@article {49504,
	title = {Pt-based 3D electrocatalyst with process-friendly features for PEMFCs possessing fast activation and improved mass-transfer properties},
	journal = {Advanced Sustainable Systems},
	volume = {9},
	year = {2025},
	month = {APR},
	type = {Article},
	abstract = {<p>
	Polymer-electrolyte-membrane fuel cells (PEMFCs) face the challenges like slow oxygen reduction reaction (ORR) kinetics and limited mass transport at high current densities, which affects their performance. The efficient water removal from the cathode is essential to improve oxygen diffusion. Addressing this, a catalyst is presented with platinum (Pt) nanoparticles distributed within a 3D carbon network (Pt/3DPDC) derived from the polydopamine-coated melamine foam. This unique architecture enhances Pt utilization and water management due to its high porosity and ample free spaces, providing a process-friendly feature for the electrode under PEMFC conditions. The pores and accessible texture of the 3D polydopamine derived carbon (3DPDC) framework facilitate ionomer uptake during the electrode fabrication, extending the active triple-phase boundary and improving the membrane electrode assembly (MEA) performance. The high porosity of Pt/3DPDC is mitigated by adding a small amount of commercial fuel cell catalayst (Pt/C), which maintains the effective catalyst number density per unit area by utilizing the excess porosity of the 3DPDC framework. This controlled interplay of the unique catalyst structure and spatially confined distribution of Pt/C within the Pt/3DPDC framework offers fast activation, reduced electrode flooding, and improved current densities across the operating potential window. This carefully engineered catalyst, designed through bottom-up strategies, is a promising electrocatalyst for practical PEMFC applications.</p>
},
	keywords = {Oxygen Evolution Reaction, oxygen reduction reaction, rechargeable flexible zinc-air battery},
	issn = {2366-7486},
	doi = {10.1002/adsu.202400904},
	author = {Pandikassala, Ajmal and Nadumattuvayil, Varsha and Singh, Mayank U. and Jadhav, Swapnil D. and Yoyakki, Athira and Kurungot, Sreekumar}
}
@article {50046,
	title = {Proton conductivity in a copper(II) bipyridine glycoluril complex: the synergistic role of coordinated water and hydrogen-bonded networks},
	journal = {Inorganica Chimica Acta},
	volume = {594},
	year = {2026},
	month = {MAY},
	pages = {123063},
	type = {Article},
	abstract = {<p>
	A dinuclear complex of copper(II) and bipyridine glycoluril (BPG) ligand is synthesized, characterized, and structurally examined by single-crystal X-ray diffraction. The complex [Cu2(BPG)2(NO3)2(H2O)4](NO3)2 center dot 5H2O (complex (1)) further forms a supramolecular network sustained by H-bonds between NH/C=O of BPG, coordinated/free water molecules, and nitrate anions. The complex exhibits a proton conductivity of 5.99 x 10_ 3 S center dot cm_ 1 at 90 degrees C and 95 \% relative humidity (RH) with activation energy value Ea 0.35 eV, suggesting the Grotthuss proton transport mechanism. This value is consistent with those reported for proton-conducting systems in which coordinated water molecules play a critical role in facilitating efficient proton hopping across hydrogen-bonded networks.</p>
},
	keywords = {Coordinated water, Copper(II) complex, H -bonding, proton conduction, Supramolecular networks},
	issn = {0020-1693},
	doi = {10.1016/j.ica.2026.123063},
	author = {Khatavkar, Medhavi D. and Panday, Rishukumar and Singh, Mayank U. and Kurungot, Sreekumar and Kumbhar, Avinash S.}
}
