**Have Chemists Been Optimizing the Wrong Variable in Dynamic Catalysis?**<\/p>\n
A recent investigation from the University of Houston indicates that chemists might have been concentrating on the incorrect variable for years regarding dynamic catalysis. Traditionally, catalysts are perceived as “static,” functioning under fixed conditions and at a predetermined pace. Nonetheless, as Omar Abdelrahman from the University of Houston illustrates, dynamic or programmable catalysts are crafted to operate more effectively by introducing oscillations in their environment, such as alternating applied voltage, to boost their catalytic activity.<\/p>\n
The common assumption has been that a dynamic catalyst’s performance hinges on the duration it spends in each state or oscillation. However, Abdelrahman and co-author Atharva Burte found that the degree of the reaction\u2014how much reactant transitions into product\u2014plays a more vital role. Their tests on the electro-oxidation of formic acid on a platinum surface showed that reaction rates are influenced by the portion of chemistry occurring in each dynamic state rather than the time spent in each state.<\/p>\n
Paul Dauenhauer from the University of Minnesota, who has teamed up with Abdelrahman previously, comments on the findings by noting that under dynamic circumstances, kinetic parameters like reaction order and activation energy correspond more closely with the reaction’s progression rather than its duration. Abdelrahman claims that their theoretical forecasts were validated in the lab, reinforcing the notion that reaction progress, not time, is the primary factor.<\/p>\n
The new framework indicates that dynamic catalysts necessitate less energy for significant speed enhancements compared to static catalysts. The oscillations disrupt the conventional limitations of surface chemistry, leading to highly expedited pathways that are unattainable under static conditions. This principle, founded in thermodynamics and kinetics, holds the promise of wider applicability across diverse energy inputs and timescales. If confirmed in other systems, this could transform the design of catalysts driven by electrical, light, or mechanical inputs.<\/p>\n
Abdelrahman envisions using this framework as a model for developing next-generation catalyst systems, potentially hastening progress in clean energy technologies, such as hydrogen production and efficient fuel cells, which are vital for tackling sustainability issues.<\/p>\n
However, Dauenhauer warns that dynamic catalysis will only be practical if the advantages exceed the energy needed for oscillations, especially when scaling up for industrial applications. Challenges persist, particularly in ensuring uniform potential oscillations across large industrial catalysts compared to small laboratory electrodes.<\/p>\n","protected":false},"excerpt":{"rendered":"
**Have Chemists Been Optimizing the Wrong Variable in Dynamic Catalysis?** A recent investigation from the University of Houston indicates that chemists might have been concentrating on the incorrect variable for years regarding dynamic catalysis. Traditionally, catalysts are perceived as “static,” functioning under fixed conditions and at a predetermined pace. Nonetheless, as Omar Abdelrahman from the […]<\/p>\n","protected":false},"author":1,"featured_media":373496,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174],"class_list":["post-373495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-source-chemistryworld-com"],"_links":{"self":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts\/373495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=373495"}],"version-history":[{"count":0,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts\/373495\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/media\/373496"}],"wp:attachment":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=373495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=373495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=373495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}