Awards and Results

Hanson Grand Award



至尊慳神大獎




Hanson Grand Award

City University of Hong Kong

Leung Tsz Kei, Zhou Jinsong


Green Hydrogen Production by Electrocatalytic Water Splitting

Hydrogen energy, as a zero-carbon emission source, is crucial for the future development of green and sustainable practices. However, currently, green hydrogen production, which involves electrolyzing water using renewable energy sources, constitutes only a small fraction of overall hydrogen production. Other methods of hydrogen production continue to contribute to environmental pollution. To meet future energy demands and achieve carbon neutrality targets, it is imperative to foster the development of green hydrogen.

In this regard, we have designed a straightforward approach that involves a reaction with hydrogen gas to create molybdenum disulfide with sulfur vacancies—an efficient electrocatalyst. This electrocatalyst significantly enhances the efficiency of hydrogen production through water electrolysis. Its low-cost materials and simple manufacturing process make it commercially viable, thereby driving the development of green hydrogen. Through testing, our catalytic design has demonstrated remarkable effectiveness, achieving a potential of 168 millivolts at 10 milliamperes per square centimeter, compared to the untreated molybdenum disulfide, which exhibits over 1,000 millivolts of overpotential.

By employing this novel electrocatalyst, we can revolutionize the field of hydrogen production, making it more efficient and environmentally friendly. The utilization of this catalyst has the potential to contribute significantly to the advancement of green hydrogen technologies and propel the transition towards a sustainable energy future.

Figure 1 - Electrochemical Cell for Performance Testing


Figure 2 - MoS2 Electrocatalyst



The contents provided herein are from the winning entries. The Electrical and Mechanical Services Department does not endorse or assume any liability for the accuracy, completeness, or reliability of the contents presented.




至尊慳神大獎

香港城市大學

梁芷琦、周近松


綠色製氫 – 高效電解水催化劑

氫能作為一種零碳排放的能源,對於未來的綠色環保發展至關重要。而現在,綠色製氫,即利用綠色能源電解水產氫,只佔氫能生產的一小部分,其他產氫方法仍然會對環境產生污染。為了應付未來能源需求以及碳中和目標,促進綠色氫能發展至關重要。

我們設計了一個簡單的方法,通過與氫氣加熱反應,製造了帶有硫空位的二硫化鉬—一種高效的電催化劑,能大大提升電解水產氫的效率。低成本的材料及簡單的製造方法,使這個電催化劑具備工業化的條件,推動綠色氫能發展。經測試,本催化劑在10毫安每平方釐米的電流密度下,過電位能達到168毫伏,而未經處理的二硫化鉬過電位超過一千毫伏,證實我們的設計非常有效。

圖1 - 以電化電池模擬產氫以及測試性能


圖2 - 二硫化鉬電催化劑



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