A catalyst capable of high performance and good durability is developed for use in anode of flow-type membraneless hydrogen peroxide fuel cells (HPFCs). For that, cobalt phthalocyanine (CoPc) is immobilized onto reduced graphene oxide (rGO) linked to polyacrylic acid (PAA) surface modifier (rGO/PAA/CoPc). CoPc moiety containing PAA is tightly immobilized due to physical entrapment, axial ligand and stabilization of intermediates. According to evaluations, the amount of CoPc immobilized in rGO/PAA/CoPc is twice than that in rGO/CoPc because rGO and CoPc are weakly connected by π-π conjugation without PAA acting as axial ligand to form coordinate bond with Co core within CoPc. In rGO/PAA/CoPc, current density for hydrogen peroxide oxidation reaction (HPOR) is 2.7 times higher than that measured in rGO/CoPc due to axial ligand role of PAA activating two HPOR pathways, wheras rGO/CoPc is only linked to one HPOR pathway. Even in stability test, rGO/PAA/CoPc preserves 90.0% of its initial HPOR current density, while that of Ni bulk is decreased by 30.6%. When performance of HPFC using rGO/PAA/CoPc is measured with a low concentration of H₂O₂ (0.1 mol L^-1) under physiological condition, its maximum power density (72.1 ± 2.68 μWcm⁻²) is better than that of HPFC using rGO/CoPc (38.3 ± 0.20 μWcm⁻²).

开发了一种高性能和高耐久性的催化剂，用于流动型无膜过氧化氢燃料电池（HPFC）的阳极。为此，将钴酞菁（CoPc）固定在与聚丙烯酸（PAA）表面改性剂（rGO / PAA / CoPc）连接的还原氧化石墨烯（rGO）上。由于物理截留，轴向配体和中间体的稳定化，含有CoPc部分的PAA被紧密固定。根据评估，固定在rGO / PAA / CoPc中的CoPc量是rGO / CoPc的两倍，这是因为rGO和CoPc通过π-π共轭弱连接而没有PAA作为轴向配体与CoPc中的Co核形成配位键。在rGO / PAA / CoPc中，过氧化氢氧化反应（HPOR）的电流密度为2。由于PAA激活两个HPOR途径​​的轴向配体作用，因此比rGO / CoPc高7倍，而rGO / CoPc仅与一个HPOR途径​​相关。即使在稳定性测试中，rGO / PAA / CoPc仍可保留其初始HPOR电流密度的90.0％，而镍的体积降低了30.6％。使用低浓度H来测量使用rGO / PAA / CoPc的HPFC的性能时在生理条件下使用₂ O ₂（0.1 mol L ^-1），其最大功率密度（72.1±2.68μWcm ^-2）优于使用rGO / CoPc（38.3±0.20μWcm ^-2）的HPFC 。