@article {46853,
	title = {Co@CoAl-layered double hydroxide/nitrogen-doped graphene composite catalyst for Al-H2O-based batteries: simultaneous hydrogen production and electricity generation},
	journal = {ChemElectroChem},
	volume = {7},
	year = {2020},
	month = {JUN},
	pages = {2582-2591},
	type = {Article},
	abstract = {<p>Currently, the low energy efficiency of water electrolysis has compelled research toward the development of novel and energy-effective strategies for low-cost H-2 generation. In this context, we report a new concept of simultaneous H-2 and electricity generation by separating out the exothermic self-sustained Al-H2O reaction via electrochemistry. In addition, to catalyze the cathodic water reduction reaction, a single-pot and environmentally benign synthesis method is adopted. It results in the design of an electrocatalyst composed of Co@CoAl-layered double hydroxide core-shell nanospheres anchored over in situ generated N-doped graphene. Toward the water reduction reaction, the designed catalyst shows a negative voltage shift of mere around 113 mV with respect to the commercial Pt/C catalyst to reach the benchmark 10 mA cm(-2), with excellent stability of approximately 86 \% voltage retention after 12 h of continuous operation. The catalytic superiority of our material is evident when taken for battery-level testing; the fabricated device was able to deliver an average output voltage of around 0.95 V at a discharge current density of 5 mA cm(-2) along with H-2 liberation, which was also detected and quantified through gas chromatography.</p>
},
	keywords = {Al-H2O fuel cells, chronopotentiometry, core-shell structures, hydrogen evolution reaction, layered double hydroxides},
	issn = {2196-0216},
	doi = {10.1002/celc.202000502, Early Access Date = MAY 2020},
	author = {Nadeema, Ayasha and Pandurang Kharabe, Geeta and Prakash Biswal, Dibya and Kurungot, Sreekumar}
}
