A symmetric direct ammonia fuel cell using ternary NiCuFe alloy embedded in a carbon network as electrodes

Abstract

Recently, due to the high energy density of ammonia, low source-to-tank energy cost and carbon free fuel, low-temperature direct ammonia fuel cells (DAFCs) have attracted extensive attention and play an...

Optimization of the Cathode Catalyst Layer for Boosting Direct Ammonia Fuel Cell Performance by Orthogonal Tests

“…An ionomer is also critical for cell performance and acts as an adhesive and ion conduction network . Therefore, all the ionomers can be used as a binder in AEM-DAFCs, and Nafion is a common one. ,− In addition to the Nafion, poly­(tetrafluoroethylene) (PTFE) is the most common binder in AEM-DAFCs. ,,, However, Nafion mainly conducts protons, while PTFE neither conducts protons nor ions . Hence, when both Nafion and PTFE are used as binders, their excellent bonding and hydrophobic qualities are primarily utilized.…”

Multifunctional metal-phosphide-based electrocatalysts for highly efficient solar hydrogen production integrated devices

“…30 The formation of pyridinic N and Fe/Ni-N x is favorable for the electrocatalytic activity by modulating the local electronic structure. 31,32 The high-resolution spectrum of P 2p (Fig. 2d) exhibits two peaks centered at 129.5 and 130.6 eV, which can be attributed to the spin-splitting peaks of P in the Fe/Ni-P species.…”

Manganese carbonate as an efficient electrocatalyst for the conversion of ammonia (NH4+/NH3) to dinitrogen

“…13 Though the electrooxidation of ammonia possess many advantages, the current utilization of electrocatalysts renders it unt for large scale industrial and commercial applications. [14][15][16] This is due to sluggish kinetics of ammonia oxidation. Additionally, this slow kinetics of ammonia electrooxidation requires large overpotential, and therefore leads to loss of efficiency of the electrodes.…”