%0 Journal Article
%T Biochar¡¯s Electrochemical Properties Impact on Methanogenesis: Ruminal vs. Soil Processes
%A Anna Kolganova
%A Rattan Lal
%A Jeffrey Firkins
%J Journal of Agricultural Chemistry and Environment
%P 28-43
%@ 2325-744X
%D 2023
%I Scientific Research Publishing
%R 10.4236/jacen.2023.121003
%X The chemical composition of biochar and the pyrolysis temperature, under which biochar was produced, determine its electrochemical properties. Electrical conductivity, pseudo-capacitance, and double layer capacitance are the three main electrochemical properties of biochar. Due to the electrical conductivity biochar is able to interfere with the electrons flow and play a dual role of an electron donor or an electron acceptor. The average conductivity of biochar is 229.20 S/m. Pseudocapacitance of biochar lets it serve as a hydrogen sink, taking up the hydrogen produced by protozoa and preventing it from participating in methane-producing reactions in the rumen environment. The average value of biochar¡¯s pseudocapacitance is 228 F<span style=\"white-space:nowrap;\">&amp;middot;</span>g<sup>-1</sup>. Positive and negative charges get stored due to the absorption of ions onto the carbon surface, which happens because of the existence of double layer capacitance as one of biochar¡¯s electrochemical properties. Biochar¡¯s double layer capacitance values can reach the point of 110.8 F<span style=\"white-space:nowrap;\">&amp;middot;</span>g<sup>-1</sup>. The electrochemical properties of biochar are directly co-dependent with its redox potential and pH. Electrical conductivity, pseudocapacitance, and double layer capacitance can significantly influence biochemical processes in the rumen and, thus, need to be studied practically.
%K Biochar
%K Ruminants
%K Methanogenesis
%K Soil
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=122816