@article {46904,
	title = {Morphological evolution of two-dimensional porous hexagonal trimesic acid framework},
	journal = {ACS Applied Materials \& Interfaces},
	volume = {12},
	year = {2020},
	month = {APR },
	pages = {15588-15594},
	type = {Article},
	abstract = {<p>Hexagonal single crystal structure (Form II) of trimesic acid (TMA) has been isolated by dissolving the interpenetrated Form I of TMA in tetrahydrofuran. Form II (hexagonal) was converted to Form I (interpenetrated) at room temperature through some intermediate structures. A detailed time-dependent FESEM study shows that the external morphology of Form II (hexagonal) is a hollow hexagonal tube that mimics its crystal structure. The block-shaped (morphology) of Form I (interpenetrated) was converted to the hollow hexagonal tube through some intermediate morphologies which are corresponding to particular crystal structures. Here, we have established a strong correlation between crystal structures with the morphology. These hollow tubes have been employed for Rhodamine B dye adsorption studies and showed an uptake of 82\%, much more significant than Form I (interpenetrated) (39\%) due to the presence of a pore channel in the crystal structure.</p>
},
	keywords = {dye adsorption, hollow hexagonal rod, hydrogen-bonded organic framework, morphology evaluation, trimesic acid},
	issn = {1944-8244},
	doi = {10.1021/acsami.0c01398},
	author = {Tothadi, Srinu and Koner, Kalipada and Dey, Kaushik and Addicoat, Matthew and Banerjee, Rahul}
}
@article {49003,
	title = {Morphology tuning via linker modulation: metal-free covalent organic nanostructures with exceptional chemical stability for electrocatalytic water splitting},
	journal = {Advanced Materials },
	volume = {36},
	year = {2024},
	month = {MAR},
	type = {Article},
	abstract = {<p>
	The development of synthetic routes for the formation of robust porous organic polymers (POPs) with well-defined nanoscale morphology is fundamentally significant for their practical applications. The thermodynamic characteristics that arise from reversible covalent bonding impart intrinsic chemical instability in the polymers, thereby impeding their overall potential. Herein, a unique strategy is reported to overcome the stability issue by designing robust imidazole-linked POPs via tandem reversible/irreversible bond formation. Incorporating inherent rigidity into the secondary building units leads to robust microporous polymeric nanostructures with hollow-spherical morphologies. An in-depth analysis by extensive solid-state NMR (1D and 2D) study on H-1, C-13, and N-14 nuclei elucidates the bonding and reveals the high purity of the newly designed imidazole-based POPs. The nitrogen-rich polymeric nanostructures are further used as metal-free electrocatalysts for water splitting. In particular, the rigid POPs show excellent catalytic activity toward the oxygen evolution reaction (OER) with long-term durability. Among them, the most efficient OER electrocatalyst (TAT-TFBE) requires 314 mV of overpotential to drive 10 mA cm(-2) current density, demonstrating its superiority over state-of-the-art catalysts (RuO2 and IrO2).</p>
},
	keywords = {bi-functional electrocatalysts, chemically robust, hollow-spherical morphologies, imidazole-linked, inherent rigidity, metal-free, water splitting},
	issn = {0935-9648},
	doi = {10.1002/adma.202209919},
	author = {Karak, Shayan and Koner, Kalipada and Karmakar, Arun and Mohata, Shibani and Nishiyama, Yusuke and Duong, Nghia Tuan and Thomas, Neethu and Ajithkumar, Thalasseril Govindankuttykaimal and Hossain, Munshi Sahid and Bandyopadhyay, Subhajit and Kundu, Subrata and Banerjee, Rahul}
}
