Abstract Development of multiatom-doped carbon nanomaterials as effective electrocatalysts or supports for fuel cell reactions is of great significance due to their outstanding performance. However, the construction of the carbon nanomaterials with multiatom doping and the mechanism of interaction among doped elements remain grand challenging. Herein, we develop, for the first time, a simple and effective sulfonated cobalt phthalocyanine (TSCoPc) pyrolysis strategy to synthesize Co, N and S tri-doped multi-walled carbon nanotubes (Co-N-S-MWCNTs) in a one-pot approach, which are then used as supports for loading highly efficient Pt nanoparticles (Pt/Co-N-S-MWCNTs). Thanks to the rich atoms doped in MWCNTs and the fine sizes of deposited Pt nanoparticles (1.94 nm), which lead to high electro-catalytically active surface areas (111.6 m2 g−1), the fabricated Pt/Co-N-S-MWCNTs exhibit much higher electro-catalytic efficiency and relatively increased electrochemical stability for methanol oxidation reaction (MOR) in comparison with Pt loaded on AO-MWCNTs and TSCoPc-MWCNTs (the precursors and intermediates used to produce Co-N-S-MWCNTs). This study shows an easy and reproducible method for multiatom-doped carbon nanomaterials and illustrates the interaction between doped atoms and the deposited Pt nanoparticles, opening a promising avenue for producing highly efficient electrocatalysts in electrochemical energy technologies.

中文翻译：

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磺化钴酞菁衍生的 Co-NS 三掺杂碳纳米管作为铂催化剂载体用于高效甲醇电氧化

摘要 多原子掺杂碳纳米材料作为燃料电池反应的有效电催化剂或载体，由于其优异的性能而具有重要意义。然而，具有多原子掺杂的碳纳米材料的构建和掺杂元素之间的相互作用机制仍然具有挑战性。在此，我们首次开发了一种简单有效的磺化钴酞菁（TSCoPc）热解策略，以一锅法合成 Co、N 和 S 三掺杂多壁碳纳米管（Co-NS-MWCNTs） ，然后用作负载高效 Pt 纳米粒子（Pt/Co-NS-MWCNTs）的载体。由于 MWCNTs 中掺杂的丰富原子和沉积的 Pt 纳米粒子的精细尺寸 (1.94 nm)，这导致高电催化活性表面积 (111.6 m2 g-1)，与负载在 AO-MWCNTs 和 TSCoPc-MWCNTs（用于生产 Co 的前体和中间体）上的 Pt 相比，制造的 Pt​​/Co-NS-MWCNTs 表现出更高的电催化效率和相对增加的甲醇氧化反应（MOR）电化学稳定性-NS-MWCNTs）。该研究展示了一种用于多原子掺杂碳纳米材料的简单且可重复的方法，并说明了掺杂原子与沉积的 Pt 纳米粒子之间的相互作用，为在电化学能源技术中生产高效电催化剂开辟了一条有前途的途径。