K
Kothandaraman Ramanujam
Researcher at Indian Institute of Technology Madras
Publications - 99
Citations - 904
Kothandaraman Ramanujam is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Chemistry & Catalysis. The author has an hindex of 12, co-authored 67 publications receiving 544 citations. Previous affiliations of Kothandaraman Ramanujam include Michigan State University.
Papers
More filters
Journal ArticleDOI
Novel ethynyl-pyrene substituted phenothiazine based metal free organic dyes in DSSC with 12% conversion efficiency
Bhanumathi Nagarajan,Suman Kushwaha,Ramachandran Elumalai,Sudip Mandal,Kothandaraman Ramanujam,Dhamodharan Raghavachari +5 more
TL;DR: In this article, six new dyes based on phenothiazine conjugated to an ethynyl-pyrene moiety were synthesized and characterized, and they were fabricated using these dyes with and without a co-adsorbent, chenodeoxychloicacid.
Patent
Novel catalyst for oxygen reduction reaction in fuel cells
TL;DR: In this paper, a carbon-metal-nitrogen oxygen reducing cathode catalyst is proposed, which consists of mixing a carbon source with a transition metal precursor to form a metal precursor loaded carbon substrate, adding a nitrogen precursor compound to the metal precursor and pyrolyzing it in a closed vessel.
Journal ArticleDOI
A chitosan/poly(ethylene glycol)-ran-poly(propylene glycol) blend as an eco-benign separator and binder for quasi-solid-state supercapacitor applications
TL;DR: In this article, the authors used activated porous carbon (ACTS-900) derived from Tamarindus indica, a bio-source, via KOH activation and carbonization at 900°C was used as an active electrode material for supercapacitor (SC) applications.
Journal ArticleDOI
Cobalt-Based Coordination Polymer for Oxygen Reduction Reaction.
Prabu Mani,Anjaiah Sheelam,Shubhajit Das,Guanxiong Wang,Vijay Ramani,Kothandaraman Ramanujam,Swapan K. Pati,Sukhendu Mandal +7 more
TL;DR: A new semiconductive and low-optical band gap CP structure, 1, is reported, that exhibits high-performance ORR in alkaline medium and can be used as a promising cathode material for fuel cells in terms of efficiency and cost effectiveness.
Journal ArticleDOI
Controlling the Nitrogen Content of Metal-Nitrogen-Carbon Based Non-Precious-Metal Electrocatalysts via Selenium Addition
K. M. Palanivelu,Venkateshkumar Prabhakaran,Venkateshkumar Prabhakaran,Vijay Ramani,Kothandaraman Ramanujam +4 more
TL;DR: In this paper, selenium was used as a ligand to replace the nitrogen coordinated to the iron atom in the electrocatalyst, thereby imparting control on the nitrogen content.