A nanoscale observation to explain the discrepancy of electron exchange capacities between biochar containing comparable surface redox-active moieties

Autor: Shasha Li, Liming Shao, Hua Zhang, Xuemin Lu, Fan Lü, Pinjing He
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Biochar, Vol 4, Iss 1, Pp 1-15 (2022)
Druh dokumentu: article
ISSN: 2524-7972
2524-7867
DOI: 10.1007/s42773-022-00165-y
Popis: Highlights The microscopic distribution of RAMs on biochar was achieved by combining C-AFM and a mediated electrochemical method. The uneven distribution of RAMs enabled biochar to possess outstanding EEC by enhancing accessibility. The removal of submicron particles that only occupied 1-4‰wt reduced EDC to 72% for st700 and 53% for ind400. The removal of submicron particles changed the EAC of st700 to 87% and ind400 to 1.40 times as raw chars. Condensed aromatic structures were indispensable to EAC, while both heteroatoms and amorphous aromatics contributed to EDC.
Databáze: Directory of Open Access Journals
Externí odkaz: