91˿Ƶ

In-person class cancellation and work-from-home / Annulation des cours en présentiel et télétravail

Updated: Tue, 03/10/2026 - 17:14
In-person class cancellation and work-from-home / Annulation des cours en présentiel et télétravail. McGILL ALERT! Due to freezing rain all in-person classes and activities on Wednesday, March 11, will be cancelled. Staff are asked not to come to campus tomorrow unless they are required on site by their supervisor to perform necessary functions and activities. See your 91˿Ƶ email for more information.
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ALERTE McGILL! En raison de la pluie verglaçante, tous les cours et activités en présentiel prévus pour le mercredi 11 mars sont annulés. Nous demandons au personnel de ne pas se présenter sur le campus demain, à moins que leur superviseur ne leur demande d’être sur place pour accomplir des fonctions ou activités nécessaires au fonctionnement du campus. Pour plus d’informations, veuillez consulter vos courriels de 91˿Ƶ.
News

Another step forward for green chemistry

91˿Ƶ researchers find small quantities of silver can serve as an efficient catalyst to convert aldehydes to acids

A tiny bit of silver, combined with water and air, can convert aldehydes into acids efficiently -- instead of the classical methods using stoichiometric amounts of expensive or toxic metal oxidants, according to a new study by 91˿Ƶ researchers.

Published: 27 March 2015

The findings, published March 27 in the journal Science Advances, could lead to a variety of possible applications in the chemical industry. The results also promise to advance the search for more environmentally friendly chemical conversion reactions using air as a green oxidant, said Chao-Jun Li, senior author of the paper and Canada Research Chair in Green Chemistry at 91˿Ƶ.

For the past two decades, researchers at 91˿Ƶ and elsewhere have been exploring ways to do away with chemists’ traditional reliance on non-renewable petrochemical feedstocks, less efficient chemical transformations and toxic solvents. One important method has involved using water as a solvent.

The other authors of the new paper are Mingxin Liu, Haining Wang and Huiying Zeng, also of 91˿Ƶ’s Department of Chemistry.

The research was supported by the Canada Research Chairs program, the Canada Foundation for Innovation, Le Fonds de recherche du Québec – Nature et technologies, and the Natural Sciences and Engineering Research Council of Canada.

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“Silver(I) as a widely applicable, homogeneous catalyst for aerobic oxidation of aldehydes toward carboxylic acids in water—‘silver mirror’: From stoichiometric to catalytic”, Mingxin Liu et al, Science Advances, 27 March 2015. 10.1126/sciadv.1500020

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