Investigating the effect of rGO on microstructural and electrical properties of La_0.9Sr_0.1Ga_0.8Mg_0.2O₃ in intermediate temperature SOFCs

Abstract

Despite the high demand for green energy sources, the low performance of solid oxide fuel cells (SOFC) at low temperatures hinders the potential for its practical application. Ceramic reduced graphene...

Boosted Oxygen Reduction Reaction Activity by Ordering Cations in the A-Site of a Perovskite Catalyst

“…Unfortunately, the catalytic activity of the perovskite-based oxide is not comparable to that of the commercial electrode (Pt/c) due to the intrinsic poor electrical conductivity of oxide materials. To compensate for this drawback, hybridization with N-doped rGO was introduced to improve ORR catalytic activity . N-doped rGO could enhance electrical conductivity and create a synergistic effect with intrinsic catalytic activity, boosting ORR performance of perovskite-based electrocatalyst. , The introduction of N- doped rGO was prepared by the hydrothermal method using urea as a reduction agent and N source.…”

“…To compensate for this drawback, hybridization with N-doped rGO was introduced to improve ORR catalytic activity. 53 N-doped rGO could enhance electrical conductivity and create a synergistic effect with intrinsic catalytic activity, boosting ORR performance of perovskite-based electrocatalyst. 8,54 The introduction of Ndoped rGO was prepared by the hydrothermal method using urea as a reduction agent and N source.…”

Highly Active Interfacial Sites in SFT‐SnO2 Heterojunction Electrolyte for Enhanced Fuel Cell Performance via Engineered Energy Bands: Envisioned Theoretically and Experimentally

“…In general, the construct of SOFC consists of electrodes and electrolytes, where the electrolyte is a key component of FC to allow the transport of ions. [1,8] Indeed, the high ionic conductivity will lead to high energy conversion and fuel efficiency. Yttrium-stabilized zirconia (YSZ) was typically considered a stable and popular electrolyte with ionic conductivity of 0.1 S cm À1 and effective suitable energy conversion efficiency at 800-1000 °C.…”

Investigating the microstructural and electrochemical performance of novel La0.3Ba0.7Zr0.5X0.3Y0.2 (X = Gd, Mn, Ce) electrolytes at intermediate temperature SOFCs

“…The difference in synthesis routes can result in different morphologies (particle size, shape, and specic surface area) and conductivities of the electrolyte. 31 Based on our previous research expertise, [32][33][34][35][36][37][38][39][40][41][42][43] in the current work, we employed the combustion method to study the novel La 0.3 Ba 0.7 Zr 0.5 X 0.3 Y 0.2 (X = Gd, Mn, Ce) as a stoichiometric electrolyte material with oxalic acid and spinach as green chelating agents. This research aims to improve electrolyte conductivity at intermediate temperatures with different dopants and nd an eco-friendly (green) route to synthesize perovskite materials successfully.…”