1
|
Rizzetto A, Sartoretti E, Khoma K, Armandi M, Piumetti M, Bensaid S, Pirone R. The Oscillatory Behaviour of Cu-ZSM-5 Catalysts for N 2O Decomposition: Investigation of Cu Species by Complementary Techniques. Chemphyschem 2024:e202400339. [PMID: 38688862 DOI: 10.1002/cphc.202400339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
Copper-exchanged ZSM-5 (Cu-ZSM-5) is a promising catalyst thanks to the Cu redox pair. A particular feature of this material consists in the presence of spontaneous isothermal oscillations which take place during N2O decomposition reaction, depending on the operating conditions. In the present work, a set of five Cu-ZSM-5 catalysts was synthesised by three procedures and three different copper precursor concentrations: i) wet impregnation, ii) single ion exchange, and iii) double ion exchange. Catalytic tests revealed that the ion-exchanged samples exhibit a low catalytic activity and no oscillatory behaviour, except for the twice-exchanged sample which achieves an average N2O conversion of 26 % at 400 °C. Conversely, the impregnated samples reach higher levels of N2O conversion (66 % for Cu5ZSM5_WI and 72 % for Cu10ZSM5_WI) and demonstrate a similar oscillating pattern. Further investigations disclosed that the most active catalysts, characterised by the presence of oscillatory behaviour, have more abundant and easily reducible copper species (ICP, EDX and H2-TPR) which interact better with the zeolitic support (FT-IR). Catalytic tests under a long time on stream (TOS) suggest that either self-organised patterns or deterministic chaos can be achieved during the reaction, depending on the operating conditions, such as temperature and contact time.
Collapse
Affiliation(s)
- Andrea Rizzetto
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Enrico Sartoretti
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Khrystyna Khoma
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Marco Armandi
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Marco Piumetti
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Samir Bensaid
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| | - Raffaele Pirone
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
| |
Collapse
|
2
|
Bruzzese PC, Salvadori E, Civalleri B, Jäger S, Hartmann M, Pöppl A, Chiesa M. The Structure of Monomeric Hydroxo-Cu II Species in Cu-CHA. A Quantitative Assessment. J Am Chem Soc 2022; 144:13079-13083. [PMID: 35819401 PMCID: PMC9335873 DOI: 10.1021/jacs.2c06037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Using EPR and HYSCORE spectroscopies in conjunction with ab initio calculations, we assess the structure of framework-bound
monomeric hydroxo-CuII in copper-loaded chabazite (CHA).
The species is an interfacial distorted square-planar [CuIIOH(O-8MRs)3] complex located at eight-membered-ring windows,
displaying three coordinating bonds with zeolite lattice oxygens and
the hydroxo ligand hydrogen-bonded to the cage. The complex has a
distinctive EPR signature with g = [2.072 2.072 2.290], CuA= [30 30 410] MHz, and HA = [−13.0 −4.5 +11.5] MHz, distinctively different
from other CuII species in CHA.
Collapse
Affiliation(s)
- Paolo Cleto Bruzzese
- Felix Bloch Institute for Solid State Physics, Leipzig University, 04103 Leipzig, Germany.,Department of Chemistry and NIS Centre of Excellence, University of Turin, 10125 Torino, Italy
| | - Enrico Salvadori
- Department of Chemistry and NIS Centre of Excellence, University of Turin, 10125 Torino, Italy
| | - Bartolomeo Civalleri
- Department of Chemistry and NIS Centre of Excellence, University of Turin, 10125 Torino, Italy
| | - Stefan Jäger
- Erlangen Center for Interface Research and Catalysis (ECRC), FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Martin Hartmann
- Erlangen Center for Interface Research and Catalysis (ECRC), FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Andreas Pöppl
- Felix Bloch Institute for Solid State Physics, Leipzig University, 04103 Leipzig, Germany
| | - Mario Chiesa
- Department of Chemistry and NIS Centre of Excellence, University of Turin, 10125 Torino, Italy
| |
Collapse
|
3
|
A DFT study on the mechanism of NO and N2O decomposition catalysed by Cu(I) pairs in Cu-ZSM-5: Revisited reactivity at the M6 ring. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
4
|
Taghavi S, Ghedini E, Menegazzo F, Mäki-Arvela P, Peurla M, Zendehdel M, Cruciani G, Di Michele A, Murzin DY, Signoretto M. CuZSM-5@HMS composite as an efficient micro-mesoporous catalyst for conversion of sugars into levulinic acid. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.11.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
5
|
Morpurgo S. The mechanism of NO and N2O decomposition catalyzed by short-distance Cu(I) pairs in Cu-ZSM-5: A DFT study on the possible role of NO and NO2 in the [Cu O Cu]2+ active site reduction. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
