Inorganic Chemistry

A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction

Authors

Abstract

The detection of perchlorate (ClO4) on and beyond Earth requires ClO4 reduction technologies to support water purification and space exploration. However, the reduction of ClO4 usually entails either harsh conditions or multi-component enzymatic processes. We developed a heterogeneous Mo−Pd/C catalyst from sodium molybdate to reduce aqueous ClO4 into Cl with 1 atm H2 at room temperature. Upon hydrogenation by H2/Pd, the reduced Mo oxide species and a bidentate nitrogen ligand (1:1 molar ratio) are transformed in situ into oligomeric Mo sites on the carbon support. The turnover number and frequency for oxygen atom transfer from ClOx substrates reached 3850 and 165 h−1 on each Mo site. This simple bioinspired design yielded a robust water-compatible catalyst for the removal and utilization of ClO4.

Version notes

V1.0 October 2020

Content

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Supplementary material

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SI A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction