Preparation and properties of biomorphic potassium-based geopolymer (KGP)-biocarbon (CB) composite

Min Yu; Enrico Bernardo; Paolo Colombo; Acacio R. Romero; Peter Tatarko; Vasanth K. Kannuchamy; Maria Magdalena Titirici; Elinor G. Castle; Olivier T. Picot; Michael J. Reece

doi:10.1016/j.ceramint.2018.04.111

Preparation and properties of biomorphic potassium-based geopolymer (KGP)-biocarbon (C_B) composite

Min Yu^*
, Enrico Bernardo
, Paolo Colombo
, Acacio R. Romero
, Peter Tatarko
, Vasanth K. Kannuchamy
, Maria Magdalena Titirici
, Elinor G. Castle
, Olivier T. Picot
, Michael J. Reece

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Anisotropic, biomorphic (wood-derived) potassium-based geopolymer (KGP) - biocarbon (C_B) composites with net shape were manufactured by infiltrating KGP slurry into monolithic porous biocarbon (C_B) structures (~77 vol% porosity) derived from pyrolyzing beech wood. About 70% of the pores in the three-dimensional (3D) C_B structures were infiltrated by the KGP slurry. Compared to pure KGP, the energy absorption per unit volume in compression loading of the KGP-C_B composites was increased by ten-fold. After heat treatment at 1000 °C for 1 h in N₂, the compressive strength of the KGP-C_B composites increased from ~7–24 MPa, accompanied by the formation of crystalline leucite (K₂O·Al₂O₃·4SiO₂) phase in the KGP. The KGP-C_B composite also exhibited three orders higher electrical conductivity than pure KGP. The effect of temperature on the formation of crystalline phases in KGP and KGP-C_B composites was investigated. FTIR, TGA and SEM analyses were used to investigate the changes in microstructures and phase formation during thermal treatment.

Original language	English
Pages (from-to)	12957-12964
Number of pages	8
Journal	Ceramics International
Volume	44
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2018.04.111
Publication status	Published - 1 Aug 2018
Externally published	Yes

Keywords

Biocarbon
Composite
Geopolymer
Mechanical properties

Access to Document

10.1016/j.ceramint.2018.04.111

Cite this

@article{08945ed66c924b81980834d3a84fa800,

title = "Preparation and properties of biomorphic potassium-based geopolymer (KGP)-biocarbon (CB) composite",

abstract = "Anisotropic, biomorphic (wood-derived) potassium-based geopolymer (KGP) - biocarbon (CB) composites with net shape were manufactured by infiltrating KGP slurry into monolithic porous biocarbon (CB) structures (\textasciitilde{}77 vol\% porosity) derived from pyrolyzing beech wood. About 70\% of the pores in the three-dimensional (3D) CB structures were infiltrated by the KGP slurry. Compared to pure KGP, the energy absorption per unit volume in compression loading of the KGP-CB composites was increased by ten-fold. After heat treatment at 1000 °C for 1 h in N2, the compressive strength of the KGP-CB composites increased from \textasciitilde{}7–24 MPa, accompanied by the formation of crystalline leucite (K2O·Al2O3·4SiO2) phase in the KGP. The KGP-CB composite also exhibited three orders higher electrical conductivity than pure KGP. The effect of temperature on the formation of crystalline phases in KGP and KGP-CB composites was investigated. FTIR, TGA and SEM analyses were used to investigate the changes in microstructures and phase formation during thermal treatment.",

keywords = "Biocarbon, Composite, Geopolymer, Mechanical properties",

author = "Min Yu and Enrico Bernardo and Paolo Colombo and Romero, \{Acacio R.\} and Peter Tatarko and Kannuchamy, \{Vasanth K.\} and Titirici, \{Maria Magdalena\} and Castle, \{Elinor G.\} and Picot, \{Olivier T.\} and Reece, \{Michael J.\}",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = aug,

day = "1",

doi = "10.1016/j.ceramint.2018.04.111",

language = "English",

volume = "44",

pages = "12957--12964",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd.",

number = "11",

}

TY - JOUR

T1 - Preparation and properties of biomorphic potassium-based geopolymer (KGP)-biocarbon (CB) composite

AU - Yu, Min

AU - Bernardo, Enrico

AU - Colombo, Paolo

AU - Romero, Acacio R.

AU - Tatarko, Peter

AU - Kannuchamy, Vasanth K.

AU - Titirici, Maria Magdalena

AU - Castle, Elinor G.

AU - Picot, Olivier T.

AU - Reece, Michael J.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Anisotropic, biomorphic (wood-derived) potassium-based geopolymer (KGP) - biocarbon (CB) composites with net shape were manufactured by infiltrating KGP slurry into monolithic porous biocarbon (CB) structures (~77 vol% porosity) derived from pyrolyzing beech wood. About 70% of the pores in the three-dimensional (3D) CB structures were infiltrated by the KGP slurry. Compared to pure KGP, the energy absorption per unit volume in compression loading of the KGP-CB composites was increased by ten-fold. After heat treatment at 1000 °C for 1 h in N2, the compressive strength of the KGP-CB composites increased from ~7–24 MPa, accompanied by the formation of crystalline leucite (K2O·Al2O3·4SiO2) phase in the KGP. The KGP-CB composite also exhibited three orders higher electrical conductivity than pure KGP. The effect of temperature on the formation of crystalline phases in KGP and KGP-CB composites was investigated. FTIR, TGA and SEM analyses were used to investigate the changes in microstructures and phase formation during thermal treatment.

AB - Anisotropic, biomorphic (wood-derived) potassium-based geopolymer (KGP) - biocarbon (CB) composites with net shape were manufactured by infiltrating KGP slurry into monolithic porous biocarbon (CB) structures (~77 vol% porosity) derived from pyrolyzing beech wood. About 70% of the pores in the three-dimensional (3D) CB structures were infiltrated by the KGP slurry. Compared to pure KGP, the energy absorption per unit volume in compression loading of the KGP-CB composites was increased by ten-fold. After heat treatment at 1000 °C for 1 h in N2, the compressive strength of the KGP-CB composites increased from ~7–24 MPa, accompanied by the formation of crystalline leucite (K2O·Al2O3·4SiO2) phase in the KGP. The KGP-CB composite also exhibited three orders higher electrical conductivity than pure KGP. The effect of temperature on the formation of crystalline phases in KGP and KGP-CB composites was investigated. FTIR, TGA and SEM analyses were used to investigate the changes in microstructures and phase formation during thermal treatment.

KW - Biocarbon

KW - Composite

KW - Geopolymer

KW - Mechanical properties

UR - https://www.scopus.com/pages/publications/85045717823

U2 - 10.1016/j.ceramint.2018.04.111

DO - 10.1016/j.ceramint.2018.04.111

M3 - Article

AN - SCOPUS:85045717823

SN - 0272-8842

VL - 44

SP - 12957

EP - 12964

JO - Ceramics International

JF - Ceramics International

IS - 11

ER -

Preparation and properties of biomorphic potassium-based geopolymer (KGP)-biocarbon (C_B) composite

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this