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      Direct conversion of CO2 into liquid fuels with high selectivity over a bifunctional catalyst

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          Abstract

          It is still a great challenge to synthesize value-added products with two or more carbons directly from CO2. Now, a bifunctional catalyst composed of reducible metal oxides (In2O3) and zeolites (HZSM-5) is prepared and yields high selectivity to gasoline-range hydrocarbons (78.6%) with a high octane number directly from CO2 hydrogenation.

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          Transformation of carbon dioxide.

          Toshiyasu Sakakura, Jun-Chul Choi, Hiroyuki Yasuda (2007)
          Article 0 comments Cited 848 times – based on 0 reviews     Review now
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            Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2

            J. Graciani, K. Mudiyanselage, F. Xu … (2014)
            The transformation of CO2 into alcohols or other hydrocarbon compounds is challenging because of the difficulties associated with the chemical activation of CO2 by heterogeneous catalysts. Pure metals and bimetallic systems used for this task usually have low catalytic activity. Here we present experimental and theoretical evidence for a completely different type of site for CO2 activation: a copper-ceria interface that is highly efficient for the synthesis of methanol. The combination of metal and oxide sites in the copper-ceria interface affords complementary chemical properties that lead to special reaction pathways for the CO2→CH3OH conversion.
            Article 0 comments Cited 307 times – based on 0 reviews     Review now
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              Selective conversion of syngas to light olefins.

              Feng Jiao, Jinjing Li, Xiulian Pan … (2016)
              Although considerable progress has been made in direct synthesis gas (syngas) conversion to light olefins (C2(=)-C4(=)) via Fischer-Tropsch synthesis (FTS), the wide product distribution remains a challenge, with a theoretical limit of only 58% for C2-C4 hydrocarbons. We present a process that reaches C2(=)-C4(=) selectivity as high as 80% and C2-C4 94% at carbon monoxide (CO) conversion of 17%. This is enabled by a bifunctional catalyst affording two types of active sites with complementary properties. The partially reduced oxide surface (ZnCrO(x)) activates CO and H2, and C-C coupling is subsequently manipulated within the confined acidic pores of zeolites. No obvious deactivation is observed within 110 hours. Furthermore, this composite catalyst and the process may allow use of coal- and biomass-derived syngas with a low H2/CO ratio.
              Article 0 comments Cited 291 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Title: Nature Chemistry
                Abbreviated Title: Nature Chem
                Publisher: Springer Nature
                ISSN (Print): 1755-4330
                ISSN (Electronic): 1755-4349
                Publication date Created: June 12 2017
                Publication date (Print): June 12 2017
                Volume:
                Issue:
                Article
                DOI: 10.1038/nchem.2794
                PubMed ID: 28937667
                SO-VID: 192de9c4-4e86-4a5d-b95f-de11d9a97483
                Copyright © © 2017
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