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Sulfonic acid-functionalized platelet SBA-15 materials as efficient catalysts for biodiesel synthesis
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Shih-Yuan Yokoi, Toshiyuki Tang, Chih-Yuan Jang, Ling-Yun Tatsumi, Takashi Chan, Jerry C. C. Cheng, Soofin |
| Copyright Year | 2011 |
| Abstract | Sulfonic acid-functionalized platelet SBA-15 materials (SA-SBA-15-p) with ordered short mesochannels (150–350 nm) and acid capacities up to 1.2 mmol H+ g−1 were synthesized by one-pot co-condensation of tetraethyl orthosilicate (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) in the presence of appropriate amounts of Zr(IV) ions and H2O2. The SA-SBA-15-p materials were efficient catalysts for biodiesel synthesis through esterification of long chain carboxylic acids with methanol. The short-channel SA-SBA-15 materials showed higher catalytic activities than the conventional rod-like or fiber-like analogues, due to better molecular diffusion. Moreover, the used SA-SBA-15-p materials could be easily regenerated by ethanol extraction and the catalytic activities were retained after several recycle runs. In comparison to Amberlyst 15 resin, SA-SBA-15-p materials were superior considering the reaction rates per acid site because of the high accessibility of the sulfonic acid sites in the well-ordered large mesopores (ca. 7 nm) to the reactant molecules. Moreover, SA-SBA-15-p also showed better tolerance to small amounts of water in the reaction system than Amberlyst 15 resin. |
| Starting Page | 2920 |
| Ending Page | 2930 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c1gc15299h |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/gc/c1/c1gc15299h/c1gc15299h.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c1gc15299h |
| Volume Number | 13 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
