摘要:在氮气下一步退火含有植酸和钴的前驱体,合成了一种新型的CoP/Co2P/C复合纳米材料作为电催化剂,该催化剂在全pH值范围下表现出优异的电催化析氢活性和稳定性.在0.5mol/L的硫酸中,电流密度为10mA/cm^2时,过电位为135mV.在1mol/L KOH溶液中,CoP/Co_2P/C催化剂需要141 mV的过电位才能使电流密度达到10 mA/cm^2,在0.1mol/L磷酸盐缓冲溶液中,需要155mV的过电位才能使电流密度达到10mA/cm^2.这种优异的析氢活性主要归因于CoP/Co_2P纳米粒子和C层之间的协同作用.
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