Edward H. Sargent

Oct 30, 2024 | nature.com | Yuanjun Chen |Edward H. Sargent

Inspired by pharmaceutical capsules, an extended-release shell to regulate catalyst surface reconstruction is developed, generating highly active sites and leading to enhanced CO2 electroreduction performance.

Aug 4, 2024 | nature.com | Sam Teale |Matteo Degani |Bin Chen |Edward H. Sargent

Correction to: Nature Energy https://doi.org/10.1038/s41560-024-01529-3, published online 4 July 2024. In the version of the article initially published, the chemical reaction in Fig. 4f was shown incorrectly. The original and corrected Fig. 4f can be seen below in Fig. 1. Additionally, the colours in Figs. 5 and 6c have been updated for clarity. These changes have been made to the HTML and PDF versions of the article. Original and corrected Fig. 4f. About this articleTeale, S., Degani, M., Chen, B.

Jul 3, 2024 | nature.com | Panagiotis Papangelakis |Rui Miao |Shijie Liu |Ning Sun |Colin O’Brien |Mohsen Shakouri | +10 more

AbstractThe high concentrations of CO2 in industrial flue gases make these point sources attractive candidates for renewably powered electrocatalytic conversion of CO2 to products. However, trace SO2 in common flue gases rapidly and irreversibly poisons catalysts. Here we report that limiting hydrogen adsorption in the vicinity of electrochemically active sites deactivates SO2 to enable efficient CO2 conversion.

Jul 3, 2024 | nature.com | Sam Teale |Matteo Degani |Bin Chen |Edward H. Sargent

AbstractThe deposition of large ammonium cations onto perovskite surfaces to passivate defects and reduce contact recombination has enabled exceptional efficiency and stability in perovskite solar cells. These ammonium cations can either assemble as a thin molecular layer at the perovskite surface or induce the formation of a low-dimensional (usually two-dimensional) perovskite capping layer on top of the three-dimensional perovskite.

Aug 21, 2023 | nature.com | Mengyang Fan |Rui Miao |Pengfei Ou |Jinqiang Zhang |Weiyan Ni |Ying Wang | +7 more

AbstractAcidic electrochemical CO2 reduction (CO2R) addresses CO2 loss and thus mitigates the energy penalties associated with CO2 recovery; however, acidic CO2R suffers low selectivity. One promising remedy—using a high concentration of alkali cations—steers CO2R towards multi-carbon (C2+) products, but these same alkali cations result in salt formation, limiting operating stability to <15 h.