Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization

Yongsoon Shin, Jun Liu, Li Qiong Wang, Jeong Ho Chang, William D. Samuels, Larry R. Pederson, Gregory J. Exarhos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We here report the synthesis of ordered ceramic materials with hierarchy produced by an in-situ mineralization of ordered wood cellular structures with surfactant-templated sol-gel at different pH. At low pH, a silicic acid is coated onto inner surface of wood cellular structure and it penetrates into pores left, where degraded lignin and hemicellulose are leached out, to form a positive replica, while at high pH the precipitating silica particles due to fast condensation clog the cells and pit structures to form a negative replica of wood. The calcined monoliths produced in different phs contain ordered wood cellular structures, multi-layered cell walls, pits, vessels well-preserved with positive or negative contrasts, respectively. The surfactant-templated mineralization produces ordered hexagonal nanopores with 20Å in the cell walls after calcination.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsC Sanchez, R.M. Laine, S Yang, C.J. Brinker
Pages85-90
Number of pages6
Volume726
Publication statusPublished - 2002
Externally publishedYes
EventOrganic/Inorganic Hybrid Materials 2002 - San Francisco, CA, United States
Duration: 1 Apr 20025 Apr 2002

Other

OtherOrganic/Inorganic Hybrid Materials 2002
CountryUnited States
CitySan Francisco, CA
Period1/4/025/4/02

Fingerprint

Surface-Active Agents
Sol-gels
Wood
Surface active agents
Cells
Silicic Acid
Nanopores
Lignin
Ceramic materials
Silicon Dioxide
Calcination
Condensation
Silica
Acids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Shin, Y., Liu, J., Wang, L. Q., Chang, J. H., Samuels, W. D., Pederson, L. R., & Exarhos, G. J. (2002). Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization. In C. Sanchez, R. M. Laine, S. Yang, & C. J. Brinker (Eds.), Materials Research Society Symposium - Proceedings (Vol. 726, pp. 85-90)

Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization. / Shin, Yongsoon; Liu, Jun; Wang, Li Qiong; Chang, Jeong Ho; Samuels, William D.; Pederson, Larry R.; Exarhos, Gregory J.

Materials Research Society Symposium - Proceedings. ed. / C Sanchez; R.M. Laine; S Yang; C.J. Brinker. Vol. 726 2002. p. 85-90.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shin, Y, Liu, J, Wang, LQ, Chang, JH, Samuels, WD, Pederson, LR & Exarhos, GJ 2002, Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization. in C Sanchez, RM Laine, S Yang & CJ Brinker (eds), Materials Research Society Symposium - Proceedings. vol. 726, pp. 85-90, Organic/Inorganic Hybrid Materials 2002, San Francisco, CA, United States, 1/4/02.
Shin Y, Liu J, Wang LQ, Chang JH, Samuels WD, Pederson LR et al. Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization. In Sanchez C, Laine RM, Yang S, Brinker CJ, editors, Materials Research Society Symposium - Proceedings. Vol. 726. 2002. p. 85-90
Shin, Yongsoon ; Liu, Jun ; Wang, Li Qiong ; Chang, Jeong Ho ; Samuels, William D. ; Pederson, Larry R. ; Exarhos, Gregory J. / Control of hierarchically ordered positive and negative replicas of wood cellular structures by surfactant-directed sol-gel mineralization. Materials Research Society Symposium - Proceedings. editor / C Sanchez ; R.M. Laine ; S Yang ; C.J. Brinker. Vol. 726 2002. pp. 85-90
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