Aleksey Yezerets

TL;DR: In this article, the authors describe the work carried out in characterizing, developing, and understanding this catalyst technology for application in mobile exhaust gas aftertreatment, which includes five general steps involved in NOx reduction to N2 on NSR catalysts; NO oxidation, NO2 and NO sorption leading to nitrite and nitrate species.

TL;DR: It is demonstrated that under reaction conditions, mobilized Cu ions can travel through zeolite windows and form transient ion pairs that participate in an oxygen (O2)–mediated CuI→CuII redox step integral to SCR.

TL;DR: In this article, the standard selective catalytic reduction (SCR) reaction at 473 K with 320 ppm NO, 320 ppm NH 3, 10% O 2, 8% CO 2, and 6% H 2 O was observed to track with a hydrated Cu(II) species in ultraviolet-visible-near infrared spectroscopy (UV-Vis-NIR) at ambient conditions.

TL;DR: In this paper, a HRTEM study of several diesel soot samples collected on Diesel Particulate Filters (DPF) under conditions relevant to practical applications of DPF technology, revealed nano-structure, to the best of our knowledge, not reported previously for diesel soots.

TL;DR: In this paper, the authors investigated an unusual acidity feature of a Cu/SSZ-13 catalyst used in selective catalytic reduction of NOx with NH3 (NH3-SCR).