The article discusses the growing importance of green hydrogen and the target set by the U.S. Department of Energy to reduce the cost of clean hydrogen production. It emphasizes the role of proton exchange membrane (PEM) water electrolysis technology in achieving this target, particularly in reducing capital costs by minimizing the total Pt-group metal loading. While Pt remains the material of choice for the hydrogen evolution reaction due to its unmatched activity, the article explores the need for low Pt-group metal cathodes to enhance cost efficiency. Researchers developed a novel electrocatalyst by combining Pt nanoclusters with MXene support, creating a catalyst that matched the efficiency of commercial catalysts but with significantly reduced Pt loading on the cathode. This new Mo2TiC2-PtNC catalyst demonstrated exceptional stability and efficiency in pure water splitting over extended periods, showing promise for future PEM devices. By fine-tuning the electronic properties of Pt nanoclusters and utilizing MXene support, the catalyst achieved robust hydrogen evolution performance, highlighting its potential for practical implementation in hydrogen production.