&lt;div id="i4c-draggable-container" style="position: fixed; z-index: 1499; width: 0px; height: 0px;"&gt;&lt;div class="resolved" data-reactroot="" style="all: initial;"&gt; &lt;/div&gt;&lt;/div&gt;&lt;div id="i4c-draggable-container" style="position: fixed; z-index: 1499; width: 0px; height: 0px;"&gt; &lt;div class="resolved" data-reactroot="" style="all: initial;"&gt; &lt;/div&gt; &lt;/div&gt; &lt;div id="i4c-draggable-container" style="position: fixed; z-index: 1499; width: 0px; height: 0px;"&gt; &lt;div class="resolved" data-reactroot="" style="all: initial;"&gt; &lt;/div&gt; &lt;/div&gt; Efficient conversions of CO2 into value-added chemicals such as alcohols are of great industrial and scientific interest. The Cu/ZnO/Al2O3 catalyst has been extensively studied and commercialized in the industry to produce C1 alcohol, methanol from CO2 hydrogenation. In contrast, for Cu-based catalysts, successful attempts to achieve the production of higher alcohols, such as ethanol, which is safer and offers higher energy density, are very limited, due to the difficulty in C-C bond coupling and thus low selectivity. Most Cu-based catalysts are active for the reverse water gas shift (RWGS) reaction and hydrogenation of CO rather; while the C-O bond activation is difficult, which hinders C-C bond formation. Promoters such as Fe have been reported previously, which can facilitate C-O bond dissociation over Cu catalysts. In addition, alkali metal promoters, including K and Cs, have also shown the capability of C chain growth over Cu-based catalysts. Yet, the reaction mechanism remains elusive. Here, combining surface science experiments and DFT calculations, we present a detailed mechanistic understanding of the roles that Cs plays in ethanol production at the Cu-Cs-ZnO interface under CO2 hydrogenation condition. Our study not only leads to the discovery of new pathways for ethanol production from CO2 hydrogenation but also opens new possibilities to allow the highly active and selective CO2 conversion to higher alcohols on widely used and low-cost Cu-based catalysts. &lt;div id="i4c-dialogs-container"&gt; &lt;/div&gt; &lt;div id="i4c-dialogs-container"&gt; &lt;/div&gt;&lt;div id="i4c-dialogs-container"&gt; &lt;/div&gt;

Cesium-promoted ethanol production from CO2 hydrogenation on Cu/ZnO(000) surface: Full mechanistic study

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.