@article {47754,
	title = {In-situ experimental and computational approach to investigate the nature of active site in low-temperature CO-PROX over CuOx-CeO2 catalyst},
	journal = {Applied Catalysis A-General},
	volume = {624},
	year = {2021},
	month = {AUG },
	pages = {118305},
	type = {Article},
	abstract = {Preferential oxidation (PROX) of carbon monoxide (CO) in presence of excess hydrogen is a necessity to prevent poisoning of the Pt-anode by CO in PEMFCs (Polymer Electrolyte Membrane Fuel Cell). A highly active catalyst, 5 wt\% Cu-CeO2 showed 100 \% CO conversion at 65 degrees C without any undesirable oxidation of H-2. The catalyst showed no deactivation even after 100 h on stream, making it viable for practical fuel cell application. Operando EPR in the PROX reaction condition revealed highly dispersed mixed valent cations with oxygen vacancies, responsible for the low-temperature PROX activity. At the active site, both Cu and Ce ions were shown to reversibly change their valence states to facilitate the abstraction of bridging lattice oxygen for CO oxidation to CO2. This surface oxygen mediated CO oxidation was found to be much faster than that of H-2 to H2O, which could explain the complete selectivity of oxygen for CO2 formation.},
	keywords = {CuOx-CeO2, interface, Oxygen vacancy, PROX, Synergistic},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2021.118305},
	author = {Adak, Shubhadeep and Rabeah, Jabor and Ranjan, Ravi and Khan, Tuhin Suvra and Poddar, Mukesh Kumar and Gupta, Rishi Kumar and Sasaki, Takehiko and Kumar, Sagar and Bordoloi, Ankur and Gopinath, Chinnakonda S. and Bruckner, Angelika and Bal, Rajaram}
}
@article {47057,
	title = {Synergistic nanostructured MnOx/TiO2 catalyst for highly selective synthesis of aromatic imines},
	journal = {ChemCatChem},
	volume = {13},
	year = {2021},
	month = {APR},
	pages = {1990-1997},
	type = {Article},
	abstract = {<p>This work reports the development of a synergistic nanostructured MnOx/TiO2 catalyst, with highly dispersed MnOx nanoparticles (4.5 +/- 1 nm) on shape-controlled TiO2 nanotubes (8-11 nm width and 120-280 nm length), for selective synthesis of valuable aromatic imines at industrially important conditions. Pristine TiO2 nanotubes exhibited 97 \% imine selectivity at a 38.3 \% benzylamine conversion, whereas very low imine selectivity was obtained over commercial TiO2 materials, indicating the catalytic significance of shape-controlled TiO2 nanotubes. The MnOx nanoparticle/TiO2 nanotube (10 wt\% Mn) catalyst calcined at 400 degrees C showed the best activity with 95.6 \% benzylamine conversion and 99.9 \% imine selectivity. This catalyst exhibited good recyclability for four times and is effective for converting numerous benzylamines into higher yields of imines. The high catalytic performance of MnOx/TiO2 nanotubes was attributed to higher number of redox sites (Mn3+), high dispersion of Mn species, and shape-controlled structure of TiO2, indicating that this catalyst could be a promising candidate for selective oxidation reactions.</p>
},
	keywords = {Acid-redox properties, aerobic oxidation, Nanostructured catalyst, Selective catalysis, Synergistic metal-oxide interaction},
	issn = {1867-3880},
	doi = {10.1002/cctc.202001870, Early Access Date = FEB 2021},
	author = {Sudarsanam, Putla and Kockritz, Angela and Atia, Hanan and Amin, Mohamad Hassan and Bruckner, Angelika}
}
