afae9600db4f23902a4bb6632e6dda34 pmc_8950516.pdf 2e9c477faee5ab89c2779248783a601da987ad8b pmc_8950516.pdf 8157d2439a95c2450a1a7c74be8f4b6de213b4b64257b0b6bd2a748c5c8207a8 pmc_8950516.pdf Title: Conversion of Carbon Dioxide into Methanol Using Cu–Zn Nanostructured Materials as Catalysts Subject: Nowadays, there is a growing awareness of the great environmental impact caused by the enormous amounts of carbon dioxide emitted. Several alternatives exist to solve this problem, and one of them is the hydrogenation of carbon dioxide into methanol by using nanomaterials as catalysts. The aim of this alternative is to produce a value-added chemical, such as methanol, which is a cheaply available feedstock. The development of improved materials for this conversion reaction and a deeper study of the existing ones are important for obtaining higher efficiencies in terms of yield, conversion, and methanol selectivity, in addition to allowing milder reaction conditions in terms of pressure and temperature. In this work, the performance of copper, zinc, and zinc oxide nanoparticles in supported and unsupported bimetallic systems is evaluated in order to establish a comparison among the different materials according to their efficiency. For that, a packed bed reactor operating with a continuous gas flow is used. The obtained results indicate that the use of bimetallic systems combined with porous supports, such as zeolite and activated carbon, is beneficial, thus improving the performance of unsupported materials by four times. Keywords: carbon dioxide hydrogenation; methanol; nanomaterials; heterogeneous catalysis Author: Anna Carrasco García, Javier Moral-Vico, Ahmad Abo Markeb and Antoni Sánchez Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Fri Mar 18 08:54:09 2022 CET ModDate: Fri Mar 18 08:55:52 2022 CET Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 16 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 3893716 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- BHINKS+VnURWPalladioL Type 1 Custom yes yes no 10 0 MRWJWK+URWPalladioL-Bold Type 1 Custom yes yes no 15 0 GIPZVT+URWPalladioL-Roma Type 1 Custom yes yes no 20 0 UTMUYN+URWPalladioL-Ital Type 1 Custom yes yes no 24 0 SSNIUI+VnURWPalladioL-Bold Type 1 Custom yes yes no 28 0 MCBCCI+SourceSansRoman-Regular Type 1C Custom yes yes no 36 0 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Objects: 528 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@44c8afef Item: Title: Materials and Methods Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7b69c6ba Children: Item: Title: Materials Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@46daef40 Item: Title: Synthesis of Nanocomposites Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@12f41634 Children: Item: Title: ZnO Nanoparticle Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Item: Title: Cu Nanoparticle Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Item: Title: CuO/ZnO Bimetallic Nanoparticle Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: Cu/ZnO Bimetallic Nanoparticle Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Item: Title: Cu/ZnO/Zeolite Nanocomposite Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: Cu/ZnO/Polypyrrole Nanotube Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Item: Title: Cu/ZnO/Activated Carbon Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Item: Title: Characterisation of Catalysts Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Item: Title: Catalytic Activity Test Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1a3869f4 Item: Title: Results and Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@a38d7a3 Children: Item: Title: Structural and Morphological Characterisation of Nanomaterials Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77f99a05 Item: Title: Catalytic Activity of Nanomaterials Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@63440df3 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@3aeaafa6 Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@76a3e297 Info: Title: Conversion of Carbon Dioxide into Methanol Using Cu Zn Nanostructured Materials as Catalysts Author: Anna Carrasco García, Javier Moral-Vico, Ahmad Abo Markeb and Antoni Sánchez Subject: Nowadays, there is a growing awareness of the great environmental impact caused by the enormous amounts of carbon dioxide emitted. Several alternatives exist to solve this problem, and one of them is the hydrogenation of carbon dioxide into methanol by using nanomaterials as catalysts. The aim of this alternative is to produce a value-added chemical, such as methanol, which is a cheaply available feedstock. The development of improved materials for this conversion reaction and a deeper study of the existing ones are important for obtaining higher efficiencies in terms of yield, conversion, and methanol selectivity, in addition to allowing milder reaction conditions in terms of pressure and temperature. In this work, the performance of copper, zinc, and zinc oxide nanoparticles in supported and unsupported bimetallic systems is evaluated in order to establish a comparison among the different materials according to their efficiency. For that, a packed bed reactor operating with a continuous gas flow is used. The obtained results indicate that the use of bimetallic systems combined with porous supports, such as zeolite and activated carbon, is beneficial, thus improving the performance of unsupported materials by four times. 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