1. Key electrode materials and devices for direct small molecule fuel cells; 2. Electrolytic production of green hydrogen/oxygen from water; 3. Metal-air batteries and metal-carbon dioxide batteries; 4. Electrochemical reduction of carbon dioxide to produce high-value-added products; 5. Rational design, precise synthesis, and application research of functional nano-noble metal and non-noble metal materials; 6. Exploration of electrocatalytic mechanisms.