A DFT study on the mechanism of NO decomposition catalyzed by short-distance Cu(I) pairs in Cu-ZSM-5. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.01.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Xin Y, Wang X, Li Q, Ma X, Qi Y, Zheng L, Anderson JA, Zhang Z. The Potential of Cu-SAPO-44 in the Selective Catalytic Reduction of NOxwith NH3. ChemCatChem 2016. [DOI: 10.1002/cctc.201601159] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ying Xin
- School of Chemistry and Chemical Engineering; Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials; University of Jinan; Jinan 250022 P.R. China
| | - Xiao Wang
- School of Chemistry and Chemical Engineering; Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials; University of Jinan; Jinan 250022 P.R. China
| | - Qian Li
- School of Chemistry and Chemical Engineering; Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials; University of Jinan; Jinan 250022 P.R. China
| | - Xicheng Ma
- School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 P.R. China
| | - Yongxin Qi
- School of Material Science and Technology; Shandong University; Jinan 250100 P.R. China
| | - Lirong Zheng
- Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - James A. Anderson
- Materials and Chemical Engineering Group, School of Engineering; University of Aberdeen; Aberdeen AB24 3UE United Kingdom
| | - Zhaoliang Zhang
- School of Chemistry and Chemical Engineering; Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials; University of Jinan; Jinan 250022 P.R. China
| |
Collapse
|
8
|
Godiksen A, Vennestrøm PNR, Rasmussen SB, Mossin S. Identification and Quantification of Copper Sites in Zeolites by Electron Paramagnetic Resonance Spectroscopy. Top Catal 2016. [DOI: 10.1007/s11244-016-0731-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
9
|
Morpurgo S. A DFT study on Cu(I) coordination in Cu-ZSM-5: Effects of the functional choice and tuning of the ONIOM approach. J Comput Chem 2015; 36:660-9. [DOI: 10.1002/jcc.23843] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/07/2014] [Accepted: 01/02/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Simone Morpurgo
- Dipartimento di Chimica, Università degli Studi di Roma “La Sapienza,”; P.le Aldo Moro 5 00185 Roma Italia
| |
Collapse
|
10
|
Sajith PK, Shiota Y, Yoshizawa K. Role of Acidic Proton in the Decomposition of NO over Dimeric Cu(I) Active Sites in Cu-ZSM-5 Catalyst: A QM/MM Study. ACS Catal 2014. [DOI: 10.1021/cs500223z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. K. Sajith
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshihito Shiota
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| |
Collapse
|
11
|
Active Sites for Selective Catalytic Reduction. UREA-SCR TECHNOLOGY FOR DENOX AFTER TREATMENT OF DIESEL EXHAUSTS 2014. [DOI: 10.1007/978-1-4899-8071-7_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
12
|
Morpurgo S, Moretti G, Bossa M. A computational study on the mechanism of NO decomposition catalyzed by Cu-ZSM-5: A comparison between single and dimeric Cu+ active sites. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.03.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Wang L, Li W, Qi G, Weng D. Location and nature of Cu species in Cu/SAPO-34 for selective catalytic reduction of NO with NH3. J Catal 2012. [DOI: 10.1016/j.jcat.2012.01.012] [Citation(s) in RCA: 242] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
14
|
Morpurgo S, Moretti G, Bossa M. Basis set effects on Cu(I) coordination in Cu-ZSM-5: a computational study. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1180-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
15
|
Morpurgo S, Moretti G, Bossa M. A computational study on N2adsorption in Cu-ZSM-5. Phys Chem Chem Phys 2007; 9:417-24. [PMID: 17199158 DOI: 10.1039/b608411g] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present computational study investigates the adsorption of N(2) by Cu-ZSM-5, with particular regard to the interaction with pairs of Cu(+) ions, employing simple cluster models in the calculations. It shows that several interaction patterns between N(2) and couples of Cu(+) sites are possible within the Cu-ZSM-5 structure. In particular, when pairs of Cu(+) ions are located at opposite sides of ten-membered rings, in the region where linear and sinusoidal channels intersect each other, a quasi-linear Cu-N-N-Cu adsorption occurs. Although lattice restraints cause small deviations from linearity, such interaction turned out to be more favourable than other adsorption patterns within the Cu-ZSM-5 structure. The linearity of the Cu-N-N-Cu fragment and the relatively low concentration of the related sites cause a low extinction coefficient for the N-N IR stretching mode, which is usually detected with very low intensity or not detected at all. The results of the present calculations may explain the experimental evidence for a nearly IR-silent fraction of nitrogen strongly adsorbed in the Cu-ZSM-5 catalyst which, as shown in a previous work, is linearly related to the number of active sites for NO decomposition.
