Devassy Anu Maria Chittilappilly, Wankhede Karuna Dagaji, Kamalakshan Adithya, Mandal Sarthak
Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India.
Nanoscale. 2024 Jun 27;16(25):12060-12070. doi: 10.1039/d4nr01375a.
To date, metal oxide catalysts have not been explored as cathode materials for robust and high-performance single-compartment HO fuel cells due to significant non-electrochemical disproportionation losses of HO on many metal oxide surfaces. Here, for the first time, we demonstrate an acidic peroxide fuel cell with antimony doped tin oxide as the cathode and widely used Ni foam as the anode material. Our constructed peroxide fuel cell records a superior open circuit potential of nearly 0.82 V and a maximum power density of 0.32 mW cm with high operational stability. The fuel cell performance is further improved by increasing the ionic strength of the electrolyte with the addition of 1 M NaCl, resulting in an increased maximum power density value of 1.1 mW cm.
迄今为止，由于在许多金属氧化物表面上过氧化氢存在显著的非电化学歧化损失，金属氧化物催化剂尚未被探索用作坚固且高性能单室过氧化氢燃料电池的阴极材料。在此，我们首次展示了一种以锑掺杂氧化锡为阴极、广泛使用的泡沫镍为阳极材料的酸性过氧化物燃料电池。我们构建的过氧化物燃料电池记录了近0.82 V的优异开路电位和0.32 mW/cm²的最大功率密度，且具有高运行稳定性。通过添加1 M氯化钠增加电解质的离子强度，燃料电池性能进一步提高，最大功率密度值增加到1.1 mW/cm²。
