Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis

Abstract

The synthesized nitrogen self-doped graphitic carbon nanosheets material using the tune-up SP system is a promising catalyst for the ORR, as an alternative to Pt catalyst for energy conversion device application.

Synthesis of a Polyaniline Nanoparticle Using a Solution Plasma Process with an Ar Gas Bubble Channel

“…Conventionally, PANI nanoparticles have been synthesized via chemical, electrochemical, electrospinning, seeding polymerization, ultrasonic assisted polymerization, hard and soft templates, and interfacial polymerization methods [8,9,10,11,12,13,14,15,16,17,18,19,20]. Among these methods, the electrochemical solution plasma process (SPP) is a new, simple, and useful synthesis method of polymer nanoparticles, carbon nanomaterials, metal nanoparticles, surface treatment of polymers, purification of wastewater, and degradation of organic compounds, because this nonequilibrium plasma can provide rapid reaction and synthesis due to the reactive chemical species and radicals [21,22,23,24,25,26,27]. Electrical discharge in the solution phase is known as “SPP” and has recently been studied to be an effective synthesis method.…”

Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

“…Nitrogen is an important element for this purpose and has been extensively studied. Precursors such as pyridine (C5H5N) [20,38,43,82], aniline (C6H5NH2) [129], APTES (i.e., SiO3(C2H5)3C3H6NH2 or 3aminopropyltriethoxysilane) [72] or DMF (i.e., C3H7NO or N,N-dimethylformamide) [58,59] can be used to introduce nitrogen atoms (see Fig. 7a).…”

“…The high-resolution peak in the C-1s region can be interpreted by considering the presence of different types of carbon bonding: C=C bond (284.5 eV), C-C bond (285.0 eV), C-N bond (285.9eV), C-O bond (286.5 eV), and C=O bond (287.0 eV). Lee et al [20] assert that the presence of the C-N bond at 285.9eV proves the successful incorporation of nitrogen into the carbon structure. However, it only proves the presence of C-N bonds that can possibly be perpendicular to the ring basal plane.…”

“…The presence of nitrogen atoms in the carbon networks of nitrogen-doped graphitic carbon nanosheets produced by Lee et al [20] is demonstrated by the catalytic activity of the nanoparticles, which enhances the oxygen reduction reaction (ORR) activity. Thanks to amino-functional groups present in N-doped carbon dots (~6 nm in diameter) produced by Kim et al [38], the dots exhibit bright blue fluorescence.…”

“…1) are used for nanoobjects synthesis as a basis for comparison with their competitors. The main advantages of submerged discharges in liquids are taken from [20][21][22]: (1) a one-step process; (2) an ambient reaction environment; (3) a straightforward and easy setup; (4) a cost-effective production; (5) possible large-scale synthesis quantities; (6) an eco-friendly fabrication; and (7) high control on nanoparticle characteristics (size, shape, composition, etc.) Different criteria are evaluated, including mastering of size distributions, control over compositions, access to non-equilibrium phases, structure design capabilities, solution stability, and energy cost.…”