Hydrogen peroxide (HO) fuel cells have garnered considerable attention as a promising alternative power source for micro/nano-electronic devices due to their noteworthy attributes, encompassing elevated energy density and reduced environmental footprint. Nevertheless, these fuel cells confront intricate technological intricacies and pragmatic application impediments, prominently encompassing challenges concerning limited stability and modest catalytic efficacy. We demonstrate an innovative methodology employing carbon yarns—comprising carbon nanotubes (CNTs) or carbon fibers (CNFs)—as electrodes, synergistically amalgamated with C-anchored Fe [{Co(CN)}] and non-precious metal wire in a coaxial HO fuel cell configuration. This augmentation culminates in a notable amplification in fuel cell performance, substantiated by the achievement of an exceptional maximum power density of 15.01 mW cm. Furthermore, the open circuit voltage sustain operation for an extended duration of 26 h with minimal decay. We also investigate the impact of varying lengths of fiber fuel cell on performance. Collectively, the work underscores the potential of carbon yarns as promising fiber fuel cell electrodes, poised to enable high-performance and enduring long coaxial HO fuel cells. These advancements hold implications for portable and implantable electronic devices, facilitating sustainable and effective energy solutions.

中文翻译：

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同轴过氧化氢燃料电池中基于碳纱的高效发电


过氧化氢（H2O）燃料电池作为微/纳米电子设备的一种有前景的替代电源，因其具有显着的特性（包括提高能量密度和减少环境足迹）而受到广泛关注。然而，这些燃料电池面临着错综复杂的技术和实用的应用障碍，其中突出的挑战包括有限的稳定性和适度的催化功效。我们展示了一种创新方法，采用碳纱线（包括碳纳米管 (CNT) 或碳纤维 (CNF)）作为电极，与 C 锚定 Fe [{Co(CN)}] 和非贵金属线协同混合在同轴 HO 中燃料电池配置。这种增强最终导致燃料电池性能显着增强，并实现了 15.01 mW cm 的卓越最大功率密度。此外，开路电压可维持长达 26 小时的延长运行时间，并且衰减最小。我们还研究了不同长度的纤维燃料电池对性能的影响。总的来说，这项工作强调了碳纱作为有前途的纤维燃料电池电极的潜力，有望实现高性能和持久的长同轴 H2O 燃料电池。这些进步对便携式和植入式电子设备产生了影响，促进了可持续和有效的能源解决方案。