Alagar Ramar

ORCID: 0000-0002-9378-2843
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced Battery Technologies Research
  • Conducting polymers and applications
  • Supercapacitor Materials and Fabrication
  • TiO2 Photocatalysis and Solar Cells
  • Advanced battery technologies research
  • Advanced Photocatalysis Techniques
  • Electrochemical sensors and biosensors
  • Agricultural Economics and Practices
  • Genetic and Environmental Crop Studies
  • Organic Electronics and Photovoltaics
  • Analytical Chemistry and Sensors
  • Agricultural pest management studies
  • Plant Growth Enhancement Techniques
  • Synthesis and Biological Evaluation
  • Social and Economic Development in India
  • Semiconductor materials and interfaces
  • Humic Substances and Bio-Organic Studies
  • Advanced Nanomaterials in Catalysis
  • Synthesis and biological activity
  • Advanced biosensing and bioanalysis techniques
  • Transition Metal Oxide Nanomaterials
  • Fullerene Chemistry and Applications
  • Agronomic Practices and Intercropping Systems

National Taiwan University of Science and Technology
2017-2024

Tamil Nadu Agricultural University
2019-2023

Dr. Y.S.R Horticultural University
2021-2023

Universiti Sains Malaysia
2019

Madurai Kamaraj University
2012-2017

King Saud University
2013

Technical University of Denmark
2011-2013

Developing label-free immunosensors to detect ovarian cancer (OC) by antigen (CA125) is essential improving diagnosis and protecting women from life-threatening diseases. Four types of carbon nanomaterials, such as multi-wall nanotubes (MWCNTs), vapor-grown fiber (VGCFs), graphite KS4, black super P (SP), have been treated with acids prepare a nanomaterial/gold (Au) nanocomposite. The AuNPs@carbon nanocomposite was electrochemically deposited on glassy electrode (GCE) serve substrate...

10.3390/s23031131 article EN cc-by Sensors 2023-01-18

Ni-rich high-energy-density lithium ion batteries pose great risks to safety due internal short circuits and overcharging; they also have poor performance because of cation mixing disordering problems. For layered cathodes, these factors cause gas evolution, the formation side products, life cycle decay. In this study, a new cathode electrolyte interphase (CEI) for Ni2+ self-oxidation is developed. By using branched oligomer electrode additive, CEI formed prevents reduction Ni3+ on surface...

10.1021/acsami.0c22295 article EN ACS Applied Materials & Interfaces 2021-02-03

Electric vehicles (EVs) are poised to dominate the next generation of transportation, but meeting power requirements EVs with lithium ion batteries is challenging because electrolytes containing LiPF6 and carbonates do not perform well at high temperatures voltages. However, benzimidazole salt a promising electrolyte additive that can stabilize through Lewis acid–base reaction. The imidazole ring eligible for high-voltage applications owing its resonance structure, in this research,...

10.1021/acs.chemmater.7b00824 article EN Chemistry of Materials 2017-06-11

Dye-sensitized solar cells (DSSCs) based on ZnO/multi-walled carbon nanotube (MWCNT) nanocomposite films are prepared by mechanical grinding and spin coating method. As further characterized scanning electron microscopy (SEM), UV–vis absorption impedance spectroscopy. The photoelectric performances of the DSSCs ZnO/MWCNT film electrodes with various concentrations (from 0.1 wt % to 0.5 %) compared. power conversion efficiency MWCNT increasing up 0.3 while excess loadings significantly...

10.1016/s1452-3981(23)16500-x article EN cc-by-nc-nd International Journal of Electrochemical Science 2012-12-01

Increasing the dye adsorption and minimization of charge recombination are pivotal in improving efficiency a dye-sensitized solar cells (DSSCs). In present investigation, these two effects have been accomplished through introduction poly(N-vinylcarbazole) (PVK) as an auxiliary component TiO2 photoanode N719 dye-based DSSC. TiO2/PVK hybrid nanocomposites were prepared by simple blending with small quantities PVK (0.3–1.3 wt %) presence PEG20000, acetylacetone, Triton X-100. X-ray diffraction...

10.1021/acs.jpcc.5b06582 article EN The Journal of Physical Chemistry C 2015-09-25

Abstract Three-component reaction of 1-[(4-chlorophenyl)sulfanyl]acetone, malononitrile, and substituted aromatic aldehydes in the presence sodium ethoxide under simple mixing at ambient temperature for 5–8 min afforded highly functionalized 4H-pyrans good to excellent yields. 1,3-Dipolar cycloaddition nitrile oxides over functionality furnished 1,2,4-oxadiazoles moderate Supplementary materials are available this article. Go publisher's online edition Synthetic Communications® full...

10.1080/00397911.2012.740647 article EN Synthetic Communications 2013-07-08

Abstract Silicon (Si) has the maximum capacity compared with conventional graphite, which can dramatically increase energy density of battery. However, due to some tremendous drawbacks Si material such as electrochemical irreversibility and volume expansion on alloy reaction, pure cannot be used in large quantities anode electrode. In this research, a polymer brush core‐shell structure (PBCS) nanoparticle provides three significant functions because intramolecular effect hydrogen bonding...

10.1002/admi.202102007 article EN Advanced Materials Interfaces 2022-01-28

Organic materials (OMs) have great potential to accept alkaline ions and thus be used in energy storage systems. Owing their low cost, easy synthesis, wide applications, a green battery containing an OM without any considerable production of heavy pollutants such as graphite transition-metal oxides can expected the near future. In this study, two new OMs, chelidamic acid (CDA) chelidonic (CDO), were prepared investigated for storage. CDA CDO similar molecular weight structure but differ...

10.1021/acssuschemeng.1c03880 article EN ACS Sustainable Chemistry & Engineering 2021-08-30

The influence of tautomerism and nucleophilic addition on chelidamic acid chelidonic acid, compounds with similar molecular weights but different hetero atoms, was investigated in aqueous organic redox flow batteries.

10.1039/d4ya00331d article EN cc-by-nc Energy Advances 2024-01-01

In this study we prepared potassium-ion batteries (KIBs) displaying high output voltage and, in turn, a energy density, as replacements for lithium-ion (LIBs). Organic electrode materials featuring void spaces and flexible structures can facilitate the mobility of K+ to enhance performance KIBs. We synthesized potassium maleamate (K-MA) from maleamic acid (MA) applied an anode material KIBs LIBs, with 1 M bis(fluorosulfonyl)imide (KFSI) lithium (LiFSI) mixture ethylene carbonate ethyl methyl...

10.3390/nano11113120 article EN cc-by Nanomaterials 2021-11-19
Coming Soon ...