Oxide supported platinum atoms and nanoparticles: preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
München
Verl. Dr. Hut
2012
|
| Ausgabe: | 1. Aufl. |
| Schriftenreihe: | Anorganische Chemie
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 121 S. graph. Darst. |
| ISBN: | 9783843905053 |
Internformat
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| 245 | 1 | 0 | |a Oxide supported platinum atoms and nanoparticles |b preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane |c Konstantinos Chatziapostolou |
| 250 | |a 1. Aufl. | ||
| 264 | 1 | |a München |b Verl. Dr. Hut |c 2012 | |
| 300 | |a 121 S. |b graph. Darst. | ||
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| 502 | |a Zugl.: München, Techn. Univ., Diss., 2012 | ||
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Datensatz im Suchindex
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| adam_text | IMAGE 1
TABLE OF CONTENTS
1 CHALLENGES IN CATALYST DESIGN FOR INDUSTRIAL PROCESSES 1
1.1 CATALYSIS OVER PLATINUM 2
1.2 DISPERSION OF PIATINUM ON SUPPORTED CATALYSTS 2
1.3 TYPES OF CATALYST DEACTIVATION 3
1.4 GREEN CHEMISTRY AND CATALYTIC ABATEMENT OF NITROGEN OXIDES 5
1.5 AIM AND MOTIVATION OF THIS WORK 7
2 PREPARATION AND THERMAL STABILITY OF HIGHLY DISPERSED OXIDE SUPPORTED
NOBLE
METALS 9
2.1 THEORETICAL BACKGROUND AND MOTIVATION 10
2.1.1 ROLE OF NOBLE METAL DISPERSION IN CATALYTIC REACTIONS 10
2.1.2 METHODS FOR DETERMINATION OF METAL DISPERSION 11
2.1.3 PREPARATION OF OXIDE SUPPORTED HETEROGENEOUS CATALYSTS:
CAPILLARY IMPREGNATION AND EQUILIBRIUM EXCHANGE VERSUS GRAFTING 13
2.1.4 GRAFTING: STATE OF T H E A R T 16
2.1.5 SINTERING AND REDISPERSION PHENOMENA 17
2.1.6 MOTIVATION 19
2.2 PREPARATION OF CATALYSTS WITH DEFINED HIGH NOBLE METAL DISPERSION
AND
INVESTIGATION OF SINTERING PHENOMENA 19
2.2.1 CATALYSTS PREPARED BY CAPILLARY IMPREGNATION 20
2.2.2 CATALYSTS THAT WERE PREPARED BY EQUILIBRIUM EXCHANGE 24
2.2.3 GRAFTING OF PLATINUM ORGANOMETALLIC COMPLEXES ONTO OXIDE SUPPORTS
28
2.2.3.1 ADJUSTMENT OF THE LOADING 29
2.2.3.2 NOBLE METAL DISPERSION OF THE CATALYSTS THAT WERE PREPARED BY
GRAFTING 31
2.2.3.3 PLATINUM INTERACTIONS WITH ITS SURROUNDING ATOMS: INVESTIGATION
WITH IN SITU
FT-IR SPECTROSCOPY 32
2.2.3.4 THERMAL TREATMENTS 35
2.2.4 IMPACT OF THE THERMAL TREATMENTS ON THE NOBLE METAL DISPERSION - A
SUMMARIZING DISCUSSION 45
2.2.5 OXIDE SUPPORTED PD CATALYSTS SYNTHESIZED BY GRAFTING. IMPACT OF
THE PRECURSOR
AND THE SUPPORT ON THE LOADING AND THE DISPERSION 50
2.3 CATALYTIC PROPERTIES OF CATALYSTS PREPARED BY GRAFTING 54
HTTP://D-NB.INFO/1023999552
IMAGE 2
TABLE OF CONTENTS
2.3.1 NO OXIDATION OVER HIGHLY DISPERSED PT/AL 203 54
2.3.2 SELECTIVE CATALYTIC REDUCTION OF NO USING CH 4 AS REDUCING AGENT
56
2.3.3 CH 4 OXIDATION OVER HIGHLY DISPERSED PT/SI02 58
2.4 ASSOCIATION OF THE METAL DISPERSION TO THE CATALYTIC ACTIVITY - A
SUMMARIZING DISCUSSION 61
2.5 CONCLUSIONS 63
3 SELECTIVE CATALYTIC REDUCTION OF NO BY CH 4 O V E R OXIDE SUPPORTED
PLATINUM
CATALYSTS 65
3.1 INTRODUCTION 66
3.1.1 SELECTIVE CATALYTIC REDUCTION (SCR) OF NO BY CH 4 66
3.1.2 SELECTIVE CATALYTIC REDUCTION OF NO/NO2 MIXTURES: FAST-SCR 67
3.1.3 AIM OF THIS PART OF THE WORK 68
3.2 CATALYTIC ACTIVITY 69
3.2.1 IMPACT OF THE CH 4/NO RATIO ON THE CATALYTIC ACTIVITY 69
3.2.2 TRANSFORMATION OF NO AND CH 4 UNDER STEADY-STATE CONDITIONS 71
3.2.3 STOICHIOMETRY OF THE REACTION 73
3.2.4 ROLE OF OXYGEN IN THE REACTION 73
3.2.5 INVESTIGATION OF THE ROLE OF OXYGEN BY IN SITU INFRARED
SPECTROSCOPY 74
3.2.5.1 ADSORPTION OF NO AND CH 4 ON PT/SI02 75
3.2.5.2 SELECTIVE CATALYTIC REDUCTION OF NO BY CH 4 OVER PT/SI02 IN
ABSENCE
OF OXYGEN 79
3.2.5.3 SELECTIVE CATALYTIC REDUCTION OF NO BY CH 4 OVER PT/SI02 IN
PRESENCE
OF OXYGEN 82
3.2.6 FAST-SCR WITH CH 4 83
3.2.7 DISCUSSION OF THE ROLE OF 0 2 AND N 0 2 - REACTION MECHANISM 85
3.2.8 VARIATION OF THE SUPPORT 88
3.3 CONCLUSIONS 94
4 SUMMARY 95
5 ZUSAMMENFASSUNG 99
IMAGE 3
TABLE O F C O N T E N T S
6 EXPERIMENTAL SECTION 103
6.1 GENERAL 104
