New nanostructured heterogeneous catalysts with increased selectivity and stability
文献情報
Ilkeun Lee, Manuel A. Albiter, Qiao Zhang, Jianping Ge, Yadong Yin, Francisco Zaera
In this perspective, several examples of work from our laboratory are reported where colloidal or self-assembly chemistry has been used to design new catalysts with specific properties. In the first, platinum nanoparticles with well-defined shapes have been dispersed on a high-surface-area silica support in order to take advantage of the structure sensitivity exhibited by the interconversion between the cis and trans isomers of olefins. The second case involves the use of dendrimers as scaffolding structures to prepare catalysts with small platinum nanoparticles of well-defined size. Reduced sintering of metal nanoparticles on supported catalysts is accomplished in our third example via their encapsulation inside a layer of mesoporous silica deposited on top, after metal dispersion, and etched using a newly developed surface-protection process. The final project refers to the use of yolk@shell metal-oxide systems as nanoreactors for photocatalysis. In all those examples, new synthetic nanotechnology has been directed to address a specific issue in catalysis previously identified by surface-science studies.
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
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