Carbonization and activation of leather buffing dust to a biocarbon and its conductivity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10506762" target="_blank" >RIV/00216208:11320/25:10506762 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/25:43932969 RIV/60461373:22810/25:43932969

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pi-d2_9d2m" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pi-d2_9d2m</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biombioe.2025.107742" target="_blank" >10.1016/j.biombioe.2025.107742</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbonization and activation of leather buffing dust to a biocarbon and its conductivity

Popis výsledku v původním jazyce

Buffing dust, one of the collagenous wastes produced in the footwear industry, was carbonized at 400-1200 degrees C in an inert atmosphere to microfibrous nitrogen-containing biocarbons enriched with chromium. The evolution of molecular microstructure with increasing carbonization temperature or exposure time was followed with FTIR and Raman spectra. The resistivity of the powdered products was determined by van der Pauw four-point method and recorded as a function of applied pressure in the 0.1-10 MPa range. The highest conductivity 13.9 S cm- 1 at 10 MPa was found after the carbonization at 1200 degrees C. The mechanical properties, such as the change of sample volume with applied pressure, are also discussed. The specific surface area was low, ca 5-7 m2g-1, independent of the carbonization temperature. This parameter was enhanced by the chemical activation with ammonium peroxydisulfate or potassium hydroxide by two orders of magnitude, while the conductivity decreased at the same time by less than one order of magnitude.

Název v anglickém jazyce

Carbonization and activation of leather buffing dust to a biocarbon and its conductivity

Popis výsledku anglicky

Buffing dust, one of the collagenous wastes produced in the footwear industry, was carbonized at 400-1200 degrees C in an inert atmosphere to microfibrous nitrogen-containing biocarbons enriched with chromium. The evolution of molecular microstructure with increasing carbonization temperature or exposure time was followed with FTIR and Raman spectra. The resistivity of the powdered products was determined by van der Pauw four-point method and recorded as a function of applied pressure in the 0.1-10 MPa range. The highest conductivity 13.9 S cm- 1 at 10 MPa was found after the carbonization at 1200 degrees C. The mechanical properties, such as the change of sample volume with applied pressure, are also discussed. The specific surface area was low, ca 5-7 m2g-1, independent of the carbonization temperature. This parameter was enhanced by the chemical activation with ammonium peroxydisulfate or potassium hydroxide by two orders of magnitude, while the conductivity decreased at the same time by less than one order of magnitude.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Biomass and Bioenergy

ISSN

0961-9534

e-ISSN

1873-2909

Svazek periodika

196

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

107742

Kód UT WoS článku

001435495200001

EID výsledku v databázi Scopus

2-s2.0-85218406759