News & Stories

Researchers at The Hong Kong University of Science and Technology (HKUST) have developed a new hydrogen fuel cell which is not only the world’s most durable1 to date, but is also more cost-effective, paving way for a wider application of green energy in the pursuit of a carbon neutral world. Hydrogen fuel cell is a promising clean energy option as it generates power by converting hydrogen and oxygen into electricity, with zero emission of carbon dioxide, particulate matters and other air pollutants that may cause smog and other health problems.  Despite its environmental benefits and years of development, hydrogen fuel cell was still not widely commercialized.  That is because its power generation depends heavily on an electrocatalyst - which is largely made up of the expensive and rare metal platinum. 

A research team led by scientists from the Hong Kong University of Science and Technology (HKUST) unveiled a first-in-kind study of nitrogen oxides (NOx) and its role in the rise and fall of airborne sulfates in hazy air pollution, offering policymakers new insights into ways to tackle smoggy weather.  Dense, hazy fog episodes characterized by relatively high humidity, low visibility and extremely high PM2.5 have been a headache to many megacities including those in Mainland China. Among pollutants that are less than 2.5 microns in diameter (PM2.5), airborne sulfate is one of the most common components of hazy air pollution formed atmospherically via the oxidation of sulphur dioxide (SO2).