Tsinghua University

Kuo-Chu Hwang

Chien-Chong Hong

Zi-Xiang Lin

A preparation method of carboxylic acids or ketones using ozone, singlet state oxygen atom O(D) or hydroxyl free radical is provided. The method includes: filling ozone, singlet state oxygen atom O(D) and/or hydroxyl free radical to cycloalkanes or benzenes at a pre-determined temperature and a pre-determined pressure in the presence or absence of light irradiation to produce carboxylic acids or ketones. The reaction occurs at room temperature and atmospheric pressure without producing harmful side products. The preparation method is a simple, low energy consuming, and eco-friendly method.

Preparation method of carboxylic acids or ketones using ozone, singlet state-oxygen atom or hydroxyl free radical

The present invention provides a hybrid nanomaterial electrode, comprising a pair of spaced-apart electrodes, at least three pairs of metallic nanowires disposed between the electrodes and respectively connected with the electrodes, and at least a detecting material connecting with the metallic nanowires. The detecting material is formed as a semiconductor nanostructure or a conductor nanostructure. The hybrid nanomaterial electrode of the present invention can be used in a gas detector for detecting volatile organic compounds, and has the advantage of providing high sensitivity, low detection limit, and the ability to operate at room temperature.

Growing community of inventors

Tainan, Taiwan

Kuo-Chu Hwang