Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation
This paper presents the studies of effects of different Ni 2+ contents on the structural and thermal properties of carbosils prepared by deposition of carbon matter (starch gelation) on the silica gel (Si-50) matrix. These mesoporous materials were characterized by a varied pore structure with devel...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2015-08-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.6-8.539 |
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| author | Barbara Charmas |
| author_facet | Barbara Charmas |
| author_sort | Barbara Charmas |
| collection | DOAJ |
| description | This paper presents the studies of effects of different Ni 2+ contents on the structural and thermal properties of carbosils prepared by deposition of carbon matter (starch gelation) on the silica gel (Si-50) matrix. These mesoporous materials were characterized by a varied pore structure with developed surface and large pore volume. The porous structure of the initial silica gel and carbosils was characterized by the low-temperature nitrogen adsorption/desorption method as well as by pore-size distribution calculated from the calorimetric data by analyzing the thermal effects of liquid-phase transitions (water, n-decane and 1-decanol) confined in the pores of porous materials. The interfacial behaviour of different media confined incarbosil pores during the freezing/melting processes of obtained materials was studied. The results show that different catalyst contents have a significant effect on the porous structure formation. |
| format | Article |
| id | doaj-art-67a360c0ea9b41ffb211ec49a48f08f5 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2015-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-67a360c0ea9b41ffb211ec49a48f08f52025-01-02T23:11:47ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382015-08-013310.1260/0263-6174.33.6-8.539Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch GelationBarbara CharmasThis paper presents the studies of effects of different Ni 2+ contents on the structural and thermal properties of carbosils prepared by deposition of carbon matter (starch gelation) on the silica gel (Si-50) matrix. These mesoporous materials were characterized by a varied pore structure with developed surface and large pore volume. The porous structure of the initial silica gel and carbosils was characterized by the low-temperature nitrogen adsorption/desorption method as well as by pore-size distribution calculated from the calorimetric data by analyzing the thermal effects of liquid-phase transitions (water, n-decane and 1-decanol) confined in the pores of porous materials. The interfacial behaviour of different media confined incarbosil pores during the freezing/melting processes of obtained materials was studied. The results show that different catalyst contents have a significant effect on the porous structure formation.https://doi.org/10.1260/0263-6174.33.6-8.539 |
| spellingShingle | Barbara Charmas Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation Adsorption Science & Technology |
| title | Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation |
| title_full | Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation |
| title_fullStr | Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation |
| title_full_unstemmed | Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation |
| title_short | Characterization of Porosity and Thermal Properties of Ni-Doped Carbosils Obtained by Starch Gelation |
| title_sort | characterization of porosity and thermal properties of ni doped carbosils obtained by starch gelation |
| url | https://doi.org/10.1260/0263-6174.33.6-8.539 |
| work_keys_str_mv | AT barbaracharmas characterizationofporosityandthermalpropertiesofnidopedcarbosilsobtainedbystarchgelation |