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Highly porous Sm 0.2 Ce 0.8 O 1.9 (SDC) powder was synthesized by a novel PVA assisted self-rising approach (SDC_SR). The as-synthesized SDC powders were composed of 3−5 nm nanocrystals, which displayed extremely low filled density and high BET surface area. Compared with the SDC powders obtained by the traditional combustion synthesis method (SDC_CB), SDC_SR powders showed better sinterability and higher ionic conductivity.
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Liu et al. (2009) studied this question.
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