Physical Sciences and Mathematics Commons^™

Electrochemically Active Biofilm Mediated Bio-Hydrogen Production Catalyzed By Positively Charged Gold Nanoparticles, Mohammad Mansoob Khan Dr, J. Lee, M. H. Cho

Dr. Mohammad Mansoob Khan

An electrochemically active biofilm (EAB) was used for the synthesis of positively charged gold nanoparticles [(+)AuNPs] and in-situ hydrogen production without any external energy input. The EAB generate electrons and protons by decomposing sodium acetate (carbon source) in water at 30 C. These electrons were used initially to reduce Au3+ to Au0, and later in-situ, these generated electrons and protons were used for hydrogen produc-tion. The as-synthesized (+)AuNPs acted as catalyst by providing a charged surface to reduce the protons, leading to the formation of molecular hydrogen according to the Volmer-Heyrovsky mechanism. The hydrogen produced was confirmed and estimated by …