发明名称 |
METHOD OF PRODUCING ZEOLITE ENCAPSULATED NANOPARTICLES |
摘要 |
The invention therefore relates to a method for producing zeolite, zeolite-like or zeotype encapsulated metal nanoparticles, the method comprises the steps of: 1) Adding one or more metal precursors to a silica or alumina source; 2) Reducing the one or more metal precursors to form metal nanoparticles on the surface of the silica or alumina source; 3) Passing a gaseous hydrocarbon, alkyl alcohol or alkyl ether over the silica or alumina supported metal nanoparticles to form a carbon template coated zeolite, zeolite-like or zeotype precursor composition; 4a) Adding a structure directing agent to the carbon template coated zeolite, zeolite-like or zeotype precursor composition thereby creating a zeolite, zeolite-like or zeotype gel composition; 4b) Crystallising the zeolite, zeolite-like or zeotype gel composition by subjecting said composition to a hydrothermal treatment; 5) Removing the carbon template and structure directing agent and isolating the resulting zeolite, zeolite-like or zeotype encapsulated metal nanoparticles. |
申请公布号 |
US2016129429(A1) |
申请公布日期 |
2016.05.12 |
申请号 |
US201414899460 |
申请日期 |
2014.07.07 |
申请人 |
Danmarks Tekniske Universitet |
发明人 |
Kegnæs Søren;Abildstrøm Jacob Oskar;Mielby Jerrik Jørgen;Gallas-Hulin Agata |
分类号 |
B01J29/064;C07C2/66;B01J37/10;C07C5/27;B01J29/076;B01J37/16 |
主分类号 |
B01J29/064 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing zeolite, zeolite-like or zeotype encapsulated metal nanoparticles, comprising:
1) Adding one or more metal precursors to a silica or alumina source; 2) Reducing the one or more metal precursors to form metal nanoparticles on the surface of the silica or alumina source; 3) Passing a gaseous hydrocarbon, alkyl alcohol or alkyl ether over the silica or alumina supported metal nanoparticles to form a carbon template coated zeolite, zeolite-like or zeotype precursor composition; 4a) Adding a structure directing agent to the carbon template coated zeolite, zeolite-like or zeotype precursor composition thereby creating a zeolite, zeolite-like or zeotype gel composition; 4b) Crystallising the zeolite, zeolite-like or zeotype gel composition by subjecting said composition to a hydrothermal treatment; and 5) Removing the carbon template and structure directing agent and isolating the resulting zeolite, zeolite-like or zeotype encapsulated metal nanoparticles; wherein the carbon template coated zeolite, zeolite-like or zeotype precursor composition of step 3 is used directly in step 4a without removing the silica or alumina source. |
地址 |
Lyngby kgs. DK |