Some aspects of the NO reduction reaction over rhodium catalysts

1997 ◽  
Vol 93 (4) ◽  
pp. 639-642 ◽  
Author(s):  
Paulo Araya ◽  
Joaquin Corte´s
Keyword(s):  
No Reduction ◽  
Reduction Reaction ◽  
Rhodium Catalysts

scholarly journals Cover Feature: Operando Shell‐Isolated Nanoparticle‐Enhanced Raman Spectroscopy of the NO Reduction Reaction over Rhodium‐Based Catalysts (ChemPhysChem 15/2021)

ChemPhysChem ◽  
2021 ◽  
Vol 22 (15) ◽  
pp. 1545-1545
Author(s):  
Fabiane C. Ballotin ◽  
Thomas Hartman ◽  
Joris Koek ◽  
Robin G. Geitenbeek ◽  
Bert M. Weckhuysen
Keyword(s):  
Raman Spectroscopy ◽  
No Reduction ◽  
Reduction Reaction

scholarly journals Elucidation of Electronic Structure of the Recaction Intermediate in the NO Reduction reaction Catalyzed by Fungal NOR.

1999 ◽  
Vol 39 (supplement) ◽  
pp. S123
Author(s):  
E. Obayashi ◽  
D.-S. Lee ◽  
T. Noguchi ◽  
Y. Shiro
Keyword(s):  
Electronic Structure ◽  
No Reduction ◽  
Reduction Reaction

Strategies of alloying effect for regulating Pt-based H2-SCR catalytic activity

2018 ◽  
Vol 54 (68) ◽  
pp. 9502-9505 ◽  
Author(s):  
Wei Sun ◽  
Zhiqiang Wang ◽  
Qian Wang ◽  
Waqas Qamar Zaman ◽  
Limei Cao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
No Reduction ◽  
Compressive Strain ◽  
Reduction Reaction ◽  
Alloying Effect

Compressive strain is induced in Pt crystals by alloying with smaller-sized 3d transition metals, which enhances the H2–NO reduction reaction activity by decreasing the energy required for breaking the N–O bond.

Quantum Chemical Computation-Driven Development of Cu-Shell–Ru-Core Nanoparticle Catalyst for NO Reduction Reaction

2019 ◽  
Vol 123 (33) ◽  
pp. 20251-20256 ◽  
Author(s):  
Junya Ohyama ◽  
Jumpei Shibano ◽  
Atsushi Satsuma ◽  
Ryoichi Fukuda ◽  
Yuta Yamamoto ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
No Reduction ◽  
Reduction Reaction ◽  
Quantum Chemical Computation ◽  
Chemical Computation ◽  
Nanoparticle Catalyst

Effect of H2O2 on homogeneous gas phase NO reduction reaction with NH3

AIChE Journal ◽  
1982 ◽  
Vol 28 (1) ◽  
pp. 7-11 ◽  
Author(s):  
S. Azuhata ◽  
H. Akimoto ◽  
Y. Hishinuma
Keyword(s):  
Gas Phase ◽  
No Reduction ◽  
Reduction Reaction

scholarly journals Bimetallic AgFe Systems on Mordenite: Effect of Cation Deposition Order in the NO Reduction with C3H6/CO

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 58 ◽  
Author(s):  
Perla Sánchez-López ◽  
Yulia Kotolevich ◽  
Serguei Miridonov ◽  
Fernando Chávez-Rivas ◽  
Sergio Fuentes ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Inductively Coupled Plasma ◽  
Active Sites ◽  
No Reduction ◽  
Optical Emission ◽  
Reduction Reaction ◽  
Exchange Method ◽  
Inductively Coupled ◽  
Preparation Conditions ◽  
Bimetallic Systems

Mono- and bimetallic systems of Ag, Fe, and Ag–Fe exchanged in sodium mordenite zeolite were studied in the reaction of NO reduction. The transition metal cations Ag and Fe were introduced by ion exchange method both at room temperature and 60 °C; modifying the order of component deposition in bimetallic systems. These materials were characterized by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES), ultraviolet-visible spectroscopy (UV-Vis), X-Ray photoelectron Spectroscopy (XPS) and High-resolution transmission electron microscopy (HR-TEM). The XPS and UV–Vis spectra of bimetallic samples revealed that under certain preparation conditions Ag+ is reduced with the participation of the Fe2+/Fe3+ ions transition and is present in the form of a Ag reduced state in different proportions of Agm clusters and Ag0 NPs, influenced by the cation deposition order. The catalytic results in the NO reduction reaction using C3H6/CO under an oxidizing atmosphere show also that the order of exchange of Ag and Fe cations in mordenite has a strong effect on catalytic active sites for the reduction of NO.

scholarly journals Experimental and Kinetic Investigation on NO Reduction by Rice Husk Char and Catalytically with CO

2020 ◽  
Vol 10 (19) ◽  
pp. 6715
Author(s):  
Nan Li ◽  
Yali Wang ◽  
Suping Cui ◽  
Xiaodong Jin
Keyword(s):  
Rice Husk ◽  
No Reduction ◽  
Fixed Bed ◽  
Energy Resource ◽  
Reduction Reaction ◽  
Direct Reaction ◽  
No Reduction By Co ◽  
Co Concentration ◽  
Reaction Orders ◽  
Biomass Char

Biomass char is accepted as an environmentally friendly energy resource, and is promising for NO removal in industrial furnaces. NO reduction with biomass char (rice husk) was investigated in a fixed-bed quartz reactor. The influence of CO concentration, reaction temperature, initial NO concentration, and char loading on the NO reduction were evaluated. The results showed that the overall NO reduction reaction was dominated by the direct reaction of NO with char without CO. Increasing CO concentration resulted in an enhanced catalytic reaction between NO and CO over the char surface and a decreased carbon consumption of char. With decreasing temperature, the influence of CO concentration on NO reduction was strengthened. Over the test temperature range, char provided a surface to catalyze the NO–CO reaction at excess CO/NO ratio. Increasing the initial NO concentration led to an increasingly significant influence on NO reduction with the enhanced CO/NO ratio. With increased char loading, the enhancement of NO reduction became unobservable for excess CO/NO ratio. Reaction orders of NO and activation energy for NO reduction by char were 0.71 and 60.21 kJ·mol−1, respectively, against 0.82 and 34.60 kJ·mol−1, respectively, for NO reduction by CO, catalyzed by char.

Sign in / Sign up

Export Citation Format

Share Document