Tuning active sites of N-doped porous carbon catalysts derived from vinasse for high-performance electrochemical sensing
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
N-doped biomass-derived porous carbon was synthesized by the pyrolysis of sugarcane-vinasse to develop a novel metal-free catalyst in electrochemical sensing. Vinasse samples were subjected to different pyrolysis temperatures under nitrogen flow to investigate the effect of the pyrolysis temperature on the physical properties of the biomass-derived products. The XPS results displayed that as-pyrolyzed samples contain N atoms with an atomic ratio of 3.02%. While a low surface area of 1.5 m(2)/g was measured from the sample pyrolyzed at 600 degrees C, the increase in the temperature yielded a large surface area of 620 m(2)/g. Additional heat treatment was implemented to tailor N-binding sites. Samples were then used as electroactive catalysts for hydrogen peroxide (H2O2) electrochemical sensing. Vinasse-P-10@N-based sensors showed much-improved sensor performance in a linear range of 0.03-12 mM with a high sensitivity of 208.97 mu A mM(-1) cm(-2).
Açıklama
Anahtar Kelimeler
Biomass-Derived Carbon, Electrochemical Sensor, Graphitic-N, Metal-Free Catalyst, Porous Structure
Kaynak
Particulate Science And Technology
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
41
Sayı
1
