The honeycomb-like nickel(III/II) oxide interpenetrated framework arrays labelled as H-NiO_x are used as cathode catalysts for the degradation of bisphenol A (BPA) in visible light-excited fuel cells. The nanoparticle close-packed NiO_x aggregates (C-NiO_x) and H-NiO_x are prepared by conventional electrodeposition (ED) and advanced oxidation-associated electrodeposition (AO-ED) strategies, carried out by multiple voltammetry controlled in the potential ranges of 0 to –1.3 V and 1.3 to –1.3 V (vs. SCE), respectively. Compared with C-NiO_x, the H-NiO_x frameworks with smaller charge transfer resistance and higher surface-confined redox-active centers exhibit larger cathode electrocatalytic activity for the photocatalytic degradation of BPA. The NaClO can act as a sacrificial agent to sustain the integrity and stability of H-NiO_x cathode. The H-NiO_x-assisted BPA degradation conditions are optimized by changing process variables. The BPA is degraded by 48.5% within 120 min in photocatalytic BPA (1.0 mmol L^-1, pH 13) fuel cell employing H-NiO_x cathode, CdS/TiO₂ photoanode and 0.2 mol L^-1 NaClO catholyte, and its degradation rate conforms to the first-order reaction kinetic model. The H-NiO_x can remarkably enhance the performances of the photocatalytic fuel cell, achieving a 4.1-fold or 15.2-fold increase in the short circuit current and maximum power density compared with that using bare cathode.

蜂窝状镍（III / II）氧化物互穿框架标记为H-NiO _x用作阴极催化剂，以降解可见光激发燃料电池中的双酚A（BPA）。纳米颗粒紧密堆积的NiO _x聚集体（C-NiO _x）和H-NiO _x是通过常规电沉积（ED）和高级氧化相关电沉积（AO-ED）策略制备的，并通过在电位范围内控制的多次伏安法进行分别为0至–1.3 V和1.3至–1.3 V（相对于SCE）。与C-NiO _x相比，H-NiO _x具有较小电荷转移阻力和较高表面受限氧化还原活性中心的骨架对BPA的光催化降解表现出较大的阴极电催化活性。NaClO可以充当牺牲剂，以维持H-NiO _x阴极的完整性和稳定性。通过改变工艺变量来优化H-NiO _x辅助的BPA降解条件。在使用H-NiO _x阴极，CdS / TiO ₂光电阳极和0.2 mol L ^-1 NaClO阴极的光催化BPA（1.0 mmol L ^-1，pH 13）燃料电池中，BPA在120分钟内降解了48.5％。符合一阶反应动力学模型。H-NiO _x 可以显着提高光催化燃料电池的性能，与使用裸阴极相比，短路电流和最大功率密度提高4.1倍或15.2倍。