@article { ISI:000353702500026,
	title = {Self-templated chemically stable hollow spherical covalent organic framework},
	journal = {Nature Communications},
	volume = {6},
	year = {2015},
	month = {APR},
	pages = {6786},
	publisher = {NATURE PUBLISHING GROUP},
	address = {MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND},
	abstract = {<p>Covalent organic frameworks are a family of crystalline porous materials with promising applications. Although active research on the design and synthesis of covalent organic frameworks has been ongoing for almost a decade, the mechanisms of formation of covalent organic frameworks crystallites remain poorly understood. Here we report the synthesis of a hollow spherical covalent organic framework with mesoporous walls in a single-step template-free method. A detailed time-dependent study of hollow sphere formation reveals that an inside-out Ostwald ripening process is responsible for the hollow sphere formation. The synthesized covalent organic framework hollow spheres are highly porous (surface area similar to 1,500m(2) g(-1)), crystalline and chemically stable, due to the presence of strong intramolecular hydrogen bonding. These mesoporous hollow sphere covalent organic frameworks are used for a trypsin immobilization study, which shows an uptake of 15.5 mu mol g(-1) of trypsin.</p>},
	issn = {2041-1723},
	doi = {10.1038/ncomms7786},
	author = {Kandambeth, Sharath and Venkatesh, V. and Shinde, Digambar B. and Kumari, Sushma and Halder, Arjun and Verma, Sandeep and Banerjee, Rahul}
}
@article {44609,
	title = {Superprotonic conductivity in flexible porous covalent organic framework membranes},
	journal = {Angewandte Chemie},
	volume = {57},
	year = {2018},
	month = {AUG},
	pages = {10894-10898},
	type = {Article},
	abstract = {<p>Poor mechanical stability of the polymer electrolyte membranes (PEMs) remains one of the bottlenecks towards improving the performance of the proton exchange membrane (PEM) fuel cells. The present work proposes a unique way to utilize crystalline covalent organic frameworks (COFs) as a self-standing, highly flexible membrane to further boost the mechanical stability of the material without compromising its innate structural characteristics. The as-synthesized p-toluene sulfonic acid loaded covalent organic framework membranes (COFMs) showing the highest proton conductivity amongst all crystalline porous organic polymeric materials reported till date, as high as 7.8 x 10-2 S cm-1, have been further tested under real PEM operating conditions to ascertain their practical utilization as proton exchange membranes. Attainment of 24 mW cm-2 power density, which is the highest among COFs and MOFs, highlights the possibilityof using a COF membrane over the other state-of-the-art crystalline porous polymeric materials reported to date.</p>},
	doi = {10.1002/ange.201804753},
	author = {Banerjee, Rahul and Sasmal, Himadri Sekhar and Harshitha, B. A. and Bhange, Siddheshwar and Karak, Suvendu and Halder, Arjun and Kurungot, Sreekumar}
}
