Porous materials having a sulfur nanostructured yolk and a carbonized metal organic framework shell and uses thereof
AssigneeSabic Global Technologies B.V.
InventorsYunyang LIU, Ihab N. ODEH
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Abstract
Porous carbon materials having a yolk-shell structure, methods of making and uses thereof are described. The porous carbon materials can have a sulfur-based yolk positioned within a hollow space of by a porous carbonized metal organic framework (MOF) shell.
Claims20
A porous material having a yolk-shell type structure, the porous material comprising a sulfur-based material positioned within a hollow space of a porous carbonized metal organic framework (MOF) shell wherein the porous carbonized MOF shell is doped with nitrogen.
A method of producing a porous material having a yolk-shell structure, the method comprising:
- (a) combining an organic framework precursor with a suspension comprising zinc oxide (ZnO) under conditions suitable to produce a metal organic framework (MOF) material comprising a ZnO core and an organic framework shell, wherein the organic framework shell encompasses the ZnO core;
- (b) heat-treating the MOF material under conditions sufficient to carbonize the organic framework shell to produce a core-shell material comprising a ZnO core and a porous carbonized shell;
- (c) subjecting the ZnO core-porous carbonized shell material of step (b) to conditions sufficient to remove the ZnO and form a hollow porous carbonized shell material;
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- (d) incorporating a sulfur-based material within the hollow space of the carbonized shell to form a yolk-shell structure having a sulfur-based nanostructure positioned within the hollow space of the porous carbonized shell.
Dependencies are inferred from the claim text.