Enhanced AuPd Activity in the Direct Synthesis of Hydrogen Peroxide using Nanostructured Titanate Nanotube Supports. Issue 9 (23rd July 2014)

• Record Type: Journal Article
• Authors: Torrente‐Murciano, Laura; He, Qian; Hutchings, Graham J.; Kiely, Christopher J.; Chadwick, David
• Is Part Of: ChemCatChem. Volume 6:Issue 9(2014:Sep.)
• Page Start: 2531
• Page End: 2534
• Publication Date: 2014-07-23
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201402361
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Nanostructured supports with tubular morphologies can impose one dimensional external constraints to supported metal nanoparticles affording small sizes (<2 nm) with high dispersion. Specifically, the curvature and chemical environment of the external nanotube surface appears to play a key role in determining the morphology and stability of the supported AuPd nanoparticles. This strategy is presented as an alternative nanoparticle stabilisation approach rather than encapsulation within porous structures or the use of organic capping agents with associated diffusional limitations. Here, we report the enhancement achieved in the AuPd alloy reactivity for the direct synthesis of hydrogen peroxide when supported on titanate nanotubes (Ti‐NT) with a productivity above 11 600 mol<inline-formula><alternatives><inline-graphic mimetype="image" xlink:href="ark:/27927/pgh177c724r" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><mml:math altimg="urn:x-wiley:18673880:media:CCTC201402361:tex2gif-inf-1" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext> </mml:mtext><mml:mrow><mml:mtext>H</mml:mtext><mml:msub><mml:mtext> </mml:mtext><mml:mrow><mml:mtext>2</mml:mtext></mml:mrow></mml:msub><mml:mtext>O</mml:mtext><mml:msub><mml:mtext> </mml:mtext><mml:mrow><mml:mtext>2</mml:mtext></mml:mrow></mml:msub></mml:mrow></mml:msub></mml:math></alternatives></inline-formula> kg<sub>metal</sub><sup>−1</sup> h<sup>−1</sup> afforded by the high metal–support interaction.</p> </abstract>