Synthesis of Nb2O5 and Ta2O5 nanopowders by means of an endo-templating method

The environment and energy crisis due to carbon dioxide emissions from burning fossil fuels have increased the urgency to explore sustainable energy, while hydrogen with high energy density and environmental friendliness represents a promising solution. Currently, hydrogen production from renewable-energy-driven water splitting via electrocatalytic, photocatalytic, and photoelectrochemical processes are actively investigated, where the design of stable and active earth-abundant catalysts is one of the most important scientific questions. Among the numerous metal oxide catalysts, tantalum pentoxide (Ta 2 O 5 ) has recently received great attention due to its suitable band gap and high stability as an anode for water splitting. In this Review, we start with a summary of diverse Ta 2 O 5 phases with different crystalline structures. We also summarize the experimental methods for the synthesis of different Ta 2 O 5 phases, followed by discussions of the electronic structures of each phase from theoretical calculations. Then, we review the recent applications of Ta 2 O 5 as the anode catalyst for the oxygen evolution reaction (OER) and the cathode catalyst for hydrogen evolution reaction (HER). Finally, we discuss the challenges and opportunities of using Ta 2 O 5 -based materials as viable catalysts for water splitting, with an emphasis on the crucial role of the synergistic effort from both theory and experiment.

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Synthesis of Nb2O5 and Ta2O5 nanopowders by means of an endo-templating method

Cited by 3 publications

References 29 publications

A novel nano-fibriform C- modified niobium pentoxide by using cellulose templates with highly visible-light photocatalytic performance

A novel nano-fibriform C- modified niobium pentoxide by using cellulose templates with highly visible-light photocatalytic performance

Nanosized niobium (V) and tantalum (V) oxide ceramics as competitive oxidizers within aluminium-based nanothermites

Tantalum Pentoxide: From Crystal Structures to Applications in Water Splitting

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