Nano-composite materials for high-performance and durability of solid oxide fuel cells

Sun Dong Kim, Hwan Moon, Sang Hoon Hyun, Jooho Moon, Joosun Kim, Hae Weon Lee

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

A functional composite powder containing nano-sized NiO and YSZ (8 mol% Y2O3-ZrO2) co-conjugated on YSZ powder is synthesized by a Pechini-type polymerizable complex method in an effort to yield improved performance and durability in solid oxide fuel cells (SOFCs). A SOFC single cell made from the dual composite powder exhibited high power density of 1.2 W cm-2 and showed excellent durability (zero degradation) under a load of 1.0 A cm-2 during 550 h of operation at 800 °C. The durability is attributed to the uniform and constrained cermet structure, and particularly from the interface between Ni and YSZ, which has been modified via nano-conjugation. The proposed composite powder is an attractive candidate material for making homogeneous, durable, and highly efficient electrode microstructures.

Original languageEnglish
Pages (from-to)392-397
Number of pages6
JournalJournal of Power Sources
Volume163
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Dec 7

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this