Robocasting of controlled porous CaSiO3–SiO2 structures: Architecture – Strength relationship and material catalytic behavior

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU135097" target="_blank" >RIV/00216305:26620/20:PU135097 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85077009775&origin=resultslist&sort=plf-f&src=s&st1=10.1016%2fj.ceramint.2019.12.130&st2=&sid=b200761dff92612bf0b66edb5ed21b78&sot=b&sdt=b&sl=35&s=DOI%2810.1016%2fj.ceramint.2019.12.130%29&relpos=0&cit" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85077009775&origin=resultslist&sort=plf-f&src=s&st1=10.1016%2fj.ceramint.2019.12.130&st2=&sid=b200761dff92612bf0b66edb5ed21b78&sot=b&sdt=b&sl=35&s=DOI%2810.1016%2fj.ceramint.2019.12.130%29&relpos=0&cit</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2019.12.130" target="_blank" >10.1016/j.ceramint.2019.12.130</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Robocasting of controlled porous CaSiO3–SiO2 structures: Architecture – Strength relationship and material catalytic behavior

Popis výsledku v původním jazyce

Wollastonite (CaSiO3) based porous structures are useful in a wide range of applications including catalysis. Furthermore, the use of additive manufacturing techniques for the production of on-demand structures with controlled porosity are widely used for numerous materials. In the present work, CaSiO3 was synthesized by co-precipitation method resulting in a fine CaSiO3–SiO2 powder, which was processed to fabricate regular porous structures using the robocasting technique. Cylindrical structures of 10 mm in diameter and 10 mm in height were robocast following two different arrangement patterns, i.e., orthogonal and honeycomb with two different pore sizes (350 and 500 μm). In general, the orthogonal structures showed better geometrical and dimensional accuracy than honeycomb ones. The compression test showed that orthogonal structures were more reliable, while the honeycomb structures exhibited higher compressive strength. The reasons are on the differences in porosity and pore architecture between them. Additionally, the catalytic properties of the CaSiO3–SiO2 powder were studied by the decomposition of isopropyl alcohol. The CaSiO3–SiO2 showed strong selective basic catalytic properties, leading on the dehydrogenation of the alcohol producing acetone with a yield up to 92% at 350 °C. In summary, the CaSiO3–SiO2 robocast structures have a significant potential for self-supporting catalytic reactors. © 2019 Elsevier Ltd and Techna Group S.r.l.

Název v anglickém jazyce

Robocasting of controlled porous CaSiO3–SiO2 structures: Architecture – Strength relationship and material catalytic behavior

Popis výsledku anglicky

Wollastonite (CaSiO3) based porous structures are useful in a wide range of applications including catalysis. Furthermore, the use of additive manufacturing techniques for the production of on-demand structures with controlled porosity are widely used for numerous materials. In the present work, CaSiO3 was synthesized by co-precipitation method resulting in a fine CaSiO3–SiO2 powder, which was processed to fabricate regular porous structures using the robocasting technique. Cylindrical structures of 10 mm in diameter and 10 mm in height were robocast following two different arrangement patterns, i.e., orthogonal and honeycomb with two different pore sizes (350 and 500 μm). In general, the orthogonal structures showed better geometrical and dimensional accuracy than honeycomb ones. The compression test showed that orthogonal structures were more reliable, while the honeycomb structures exhibited higher compressive strength. The reasons are on the differences in porosity and pore architecture between them. Additionally, the catalytic properties of the CaSiO3–SiO2 powder were studied by the decomposition of isopropyl alcohol. The CaSiO3–SiO2 showed strong selective basic catalytic properties, leading on the dehydrogenation of the alcohol producing acetone with a yield up to 92% at 350 °C. In summary, the CaSiO3–SiO2 robocast structures have a significant potential for self-supporting catalytic reactors. © 2019 Elsevier Ltd and Techna Group S.r.l.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

1873-3956

Svazek periodika

46

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

8853-8861

Kód UT WoS článku

000528340500041

EID výsledku v databázi Scopus

2-s2.0-85077009775