Collapse
Affiliation(s)
- Simone Morpurgo
- Dipartimento di Chimica, Università degli Studi di Roma La Sapienza, P. le A. Moro 5, 00185 Roma, Italia.
| | | | | |
Collapse
|
16
|
Correlation between the Cu/Al Value and Activity of Cu-ZSM-5 Catalysts and the Chemical Nature of the Starting Copper Salt. KINETICS AND CATALYSIS 2005. [DOI: 10.1007/s10975-005-0116-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
|
18
|
Delabie A, Pierloot K, Groothaert M, Schoonheydt R, Vanquickenborne L. The Coordination of CuII in Zeolites − Structure and Spectroscopic Properties. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200203)2002:3<515::aid-ejic515>3.0.co;2-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
A kinetic study of NO decomposition on Cu-ZSM5. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0167-2991(01)80167-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
20
|
Schay Z, James V, Pál-Borbély G, Beck A, Ramaswamy A, Guczi L. Decomposition and selective catalytic reduction of NO by propane on CuZSM-5 zeolites: a mechanistic study. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1169(00)00289-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
|
22
|
|
23
|
Dědeček J, Wichterlová B. Role of Hydrated Cu Ion Complexes and Aluminum Distribution in the Framework on the Cu Ion Siting in ZSM-5. J Phys Chem B 1997. [DOI: 10.1021/jp971776y] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiří Dědeček
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-182 23 Prague 8, Czech Republic
| | - Blanka Wichterlová
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-182 23 Prague 8, Czech Republic
| |
Collapse
|
24
|
Cu–Na–ZSM-5 Catalysts Prepared by Chemical Transport: Investigations on the Role of Brønsted Acidity and of Excess Copper in the Selective Catalytic Reduction of NO by Propene. J Catal 1997. [DOI: 10.1006/jcat.1997.1812] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
25
|
Curtin T, Grange P, Delmon B. The effect of pretreatments on different copper exchanged ZSM-5 for the decomposition of NO. Catal Today 1997. [DOI: 10.1016/s0920-5861(96)00196-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
26
|
|
27
|
|
28
|
Trout BL, Chakraborty AK, Bell AT. Analysis of the Thermochemistry of NOx Decomposition over CuZSM-5 Based on Quantum Chemical and Statistical Mechanical Calculations. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961470b] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bernhardt L. Trout
- Center for Advanced Materials, Materials Science Division, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| | - Arup K. Chakraborty
- Center for Advanced Materials, Materials Science Division, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| | - Alexis T. Bell
- Center for Advanced Materials, Materials Science Division, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| |
Collapse
|
29
|
Jang HJ, Hall WK, d'Itri JL. Redox Behavior of CuZSM-5 Catalysts: FTIR Investigations of Reactions of Adsorbed NO and CO. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp952525x] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H.-J. Jang
- Departments of Chemical Engineering and Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - W. Keith Hall
- Departments of Chemical Engineering and Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - Julie L. d'Itri
- Departments of Chemical Engineering and Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| |
Collapse
|
30
|
Fierro G, Eberhardt MA, Houalla M, Hercules DM, Hall WK. Redox Chemistry of CoZSM-5 Zeolite. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp960121e] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giuseppe Fierro
- Department of Chemistry, Chevron Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Mary A. Eberhardt
- Department of Chemistry, Chevron Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Marwan Houalla
- Department of Chemistry, Chevron Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - David M. Hercules
- Department of Chemistry, Chevron Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - W. Keith Hall
- Department of Chemistry, Chevron Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| |
Collapse
|
31
|
Trout BL, Chakraborty AK, Bell AT. Local Spin Density Functional Theory Study of Copper Ion-Exchanged ZSM-5. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9524744] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bernhardt L. Trout
- Center for Advanced Materials, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| | - Arup K. Chakraborty
- Center for Advanced Materials, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| | - Alexis T. Bell
- Center for Advanced Materials, Lawrence Berkeley National Laboratory, and Department of Chemical Engineering, University of California, Berkeley, California 94720
| |
Collapse
|
32
|
|
33
|
Zhang Y, Leo KM, Sarofim AF, Hu Z, Flytzani-Stephanopoulos M. Preparation effects on the activity of Cu-ZSM-5 catalysts for NO decomposition. Catal Letters 1995. [DOI: 10.1007/bf00817035] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
34
|
Dependence of selective reduction of NO with C3H6 on acid properties of ion-exchanged zeolites. Catal Letters 1995. [DOI: 10.1007/bf00808601] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
35
|
Wichterlová B, Deděček J, Tvarůžková Z. Cu coordination in zeolitic matrix. Relationship to nitric oxide binding and decomposition. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0167-2991(08)63703-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
|
36
|
Moretti G. Turnover frequency for NO decomposition over Cu-ZSM-5 catalysts: insight into the reaction mechanism. Catal Letters 1994. [DOI: 10.1007/bf00806043] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Iwamoto M. Zeolites in Environmental Catalysis. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0167-2991(08)63681-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
|
38
|
Structure, Chemistry and Activity of Well-Defined Cu-ZSM-5 Catalysts in The Selective Reduction of NOX. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0167-2991(08)63691-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
39
|
|
40
|
Xiao FS, Xu W, Qiu S, Xu R. The high dispersion of CuCl2 in NaZSM-5 by using microwave technique. Catal Letters 1994. [DOI: 10.1007/bf00824046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|