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- W4283163522 endingPage "121559" @default.
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- W4283163522 abstract "The present study developed bifunctional catalyst for CO2 hydrogenation into dimethyl ether (DME), whereby it consists of Pd/In2O3 for CO2 hydrogenation into methanol, and H-ZSM-5 for methanol dehydration into DME. The catalyst development was focused on the synthesis of Pd/In2O3 via a green and low-cost synthesis method of carbonized alginate templating. Thus, microspherical-confined nano-Pd/In2O3 was formed, whereby the localized nucleation growth was coordinated by the chemically entrapped In3+ via ionic bond in the well-distributed alginate structure. It was found that hydrothermal temperature plays a key role in the development of this catalyst structure. The optimum hydrothermal temperature is 160 °C, as it is able to produce the highest amount of methanol. This catalyst was further integrated with H-ZSM-5 via different integration manners. It was found that mortar mixed method produces the highest amount of DME, as the close proximity causes stronger ion-exchange mechanism between the catalyst components, which facilitates higher oxygen vacancy density in the bifunctional catalyst. Under the optimum Pd/In2O3: H-ZSM-5 (PdIn-160–12: H-ZSM-5) mass ratio of 4:1, the highest STYDME of 79.7 gDME kgcat-1 h−1 with CO2 conversion of 9% and DME selectivity of 44.1% can be achieved. In addition, the STYDME can be maintained even in 60 h on stream, demonstrating the excellent stability and performance of microspherical-confined nano-Pd/In2O3/H-ZSM-5 bifunctional catalyst synthesized via carbonized alginate templating strategy." @default.
- W4283163522 created "2022-06-21" @default.
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- W4283163522 date "2022-09-01" @default.
- W4283163522 modified "2023-09-30" @default.
- W4283163522 title "Green synthesis of microspherical-confined nano-Pd/In2O3 integrated with H-ZSM-5 as bifunctional catalyst for CO2 hydrogenation into dimethyl ether: A carbonized alginate templating strategy" @default.
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- W4283163522 doi "https://doi.org/10.1016/j.seppur.2022.121559" @default.
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