Modulated Excitation DRIFTS and Steady-State Isotopic Transient Kinetic Analysis (SSITKA) of NH3-SCR-DeNOx on Cu-Containing Zeolite Y

Magdalena Jabłońska; Jie Yang; Pranjit Das; Andreas Pöppl; Rujito Sesariojiwandono Ridho Sesariojiwandono Ridho Suharbiansah; Junjiang Zhu; Jacek Grams; Marek Rotko; Marko Bertmer

doi:10.1039/d5cy01536g

January 1, 2026Catalysis Science & Technology

Modulated Excitation DRIFTS and Steady-State Isotopic Transient Kinetic Analysis (SSITKA) of NH3-SCR-DeNOx on Cu-Containing Zeolite Y

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Key Points

The research aims to explore the catalytic properties of Cu-modified zeolite Y in NH3-SCR-DeNOx reactions.
Utilized modulated excitation DRIFTS for excitation modulation analysis.
Employed steady-state isotopic transient kinetic analysis (SSITKA) to study reaction kinetics.
Analyzed commercial zeolite Y in Na+, H+, and NH4+ forms with specific n(Si)/n(Al) ratios.
Demonstrated that copper modifications enhance the catalytic performance of zeolite Y.
Observed notable changes in reaction kinetics depending on the ion forms present.
Identified optimal conditions for effective NH3-SCR-DeNOx operations.

Implication

Investigations reveal the kinetics of NH3-SCR-DeNOx in zeolite Y, suggesting effective catalytic properties of copper modifications.

Abstract

As-received (in the form of Na + , H + , NH4 + ) commercial zeolite Y with n(Si)/n(Al) ratio of about 2.6 modified with copper cations was investigated in...

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Jabłońska et al. (2026) studied this question.

synapsesocial.com/papers/6980fecbc1c9540dea8112db https://doi.org/10.1039/d5cy01536g

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Modulated Excitation DRIFTS and Steady-State Isotopic Transient Kinetic Analysis (SSITKA) of NH3-SCR-DeNOx on Cu-Containing Zeolite Y

Key Points

Implication

Abstract

Discussion

Cite This Study

Modulated Excitation DRIFTS and Steady-State Isotopic Transient Kinetic Analysis (SSITKA) of NH3-SCR-DeNOx on Cu-Containing Zeolite Y

Key Points

Implication

Abstract

Discussion

Cite This Study

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