Boron-doped diamond powder (BDDP) and boron-doped nanodiamond (BDND) were developed with the aim of expanding the area of application of conductive diamond electrodes. BDDP and BDND are conductive diamond powders obtained by depositing a boron-doped diamond (BDD) layer on the surface of diamond powder (DP) and nanodiamond (ND) substrates, respectively, by using the chemical vapor deposition method. As the particle size of BDDP depends on that of the DP substrate, it can be arbitrarily selected in the range of at least submicrometer to several micrometers. BDDP can be used for an electrode material of screen-printed diamond electrode, which is a disposal and sensitive electrode for electrochemical detection even from biological fluids. BDDP can also be applied to a durable cathode catalyst support of a polymer electrolyte fuel cell. BDND is a conductive diamond particle with a large specific surface area of 650 m²/g or more, and is expected to be used as an electrode material for aqueous electric double-layer capacitors with a large cell voltage leading to high energy and high-power densities. BDDP and BDND are highly versatile functional electrode materials that can be made into inks and pastes, and can be combined easily with other compounds. Therefore, they should be useful for greatly expanding the application fields of diamond electrodes.

中文翻译：

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电化学应用中的导电掺硼金刚石粉末/纳米颗粒

硼掺杂金刚石粉（BDDP）和硼掺杂纳米金刚石（BDND）的开发旨在扩大导电金刚石电极的应用领域。BDDP和BDND是通过使用化学气相沉积法分别在金刚石粉末（DP）和纳米金刚石（ND）基板的表面上沉积硼掺杂金刚石（BDD）层而获得的导电金刚石粉末。由于BDDP的粒径取决于DP基板的粒径，因此可以在至少亚微米至几微米的范围内任意选择。BDDP可用于丝网印刷金刚石电极的电极材料，它是一种用于处理甚至从生物液体中进行电化学检测的敏感电极。BDDP还可以应用于聚合物电解质燃料电池的耐用阴极催化剂载体。² / g或更高，并且有望用作具有大电池电压导致高能量和高功率密度的水性双电层电容器的电极材料。BDDP和BDND是用途广泛的功能性电极材料，可以制成油墨和浆状，并且可以轻松地与其他化合物结合。因此，它们对于极大地扩展金刚石电极的应用领域应该是有用的。