Selective Catalytic Reduction of Nitrogen Oxides with Hydrogen (H₂‐SCR‐DeNO_x) over Platinum‐Based Catalysts

Abstract

Selective catalytic reduction of NOx with hydrogen (H2‐SCR‐DeNOx) is applied among other techniques (i.e., SCR‐DeNOx by applying NH3 or hydrocarbons as reducing agents) to control nitrogen oxides from mobile and stationary sources. As a zero carbon technology, which efficiently reduces NOx below 200 °C, H2‐SCR‐DeNOx has gained attention in installations and plants with H2 availability. The catalytic properties and reaction mechanism of platinum‐based catalysts are given in detail. Also, Pd‐based catalysts are briefly reviewed. It is expected that the review will provide broad insights into the design and optimization of catalysts in the H2‐SCR‐DeNOx.