Synthesis of hydrogen peroxide over Pd/SiO2/COR monolith catalysts by anthraquinone method

Guo, Yali; Dai, Chengna; Lei, Zhigang; Chen, Biaohua; Fang, Xiangchen

doi:10.1016/j.cattod.2016.03.023

Cited by 48 publications

(28 citation statements)

References 39 publications

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“…72,386,387 Commercially, H 2 O 2 is produced by the oxidation of anthrahydroquinone by O 2 , which has a huge energy requirement during the regeneration process of anthraquinone with H 2 and palladium (Pd)-based catalyst. [388][389][390] The direct method is another option to reduce the energy cost, where direct contact of hydrogen and oxygen with catalysts leads to the formation of H 2 O 2 . [390][391][392][393][394][395][396][397][398][399][400][401][402][403][404][405][406] However, there are several problems such as side reactions, decomposition of H 2 O 2 with catalysts, and formation of an explosive mixture from H 2 and O 2 .…”

Section: Photocatalytic Production Of Ammonia By Nitrogen Fixation Anmentioning

confidence: 99%

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Fukuzumi

2017

Joule

182

116

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This review focuses on the production of liquid fuels using solar energy combined with their use in direct liquid fuel cells. The production of formic acid, which is the two-electron reduced product of CO 2 , as a solar liquid fuel as well as a hydrogen storage material is discussed together with its use in direct formate fuel cells. Other CO 2 reduction products such as methanol and formaldehyde as solar liquid fuels as well as hydrogen storage materials are reviewed with the performance of the corresponding fuel cells. The production of nitrogen fixation products such as ammonia and hydrazine is also reviewed together with their fuel cells. Finally, the production of hydrogen peroxide from not only pure water but also seawater and dioxygen in the air using solar energy is discussed and combined with the recent development of one-compartment hydrogen peroxide fuel cells.

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Section: Photocatalytic Production Of Ammonia By Nitrogen Fixation Anmentioning

confidence: 99%

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Fukuzumi

2017

Joule

182

116

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“…Hydrogen peroxide (H 2 O 2 ), as a green, powerful and versatile oxidant, has been widely applied either alone or as a reagent of advanced oxidation processes (e.g., Fenton/Fenton-like reactions 1,2 , TiO 2 /H 2 O 2 /UV photocatalysis 3,4 , ozone treatment 2 ) for water/wastewater treatment, disinfectant and paper-blenching applications 2,5,6 . At present, H 2 O 2 is commercially produced using the anthraquinone process in large-scale facilities, involving the sequential hydrogenation and oxidation of anthraquinone molecules 7,8 . This process is inherently complex and energy-intensive (1–2 dollars per kilogram), in which anthraquinone and its derivative are carcinogenic compounds 9 .…”

Section: Introductionmentioning

confidence: 99%

A Three-dimensional Floating Air Cathode with Dual Oxygen Supplies for Energy-efficient Production of Hydrogen Peroxide

Zhang

et al. 2019

Sci Rep

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The in situ and cleaner electrochemical production of hydrogen peroxide (H2O2) through two-electron oxygen reduction reaction has drawn increasing attentions in environmental applications as an alterantive to traditional anthraquinone process. Air cathodes avoid the need of aeration, but face the challenges of declined performance during scale-up due to non-uniform water infiltration or even water leakage, which is resulted from changing water pressures and immature cathode fabrication at a large scale. To address these challenges, a three-dimensional (3-D) floating air cathode (FAC) was built around the commercial sponge, by coating with carbon black/poly(tetrafluoroethylene) using a simple dipping-drying method. The FAC floated on the water-air interface without extensive water-proof measures, and could utilize oxygen both from passive diffusion and anodic oxygen evolution to produce H2O2. The FAC with six times of dipping treatment produced a maximum H2O2 concentration of 177.9 ± 26.1 mg L−1 at 90 min, with low energy consumption of 7.1 ± 0.003 Wh g−1 and stable performance during 10 cycles of operation. Our results showed that this 3-D FAC is a promising approach for in situ H2O2 production for both environmental remediation and industrial applications.

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“…To understand the MSI effect on the catalytic performance of PdAu NPs, temperature‐programmed reduction analysis with hydrogen (H 2 ‐TPR) was carried out to examine the reducibility. The H 2 ‐TPR profile of PdAu@mTiO 2 shows a strong reduction peak at 332 °C (Figure a), assigning to the reduction of PdO in the inner layer . By comparison, the reduction peak of PdAu@mSiO 2 shifts to a much higher temperature of 440 °C.…”

Section: Resultsmentioning

confidence: 96%

“…The H 2 -TPR profile of PdAu@mTiO 2 shows a strong reduction peak at 332°C (Figure 4a), assigning to the reduction of PdO in the inner layer. [33] By comparison, the reduction peak of PdAu@mSiO 2 shifts to a much higher temperature of 440°C. The drop in the reduction peak by 108°C implies improvement of the hydrogen spillover efficiency of PdAu nanoalloys when supported on mTiO 2 frameworks.…”

Section: Resultsmentioning

confidence: 97%

Polymer‐Assisted Co‐Assembly towards Synthesis of Mesoporous Titania Encapsulated Monodisperse PdAu for Highly Selective Hydrogenation of Phenylacetylene

Liu

et al. 2020

ChemCatChem

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Bimetallic nanoalloys have attracted great research interest in the past decades by virtue of their tunable metal‐metal synergies. The preparation of well‐defined bimetallic nanoalloys largely relies on the use of capping ligands, which brings a great challenge to utilize the surface‐accessible active sites and/or tailor bimetallic‐support interactions. In the current paper, surface‐clean, thermally stable and monodisperse PdAu nanoalloys confined in mesoporous TiO2 (PdAu@mTiO2) were prepared using evaporation‐induced self‐assembly with two colloidal templates. The hydrogenation activity of PdAu@mTiO2 was demonstrated to be approximately 6 times higher than that of PdAu nanoalloys supported on mesoporous silica due to the bimetallic‐support interactions. Our method is expected to open up new opportunities to synthesize ligand‐free and stable bimetallic nanoalloys with tailored bimetallic‐support interactions for highly efficient catalysis.

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Synthesis of hydrogen peroxide over Pd/SiO2/COR monolith catalysts by anthraquinone method

Cited by 48 publications

References 39 publications

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Production of Liquid Solar Fuels and Their Use in Fuel Cells

A Three-dimensional Floating Air Cathode with Dual Oxygen Supplies for Energy-efficient Production of Hydrogen Peroxide

Polymer‐Assisted Co‐Assembly towards Synthesis of Mesoporous Titania Encapsulated Monodisperse PdAu for Highly Selective Hydrogenation of Phenylacetylene

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