@article {47067,
	title = {Exceptional capacitance enhancement of a non-conducting COF through potential-driven chemical modulation by redox electrolyte},
	journal = {Advanced Energy Materials},
	volume = {11},
	year = {2021},
	month = {APR},
	pages = {2003626},
	type = {Article},
	abstract = {<p>Capacitors are the most practical high-storage and rapid charge-release devices. The number of ions stored per unit area and their interaction strength with the electrode dictates capacitor-performance. Microporous materials provide a high storage surface and optimal interactions. Adsorbing electron-rich and easily polarizable molecules into microporous electrodes is expected to boost Faradaic pseudo-activity. If such electrode-electrolyte interactions can be made as a potential-driven reversible process, the resulting capacitors would be adaptable and device-friendly. A composite covalent organic framework (COF)-carbon electrode with redox-active KI is combined in an H2SO4 electrolyte for the first time. This composite electrode benefits from the redox-functionality of COF and electronic conductivity of carbon, leading to superior capacitative activity. Operando spectro-electrochemical measurements reveal the existence of multiple polyiodide species, although the I-3(-) is the predominantly electroactive species adsorbing on the microporous triazine-phenol COF electrode. A systematic fabrication of the flexible solid-state devices using the COF-redox-electrolyte reveals a high areal capacitance of 270 +/- 11 mF cm(-2) and gravimetric capacitance of 57 +/- 8 F g(-1). The inclusion of KI in H2SO4 (electrolyte) yields an approximately eight-fold enhancement in solid-state gravimetric specific capacitance. The imine-COF retains 89\% of its capacity even after 10 000 cycles.</p>
},
	keywords = {covalent organic frameworks, polyiodide, redox electrolytes, solid\&\#8208, state capacitors, Supercapacitors},
	issn = {1614-6832},
	doi = {10.1002/aenm.202003626, Early Access Date = FEB 2021},
	author = {Kushwaha, Rinku and Haldar, Sattwick and Shekhar, Pragalbh and Krishnan, Akshara and Saha, Jayeeta and Hui, Pramiti and Vinod, Chathakudath Prabhakaran and Subramaniam, Chandramouli and Vaidhyanathan, Ramanathan}
}
@article {48992,
	title = {Electrochemical energy storage in an organic supercapacitor via a non-electrochemical proton charge assembly},
	journal = {Chemical Science},
	volume = {15},
	year = {2024},
	month = {JAN },
	pages = {1726-1735},
	type = {Article},
	abstract = {<p>
	Contrary to conventional beliefs, we show how a functional ligand that does not exhibit any redox activity elevates the charge storage capability of an electric double layer via a proton charge assembly. Compared to an unsubstituted ligand, a non-redox active carboxy ligand demonstrated nearly a 4-fold increase in charge storage, impressive capacitive retention even at a rate of 900C, and approximately a 2-fold decrease in leakage currents with an enhancement in energy density up to approximately 70\% via a non-electrochemical route of proton charge assembly. Generalizability of these findings is presented with various non-redox active functional units that can undergo proton charge assembly in the ligand. This demonstration of non-redox active functional units enriching supercapacitive charge storage via proton charge assembly contributes to the rational design of ligands for energy storage applications.</p>
},
	issn = {2041-6520},
	doi = {10.1039/d3sc05639b},
	author = {Mukhopadhyay, Sanchayita and Kottaichamy, Alagar Raja and Devendrachari, Mruthyunjayachari Chattanahalli and Mendhe, Rahul Mahadeo and Kotresh, Harish Makri Nimbegondi and Vinod, Chathakudath Prabhakaran and Thotiyl, Musthafa Ottakam}
}
