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Cargnellogroup @ Stanford

We design, synthesize, characterize and test materials for heterogeneous catalysis and photocatalysis. Our focus is on reactions revolving around energy and environmental themes, with emphasis on the chemistry of small building blocks that are at the heart of past, present and future history: hydrogen, carbon dioxide, methane, water, nitrogen.

The starting point for our studies are well-defined nanocrystals and nanostructures, and we tune and tailor their architecture at the atomic level to understand how a specific structure influences the final properties of the system. We prepare and study our materials by using state-of-the-art synthetic and characterization techniques that include colloidal and supramolecular chemistry, advanced microscopy, x-ray-based spectroscopies and functional testing in our ~1600 sq ft brand new lab in the Shriram center and, more in general, using the great facilities located at Stanford and in the nearby SLAC national laboratory.

Our goal is to help the planet transition to a cleaner and sustainable future, where resources are available to a larger part of the population and the economic growth is accompanied by an improvement in the living conditions and in the quality of the environment. We are motivated by big challenges that mankind has to face, and we want to contribute in our own way: using small, tiny particles, or nanocrystals, to speed-up chemical reactions that can provide sustainable fuels and chemicals and reduce pollution.

Each of us in the group has her/his own independent project, yet connected to the bigger picture, like a piece of the puzzle. We believe that only team work, motivation and dedication can indeed advance science and provide us with solutions. If you share our values, join us in this exciting journey!

News

29 June 2020:
Our work on the effect of water sorption on methane combustion with supported Pd catalysts led by Weixin is now published in ACS Catalysis! Read it here

17 June 2020:
In a fantastic three years-long collaborative work between experiments and theory, Angel, Tej and Verena reveal the active site ensemble for propene combustion on Pd/Pt supported catalysts in a paper published in Proceedings of the National Academy of Sciences! Read it here

17 June 2020:
Andrew's work on a versatile synthesis to prepare polymer/nanocrystal composites demonstrating substrate size-selectivity for catalytic transformations is now published in Chemistry of Materials! Read it here

13 May 2020:
Ethan's and Rosa's work on describing the optical properties of Ni, Pd and Pt nanocrystals and a method to measure their concentration in solution is published in Colloids and Surfaces A! Read it here

News Archive

Research

We are in urgent need of sustainable energy generation processes, energy vectors, and solutions to reduce pollution and greenhouse gas emissions.

Active, stable and selective

We are studying synthetic ways to make catalysts not only more active, but also more selective and more stable by exploiting confinement effects in which nanocrystals and active phases are embedded inside 3-dimensional cavities.


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Precise and well-defined

We study nanostructures that have precise sizes and/or structures and use them to answer fundamental questions regarding reaction mechanisms. This fundamental knowledge allows us (and others) to prepare even better catalysts.


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Environmentally friendly

We envision materials that can use light as an energy input to convert compounds and pollutants into valuable chemicals, such that chemical processes could be run sustainably at room temperature and pressure.


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Meet the Team

  Meet the team

Teaching

CHEMENG 31N: When Chemistry Meets Engineering, Fall 2019
Chemistry and engineering are subjects that are ubiquitous around us. But what happens when the two meet? Students will explore this question by diving into experimental problems that scientists and engineers have to face on a daily basis. Many processes that are taken for granted have been developed by understanding science at a very fundamental level and then applying it to large and important industrial processes. In this seminar, students will explore some of the basic concepts that are important to address chemical engineering problems through experimental work. Students will build materials for energy and environmental applications, understand how to separate mixtures into pure compounds, produce fuels, and will learn to look at the chemical properties of molecules that are part of daily life... with a different eye.

CHEMENG 130A: Microkinetics - Molecular Principles of Chemical Kinetics, Spring 2020
This course covers the basis of chemical kinetics that are used to design chemical processes and reactor design. Topics include: origin of rate expression in chemical reactions; experimental generation and analysis of kinetic data; relationship between kinetic and thermodynamic quantities; concepts of elementary steps and reaction orders; reactions in parallel and in sequence; branched reactions; collision theory and introduction to transition state theory; heterogeneous catalysis and surface reactions; enzymatic catalysis; applications of kinetics.

Publications

                           


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Facilities

The Cargnellogroup moved into its new lab in January 2016 and started to cook some great science. Stay hungry!