Role of Variation of Fuels and Oxidants in Performance Evaluation of Planar Anode-Supported SOFC Fabricated with Functional Anode

EasyChair Preprint 2946

Abstract

The present work is based on the performance evaluation of functional anode in SOFC with multi fuel capability. Optimized anode configuration with conventional anode ( 40 vol % Ni) towards fuel side and electroless anode (28/32 vol %) active layer (AAL) at electrode/electrolyte interface shows maximum current density of ~ 4.0 A.cm^-2 @ 800^oC & 0.7 V using 250 SCCM of  moist H₂ (3 % moisture)  as fuel compared to much less performance (3A.cm^-2) using dry fuel. Such layered anode also shows higher performance of 1.0A.cm^-2 with 20 % reformed methane (RH:40 %) compared to 0.5 A.cm^-2 obtained with SOFC fabricated with conventional anode. Electroless anode with unique core (Ni)-shell (YSZ) morphology uses lower Ni content to fulfill the required conductivity criteria and shows enhanced electrochemical reaction at electrode/electrolyte interface. Owing to such factors, electroless AAL shows much reduced coking of anode with reformed methane as fuel and enhance the endurance of SOFC with much higher performance.

Keyphrases: Anode, SOFC, electrochemical performance

@booklet{EasyChair:2946,
  author    = {Madhumita Mukhopadhyay and Jayanta Mukhopadhyay and Abhijit Dassharma},
  title     = {Role of Variation of Fuels and Oxidants in Performance Evaluation of Planar Anode-Supported SOFC Fabricated with Functional Anode},
  howpublished = {EasyChair Preprint 2946},
  year      = {EasyChair, 2020}}