zinc-ion batteries (ZIBs) are a promising technology with safe water or gel polymer electrolytes. However, the strong charge interactions and slow diffusion of zinc ions limit their real-time application. This study reports the development of a water-molecule pre-intercalated sheet-like V2O5 cathode and gel polymer electrolyte to address these issues, demonstrating high capacity and long-term cycling stability.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Electrochemistry
M. P. Harikrishnan, P. Naveena, N. Baskaran, A. Chandra Bose
Summary: CeNiO3 (CNO) is a promising anode material for supercapacitors due to its stable structure and prolonged cycle life. In this study, CNO nanospheres anchored on a chain-like structure of VS4 (VS) with high sulfur content were successfully synthesized using in situ hydrothermal reaction. The optimized structure of CNO nanospheres on VS showed an enhanced specific capacity compared to pristine CNO and VS. The combination of sulfur and oxide in VS facilitated a diffusion-driven charge storage mechanism, while higher sulfur content enhanced surface-controlled charge storage. Additionally, an asymmetric supercapacitor was fabricated with CNO@VS10 as the positive electrode, demonstrating high specific energy and power. DFT studies were used to support the experimental observations. Moreover, a set of LEDs displaying NML on a printed circuit board (PCB) was lit up using CR2032 coin cells connected in series.
ELECTROCHIMICA ACTA
(2023)
Review
Energy & Fuels
M. P. Harikrishnan, A. Chandra Bose
Summary: VS4, also known as patronite, is a widely studied nanostructured material with high theoretical capacity. Its chain-like structure and interchain spacing provide space for ion insertion/extraction, making it suitable for supercapacitor and battery applications. Scientific reports on VS4 and its nanocomposites have been published recently, and this article summarizes their charge storage properties and discusses challenges and future perspectives.
Article
Electrochemistry
Rengasamy Dhanabal, A. Juliet Christina Mary, Suhash Ranjan Dey, Arumugam Chandra Bose
Summary: Metal oxide-based nanostructures, particularly nickel oxide (NiO)-based nanostructures, show high-performance in electrochemical energy storage devices. Different NiO nanostructures, including nanoplate, nanoflower, nanorod, and nanosheet, have been synthesized using a solution-based hydrothermal method. These nanostructures exhibit specific capacities of 355 C g(-1), 294 C g(-1), 284 C g(-1), and 432 C g(-1) when used as electrodes in a three-electrode system. Additionally, a solid-state asymmetric supercapacitor device (NiO//AC) composed of NiO nanosheet anode and activated carbon cathode achieves a specific capacity of 83 C g(-1), a maximum energy density of 39.49 Wh kg(-1), and a retention rate of 107.9% after 10,000 charge/discharge cycles.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
I. Ajin, R. Balamurugan, A. Chandra Bose
Summary: In this study, La2NiCrO6 (LNC) double perovskites were successfully synthesized as an efficient supercapacitor electrode material. In a three-electrode system, LNC@Ni-foam showed a specific capacity of 529 C g(-1) (147 mA h g(-1)) at a current density of 1 A g(-1). A device fabricated with LNC@Ni-foam as a positive electrode and activated carbon (AC) AC@Ni-foam as a negative electrode achieved a specific capacity of 227 C g(-1) (63 mA h g(-1)) at 1 A g(-1), and exhibited an energy density of 49.17 W h kg(-1) and a cycle stability of 97% after 10,000 cycles at a current density of 10 A g(-1).
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
K. Anusuyadevi, R. Balamurugan, A. Chandra Bose, S. Velmathi
Summary: This study presents a single-step synthesis of nitrogen and oxygen doped carbon nano-sponges by heating precursors in dimethylsulfoxide. The structure, morphology, and optical properties of the nano-sponges were thoroughly investigated. The nano-sponges exhibited fluorescent sensing capability for 4-nitroaniline and showed potential as a supercapacitor due to their high surface area, porous nature, and functionalities.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Physics, Multidisciplinary
P. Vipin, R. Sankaranarayanan
Summary: The dynamics of a Brownian particle in Morse potential under thermal fluctuations is investigated by numerically integrating the corresponding Langevin equation. The dependence of Kramer's rate on temperature and viscosity of the medium is studied by mean first passage time. An approximate analytical expression for the rate constant is found and it shows a temperature dependent pre-factor for the Arrhenius equation. Numerical simulations are consistent with the analytical approximations.
PRAMANA-JOURNAL OF PHYSICS
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
E. P. Shuaib, Gaurav Kumar Yogesh, D. Sastikumar
Summary: In this study, amorphous and crystalline SiC nanoparticles were successfully synthesized in water and ethanol through laser ablation, and their properties and photoluminescence characteristics were revealed through spectroscopic analysis.
MATERIALS TODAY-PROCEEDINGS
(2022)
