News Picture Generic

Time-Resolved Dynamics During the Initial Decline in Catalytic Activity of the CO + NO Reaction Over Platinum – Elucidating the Role of NCO

April 29, 2025

SSRN

The temporal evolution of the reduction of NO by CO over Pt/Al2O3 as a layered and powdered catalyst in flow reactors is investigated as a function of temperature and stoichiometry and at low concentrations typical for emission control. The focus is mainly on the early decline in conversion over freshly reduced or regenerated catalysts as well as on the reaction of NO with isocyanate previously adsorbed on the surface. Results suggest presented suggest that isocyanate formation promotes dissociation of adsorbed NO, thus temporarily counteracting the well-known inhibiting effect of CO adsorption.

For details

Thomas Häber, Samuel Struzek, Sui Wan, Joachim Czechowsky, Camilo Cárdenas, Florian Maurer, Patrick Lott, Rainer Suntz, Jan-Dierk Grunwaldt & Olaf Deutschmann

Karlsruhe Institute of Technology

DOI: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4698355

Contact us to learn more about this exciting publication:

https://www.chemspeed.com/contact-us/

Other Recent News

Discover more news articles you might be interested in

Read more about Influence of the CeO₂ Morphology and Initial Pd–Pt Interaction Degree on Catalyst Activity and Stability
News Picture 1 1 V2
Oct
7

Influence of the CeO₂ Morphology and Initial Pd–Pt Interaction Degree on Catalyst Activity and Stability

Due to its peculiar properties and strong interaction with noble metals, ceria is widely used as a catalyst support for numerous applications. In this work, morphologically pure and highly crystalline ceria nanocubes and nanorods were prepared to systematically investigate both the impact of the support morphology and Pd–Pt interaction degree on the noble metal-support interplay during CO oxidation.

Read more about High-throughput RAFT Polymerization via Automated Batch, Increment, and Continuous Flow Platforms
News Picture 1 1 V2
Featured
Sep
23

High-throughput RAFT Polymerization via Automated Batch, Increment, and Continuous Flow Platforms

We report an automated strategy to conduct RAFT copolymerizations using a Chemspeed robotic platform capable of executing batch, incremental, and continuous monomer addition workflows under inert conditions. Copolymerizations of oligo(ethylene glycol) acrylate with benzyl acrylate (as a control) and fluorescein o-acrylate were conducted in toluene, THF, and DMF, with reaction progress monitored via ¹H NMR spectroscopy at defined intervals.

Read more about Kinetically guided exploration of photocatalytic reactions by combining automation with in situ measurements
News Picture 1 1 V2
Featured
Sep
9

Kinetically guided exploration of photocatalytic reactions by combining automation with in situ measurements

Photocatalysis enables valuable reactions such as synthetic transformations or energy conversion processes like water splitting. To rationally improve photocatalytic reactions, mechanistic insights are required. These can be obtained with kinetic measurements, which are, however, difficult to obtain for a large enough number of reaction conditions to provide systematic and valuable insights. 

© Chemspeed Technologies 2025