ABSTRACT The current study is mainly focused on the preparation of new ceramic electrolyte material based on doped cerium oxide nanocomposite for low-temperature solid oxide fuel cell (LTSOFC) application. The nanocomposite material with composition Ce0.95Nd0.05O2-δ-Ce0.95Gd0.05O2-δ (CNO-CGO) was prepared by a simple cost effective soft chemical precipitation method. The structural, morphological properties and thermal properties of the synthesised nanocomposite material were studied. The mass variation and heat flow rate of CNO-CGO precursor were studied using TGA-DSC analysis. A single fluorite cubic phase structure was revealed by XRD. The surface was studied using SEM resulting in a uniform spherical shape with the agglomerated tightly packed structure without any pores. The presence of a single crystalline phase and the distorted cubic structure was observed by HR-TEM. The nanocomposite was uniaxially pressed and sintered to study the microstructural characteristics. The obtained results were discussed in order to use the material as an efficient electrolyte for LTSOFC application.