Related Experiment Video
Updated: May 30, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
Published on: July 18, 2017
Low-temperature selective catalytic reduction of NO with propylene in excess oxygen over the Pt/ZSM-5 catalyst
Zhixiang Zhang1, Mingxia Chen, Zhi Jiang
1Research Center for Combustion and Environmental Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.
Abstract:
A 0.5 wt% Pt/ZSM-5 catalyst was used for the low-temperature selective catalytic reduction (SCR) of NO with C(3)H(6) in the presence of excess oxygen. Under an atmosphere of 150 ppm NO, 150 ppm C(3)H(6) and 18 vol% O(2) (GHSV 72,000 h(-1)), Pt/ZSM-5 showed remarkably high catalytic performance giving 77.1% NO reduction to N(2) + N(2)O and 79.7% C(3)H(6) conversion to CO(2) simultaneously at 140 °C. The samples were characterized by means of NO temperature programmed desorption (TPD), NO/C(3)H(6) temperature programmed oxidation (TPO), BET surface area, XRD and TEM. The catalytic activities of C(3)H(6) combustion and NO oxidation are improved by well-dispersed platinum significantly. It is found that the enhanced activity of Pt/ZSM-5 for the low-temperature SCR is associated with its outstanding activities in the TPO processes of NO to NO(2) and C(3)H(6) to CO(2) in low temperature range.
More Related Videos
Related Concept Videos
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Catalysis
Catalysis
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Ziegler–Natta Chain-Growth Polymerization: Overview

