A simple approach to achieve a metastable metal oxide derived from carbonized metal-organic gels

A strategy for fabricating zirconiumoxide doped nanoporous carbons derived from metal-organic gels (MOGs) is reported. For the first time, the achievement ofmetastable ZrO2-NPCs is demonstrated. The direct pyrolysis of MOGs provided new perspective in developing metal oxide-doped NPCs and circumvented the shortcomings of existing methods in synthesizing metastable ZrO2 doped NPCs.