6.2 CATALYST PREPARATION 104
6.2.1 PRELIMINARY TREATMENTS OF THE SUPPORT 104
6.2.2 CAPILLARY IMPREGNATION 105
6.2.3 EQUILIBRIUM EXCHANGE 106
6.2.4 GRAFTING 106
6.3 CHARACTERIZATION METHODS 107
6.3.1 QUANTITATIVE GAS ANALYSIS 107
6.3.2 DISPERSION DETERMINATION 107
6.3.3 ELEMENTAL ANALYSIS 108
6.3.4 N 2 PHYSISORPTION 109
6.3.5 TEMPERATURE PROGRAMMED REDUCTION 109
6.4 GAS-PHASE CATALYTIC EXPERIMENTS 110
6.4.1 DESCRIPTION OF THE APPARATUS 110
6.4.2 CATALYTIC PROCEDURES 111
6.5 IN SITU IR-STUDIES 112
6.5.1 PREPARATION OF SELF-SUPPORTING PELLETS 112
6.5.2 DESCRIPTION OF THE EXPERIMENTAL APPARATUS 112
6.5.3 EXPERIMENTAL PROCEDURES 113
7 REFERENCES 114
|
| any_adam_object | 1 |
| author | Chatziapostolou, Konstantinos 20./21. Jh |
| author_GND | (DE-588)1027250564 |
| author_facet | Chatziapostolou, Konstantinos 20./21. Jh |
| author_role | aut |
| author_sort | Chatziapostolou, Konstantinos 20./21. Jh |
| author_variant | k c kc |
| building | Verbundindex |
| bvnumber | BV040432713 |
| classification_tum | CHE 376d CHE 167d |
| ctrlnum | (OCoLC)815927110 (DE-599)BVBBV040432713 |
| discipline | Physik Chemie |
| edition | 1. Aufl. |
| format | Thesis Book |
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| indexdate | 2024-07-10T00:23:53Z |
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| isbn | 9783843905053 |
| language | English |
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| physical | 121 S. graph. Darst. |
| publishDate | 2012 |
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| publisher | Verl. Dr. Hut |
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| series2 | Anorganische Chemie |
| spelling | Chatziapostolou, Konstantinos 20./21. Jh. Verfasser (DE-588)1027250564 aut Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane Konstantinos Chatziapostolou 1. Aufl. München Verl. Dr. Hut 2012 121 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Anorganische Chemie Zugl.: München, Techn. Univ., Diss., 2012 Immobilisierung (DE-588)4123417-0 gnd rswk-swf Katalysator (DE-588)4029919-3 gnd rswk-swf Oxide (DE-588)4126202-5 gnd rswk-swf Platin (DE-588)4174856-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Platin (DE-588)4174856-6 s Immobilisierung (DE-588)4123417-0 s Oxide (DE-588)4126202-5 s Katalysator (DE-588)4029919-3 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025285229&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Chatziapostolou, Konstantinos 20./21. Jh Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane Immobilisierung (DE-588)4123417-0 gnd Katalysator (DE-588)4029919-3 gnd Oxide (DE-588)4126202-5 gnd Platin (DE-588)4174856-6 gnd |
| subject_GND | (DE-588)4123417-0 (DE-588)4029919-3 (DE-588)4126202-5 (DE-588)4174856-6 (DE-588)4113937-9 |
| title | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane |
| title_auth | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane |
| title_exact_search | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane |
| title_full | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane Konstantinos Chatziapostolou |
| title_fullStr | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane Konstantinos Chatziapostolou |
| title_full_unstemmed | Oxide supported platinum atoms and nanoparticles preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane Konstantinos Chatziapostolou |
| title_short | Oxide supported platinum atoms and nanoparticles |
| title_sort | oxide supported platinum atoms and nanoparticles preparation characterisation atom mobility and catalytic properties in the reduction of nitric oxide by methane |
| title_sub | preparation, characterisation, atom mobility and catalytic properties in the reduction of nitric oxide by methane |
| topic | Immobilisierung (DE-588)4123417-0 gnd Katalysator (DE-588)4029919-3 gnd Oxide (DE-588)4126202-5 gnd Platin (DE-588)4174856-6 gnd |
| topic_facet | Immobilisierung Katalysator Oxide Platin Hochschulschrift |
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