Facile Oxygen Reduction on a Three‐Dimensionally Ordered Macroporous Graphitic C₃N₄/Carbon Composite Electrocatalyst

Abstract

Honeycomb catalysis: a facile oxygen reduction reaction has been observed on a graphitic C(3)N(4)/carbon catalyst with three-dimensional interconnected macropores (see picture with SiO(2) template). This material not only shows catalytic activity that is comparable to that of commercial Pt/C, but also has much higher organic-fuel tolerance and long-term stability.

Nitrogen-doped carbon-embedded TiO2 nanofibers as promising oxygen reduction reaction electrocatalysts

“…The longterm stability of the N-TiO 2 @C-0.75 and commercial Pt/C catalysts was measured based on current-time characteristics using the chronoamperometry technique at a set potential of −0.7 V (versus Ag/AgCl) for 30,000 s in an O 2 -saturated solution of 0.5 M KOH and at a rotation speed of 1600 rpm. The analyses were conducted at −0.7 V (versus Ag/AgCl) because of the extremely high cathodic current, thereby leading to a fast reaction rate, as reported in a previous study [57].…”

Carbon skeleton doped with Co, N, S and P as efficient electrocatalyst for oxygen evolution reaction

“…The development of metal-free OER catalyst [2,3] is also purposed. However, up to now this method is concentrated on graphitic carbonitride (g-C 3 N 4 ) [30][31][32][33] and modified carbon nanostructures such as carbon nanotubes (CNTs) [33][34][35]. The performance of other metal-free materials which are entirely composed of lightweight elements is not good in most cases.…”

Graphitic Carbon Nitride-Graphene Hybrid Nanostructure as a Catalyst Support for Polymer Electrolyte Membrane Fuel Cells

“…However, incorporating a conductive material to form a nanocomposite substrate increases the number of electrons accumulated on the gCNH surface, thereby facilitating the catalytic activity (39). Consequently, many studies have since focused on hybridizing gCNH with various carbon materials to use as metal-free catalysts and catalyst support for fuel cells (40,41).…”