The Direct Synthesis of Hydrogen Peroxide Using Platinum‐Promoted Gold–Palladium Catalysts

Edwards, Jennifer K.; Pritchard, James; Li, Lu; Piccinini, Marco; Shaw, Greg; Carley, Albert Frederick; Morgan, David; Kiely, Christopher J.; Hutchings, Graham J.

doi:10.1002/anie.201308067

Cited by 117 publications

(77 citation statements)

References 20 publications

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“…Thus, it should be noted that the reason of the high oxidation activity of the Au/Pt/TiO 2 catalyst, especially of the 1Au/1Pt/TiO 2 sample, also could be due to hydrogen peroxide formation. Recently, Hutchings et al [80] reported the enhanced activity of Pt-doped bimetallic Au-Pd/CeO 2 catalyst in H 2 O 2 formation. Moreover, H 2 O 2 could be activated on the TiO 2 support as surface-stabilized peroxo-or/and hydroperoxo species (Ti-O 2 − or/and Ti-OOH), as it was proved by Bonino et al [81], or just decomposed to O-centered radicals leading to non-selective secondary hydroxyl group oxidation in 1,2-PD, and C C bond scission under the more severe conditions.…”

Section: Proposed Scheme Of 12-propanediol Oxidationmentioning

confidence: 98%

Au/Pt/TiO2 catalysts prepared by redox method for the chemoselective 1,2-propanediol oxidation to lactic acid and an NMR spectroscopy approach for analyzing the product mixture

Редина

Greish

Новиков

et al. 2015

Applied Catalysis A: General

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Section: Proposed Scheme Of 12-propanediol Oxidationmentioning

confidence: 98%

Au/Pt/TiO2 catalysts prepared by redox method for the chemoselective 1,2-propanediol oxidation to lactic acid and an NMR spectroscopy approach for analyzing the product mixture

Редина

Greish

Новиков

et al. 2015

Applied Catalysis A: General

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“…[2][3][4][5] Meanwhile, recent years have witnessed a growing interest in palladium (Pd)-based nanomaterials due to their fascinating properties and potential applications in catalysts. [ 1,[6][7][8][9][10][11][12][13][14][15][16][17][18][19] Given that the reactivity and selectivity of a catalyst are highly dependent on specifi c pathways of reactions, it is imperative to decode the mechanism behind each reaction in an effort to achieve rational catalyst design. In particular, oxida-…”

Section: Introductionmentioning

confidence: 99%

Palladium‐Based Nanomaterials: A Platform to Produce Reactive Oxygen Species for Catalyzing Oxidation Reactions

et al. 2015

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Oxidation reactions by molecular oxygen (O2 ) over palladium (Pd)-based nanomaterials are a series of processes crucial to the synthesis of fine chemicals. In the past decades, investigations of related catalytic materials have mainly been focused on the synthesis of Pd-based nanomaterials from the angle of tailoring their surface structures, compositions and supporting materials, in efforts to improve their activities in organic reactions. From the perspective of rational materials design, it is imperative to address the fundamental issues associated with catalyst performance, one of which should be oxygen activation by Pd-based nanomaterials. Here, the fundamentals that account for the transformation from O2 to reactive oxygen species over Pd, with a focus on singlet O2 and its analogue, are introduced. Methods for detecting and differentiating species are also presented to facilitate future fundamental research. Key factors for tuning the oxygen activation efficiencies of catalytic materials are then outlined, and recent developments in Pd-catalyzed oxygen-related organic reactions are summarized in alignment with each key factor. To close, we discuss the challenges and opportunities for photocatalysis research at this unique intersection as well as the potential impact on other research fields.

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“…Strong synergy between Au and Pd is also observed in catalysts for the direct synthesis of hydrogen peroxide [14] and the oxidation of toluene [15]. Recently, we have explored the addition of a third metal and we have shown that for AuPdPt catalysts the activity can be enhanced for both hydrogen peroxide synthesis [30] and alcohol oxidation [18]. With benzyl alcohol oxidation, the addition of platinum switches-off the formation of toluene.…”

Section: Au Catalysts and Improving Catalysyt Activitymentioning

confidence: 97%

Gold Catalysis: A Reflection on Where We are Now

Kiely

Hutchings

2014

Catal Lett

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Heterogeneous catalysis by gold is now a very well established research topic and several thousands of papers have appeared since the pioneering studies based on CO oxidation and acetylene hydrochlorination reactions in which, for the first time, supported gold catalysts were shown to be the best catalysts for these reactions. It is now widely recognised that gold either by itself or in combination with other metals is an excellent redox catalyst. In particular gold-containing catalysts are very effective for the selective oxidation of alcohols. Initially it was considered that base was needed to be present for alcohols to be effectively oxidised but efficient catalyst design has enabled alcohols to be oxidised to aldehydes without the need for added base. Gold-containing catalysts are also exceptionally effective for the hydrogenation of oxygen to form hydrogen peroxide. This direct synthesis route shows great potential for a number of applications at this time. More recently gold-containing catalysts have been shown to be effective in C-H activation reactions. Due to the ever increasing opportunities for applying heterogeneous gold catalysts, interest in how effective catalysts are designed and synthesised remains strong. In this paper both the early work and the more recent discoveries concerning heterogeneous catalysis by gold will be considered and some suggestions on the way forward will be presented.

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The Direct Synthesis of Hydrogen Peroxide Using Platinum‐Promoted Gold–Palladium Catalysts

Cited by 117 publications

References 20 publications

Au/Pt/TiO2 catalysts prepared by redox method for the chemoselective 1,2-propanediol oxidation to lactic acid and an NMR spectroscopy approach for analyzing the product mixture

Au/Pt/TiO2 catalysts prepared by redox method for the chemoselective 1,2-propanediol oxidation to lactic acid and an NMR spectroscopy approach for analyzing the product mixture

Palladium‐Based Nanomaterials: A Platform to Produce Reactive Oxygen Species for Catalyzing Oxidation Reactions

Gold Catalysis: A Reflection on Where We are Now

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