Table 1 Physical and chemical properties of biochars

From: Promoting Interspecies Electron Transfer with Biochar

Biochar

Original feedstock

Pyrolysis temperature (°C)

Particle size (mm)a

BET surface area (m2/g)b

Electrical conductivity per g biochar (μS/cm)c

BEC

pine

700 for 30 sec & 500 for 15 min

≤0.4

15

4.41

ESI

pine

500 for 2 h

≤1

167

2.11

Klin

pine

600 for 2 h

≤3

209

4.33

  1. aMaximum particle size was estimated by inspection with transmission electron microscopy.
  2. bThe Brunauer-Emmett-Teller (BET) surface areas were obtained from N2 adsorption at 77 K with a Quantachrome Autosorb-141.
  3. cThe electrical conductivities were determined with a two-electrode system as previously described20.
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