为改善这一问题，科学工作者尝试过多种优化手段，例如采用掺杂-杂原子（阳

To improve this problem, scientists have tried various optimization methods, such as the use of doped-heteroatoms (cations or anions) or carrier composite materials, which can increase the electron density near the carbide Fermi level and reduce the metal Carbide d has empty orbits, which promotes the dissociation and desorption of hydrogen

To improve this problem, scientists have tried a variety of optimization methods, such as the use of doped-heatoms (yang or anion) or carrier composite materials, to improve the electron density near the feminate level, reduce the number of metal carbide d belt empty orbits, and promote the de-absorption of adsorption hydrogen

In order to improve this problem, scientists have tried many optimization methods, such as doping heteroatom (cation or anion) or carrier composite materials, which can improve the electron density near Fermi level of carbides, reduce the number of d-bandgap orbits of metal carbides, and promote the dissociation and desorption of adsorbed hydrogen<br>