Abstract
This study tailored a novel engineered biochar as a solid catalyst for glucose isomerization by pyrolyzing Sn-functionalized wood waste under varying hypothesis-driven selected conditions (i.e., 650, 750, and 850 °C in N 2 and CO 2 atmosphere). The results showed that properties of biochar support (e.g., porosity and acid/base property) and chemical speciation of Sn were highly related to their catalytic performance. Variations in pyrolysis temperature and feed gas modified the porous structure and surface functionality of biochar as well as the valence state of doped Sn on the biochar. For the N 2 biochars, higher pyrolysis temperature enhanced the fructose yield yet had trivial effect on the selectivity, where 12.1 mol % fructose can be obtained at 150 °C and 20 min using biochar produced at 850 °C. This was plausibly attributed to the increased fraction of amorphous Sn structures and metallic Sn that were more reactive than its oxide form. At the pyrolysis temperature of 750 °C, the use of CO 2 increased the surface area by 40%, enlarged the pore volume from 0.062 to 0.107 cm 3 g -1 , and enriched the amorphous Sn structures compared to those for N 2 biochar. This probably accounted for the better catalytic performance of CO 2 biochar than that of N 2 biochar (50% and 100% enhancement in fructose yield and selectivity, respectively). The Sn-biochar catalysts may have promoted glucose isomerization via both the Lewis acid and Brønsted base pathways. This study paves a new way to design biochar as a sustainable and low-cost solid catalyst for biorefinery applications.
| Original language | English |
|---|---|
| Pages (from-to) | 4851-4860 |
| Number of pages | 10 |
| Journal | ACS Sustainable Chemistry and Engineering |
| Volume | 7 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2019 Mar 4 |
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Keywords
- Biobased value-added chemicals
- Engineered biochar
- Lewis acid
- Lignocellulosic biomass
- Sugar conversion
- Waste valorization/recycling
ASJC Scopus subject areas
- Chemistry(all)
- Environmental Chemistry
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
Cite this
Tin-Functionalized Wood Biochar as a Sustainable Solid Catalyst for Glucose Isomerization in Biorefinery. / Yang, Xiao; Yu, Iris K.M.; Cho, Dong Wan; Chen, Season S.; Tsang, Daniel C.W.; Shang, Jin; Yip, Alex C.K.; Wang, Lei; Ok, Yong Sik.
In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 5, 04.03.2019, p. 4851-4860.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tin-Functionalized Wood Biochar as a Sustainable Solid Catalyst for Glucose Isomerization in Biorefinery
AU - Yang, Xiao
AU - Yu, Iris K.M.
AU - Cho, Dong Wan
AU - Chen, Season S.
AU - Tsang, Daniel C.W.
AU - Shang, Jin
AU - Yip, Alex C.K.
AU - Wang, Lei
AU - Ok, Yong Sik
PY - 2019/3/4
Y1 - 2019/3/4
N2 - This study tailored a novel engineered biochar as a solid catalyst for glucose isomerization by pyrolyzing Sn-functionalized wood waste under varying hypothesis-driven selected conditions (i.e., 650, 750, and 850 °C in N 2 and CO 2 atmosphere). The results showed that properties of biochar support (e.g., porosity and acid/base property) and chemical speciation of Sn were highly related to their catalytic performance. Variations in pyrolysis temperature and feed gas modified the porous structure and surface functionality of biochar as well as the valence state of doped Sn on the biochar. For the N 2 biochars, higher pyrolysis temperature enhanced the fructose yield yet had trivial effect on the selectivity, where 12.1 mol % fructose can be obtained at 150 °C and 20 min using biochar produced at 850 °C. This was plausibly attributed to the increased fraction of amorphous Sn structures and metallic Sn that were more reactive than its oxide form. At the pyrolysis temperature of 750 °C, the use of CO 2 increased the surface area by 40%, enlarged the pore volume from 0.062 to 0.107 cm 3 g -1 , and enriched the amorphous Sn structures compared to those for N 2 biochar. This probably accounted for the better catalytic performance of CO 2 biochar than that of N 2 biochar (50% and 100% enhancement in fructose yield and selectivity, respectively). The Sn-biochar catalysts may have promoted glucose isomerization via both the Lewis acid and Brønsted base pathways. This study paves a new way to design biochar as a sustainable and low-cost solid catalyst for biorefinery applications.
AB - This study tailored a novel engineered biochar as a solid catalyst for glucose isomerization by pyrolyzing Sn-functionalized wood waste under varying hypothesis-driven selected conditions (i.e., 650, 750, and 850 °C in N 2 and CO 2 atmosphere). The results showed that properties of biochar support (e.g., porosity and acid/base property) and chemical speciation of Sn were highly related to their catalytic performance. Variations in pyrolysis temperature and feed gas modified the porous structure and surface functionality of biochar as well as the valence state of doped Sn on the biochar. For the N 2 biochars, higher pyrolysis temperature enhanced the fructose yield yet had trivial effect on the selectivity, where 12.1 mol % fructose can be obtained at 150 °C and 20 min using biochar produced at 850 °C. This was plausibly attributed to the increased fraction of amorphous Sn structures and metallic Sn that were more reactive than its oxide form. At the pyrolysis temperature of 750 °C, the use of CO 2 increased the surface area by 40%, enlarged the pore volume from 0.062 to 0.107 cm 3 g -1 , and enriched the amorphous Sn structures compared to those for N 2 biochar. This probably accounted for the better catalytic performance of CO 2 biochar than that of N 2 biochar (50% and 100% enhancement in fructose yield and selectivity, respectively). The Sn-biochar catalysts may have promoted glucose isomerization via both the Lewis acid and Brønsted base pathways. This study paves a new way to design biochar as a sustainable and low-cost solid catalyst for biorefinery applications.
KW - Biobased value-added chemicals
KW - Engineered biochar
KW - Lewis acid
KW - Lignocellulosic biomass
KW - Sugar conversion
KW - Waste valorization/recycling
UR - http://www.scopus.com/inward/record.url?scp=85062154160&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062154160&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.8b05311
DO - 10.1021/acssuschemeng.8b05311
M3 - Article
AN - SCOPUS:85062154160
VL - 7
SP - 4851
EP - 4860
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
SN - 2168-0485
IS - 5
ER -