Reduced polyoxomolybdate immobilized on reduced graphene oxide for rapid catalytic decontamination of a sulfur mustard simulant

Abstract

The Keggin-type polyoxometalates (POMs) were immobilized on poly(diallyldimethylammonium chloride) (PDDA) functionalized reduced graphene oxide (rGO) by a facile and broad-specturm hydrothermal method. The prepared POMs@PDDA-rGO composites (POM = H3PMo12O40, H3PW12O40,...

A Supercapacitor with High Specific Volumetric Capacitance Produced by 12-Phosphomolybdate Anchored on Graphene Balls

“…Fourier transform infrared (FT-IR) spectra in Figures c and S2 show the characteristic absorption bands of CGB, CGB/PMo 12 (n) hybrids (n = 1, 2, 3, 4), and PMo 12 . In the vibrational spectra of PMo 12 , peaks at 1059, 960, 871, and 797 cm –1 can be attributed to the stretching vibration of P–O, MoO, Mo–Ob–Mo, and Mo–Oc–Mo, , respectively, and appearance of these characteristic peaks in CGB/PMo 12 (n) hybrids (n = 1, 2, 3, 4) further confirms the successful anchoring of PMo 12 on CGB with maintained structural integrity.…”

A Zr-added Dawson-type poly(polyoxometalate)

“…To date, there have been some reports of POMs possessing the ability to catalyze the oxidation of organics in the presence of peroxide. [53][54][55][56][57][58][59][60] Herein, the catalytic activity of 1 was evaluated (Fig. 3a) under the conditions of methanol (4.0 mL), CEES (0.5 mmol), dodecane (internal standard), catalyst 1 (1.0 μmol), oxidizer H 2 O 2 (30%, 0.55 mmol), and room temperature.…”

Immobilization of Brønsted basic hexaniobate on the Lewis acidic zirconia using an emulsion assisted self-assembly strategy for synergistic boosting of nerve agent simulant decontamination

“…Polyoxoniobates (PONbs) are a subfamily of polyoxometalates (POMs) [22][23][24] and both their synthesis chemistry and catalysis chemistry are far behind those of other POM members. [25][26][27][28][29][30][31] Recently, the catalytic activities of PONbs in the decontamination of chemical warfare agents and/or their simulants have been explored. Our investigations show that PONbs can promote the oxidative detoxification of sulfur mustard and VX simulants due to their ability to activate hydrogen peroxide.…”