Few-layer exfoliated black phosphorus (Ex-BP) has attracted tremendous attention owing to its promising applications, including in electrocatalysis. However, it remains a challenge to directly use few-layer Ex-BP as oxygen-involved electrocatalyst because it is quite difficult to restrain structural degradation caused by spontaneous oxidation and keep it stable. Here, a robust carbon-stabilization strategy has been implemented to prepare carbon-coated Ex-BP/N-doped graphene nanosheet (Ex-BP/) nanostructures at room temperature, which exhibit superior oxygen evolution reaction (OER) activity under alkaline conditions. Specifically, the as-synthesized Ex-BP/[email protected] hybrid presents a low overpotential of 257 mV at a current density of 10 mA cm⁻² with a small Tafel slope of 52 mV dec⁻¹ and shows high durability after long-term testing. View Full-Text

中文翻译：

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几层黑色磷的稳健碳稳定作用，可实现优异的析氧反应

几层剥落黑磷（Ex-BP）由于其前景广阔的应用而引起了极大的关注，包括在电催化中的应用。然而，直接使用数层的Ex-BP作为涉及氧的电催化剂仍然是一个挑战，因为很难抑制自发氧化引起的结构降解并使其保持稳定。在这里，已经实施了稳健的碳稳定策略，以在室温下制备碳包覆的Ex-BP / N掺杂石墨烯纳米片（Ex-BP /）纳米结构，该结构在碱性条件下表现出优异的氧释放反应（OER）活性。具体而言，合成后的Ex-BP / [受电子邮件保护]混合电流在10 mA cm ^-2的电流密度下呈现257 mV的低过电势，而Tafel斜率较小，为52 mV dec ^-1并经过长期测试显示出高耐久性。查看全文