| 芘基石墨炔负载小尺寸金纳米颗粒用于氮气电还原 |
| Small-size Au nanoparticles anchored on pyrenyl-graphdiyne for N2 electroreduction |
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| 摘要: 采用海绵状芘基石墨炔(Pyr-GDY)锚定金纳米颗粒制备催化剂Au/Pyr-GDY，其中金纳米粒子的平均尺寸为3.69 nm。该催化剂在氮气饱和的电解液中表现出良好的电催化氮气还原活性，在-0.3 V (vs RHE)条件下，氨产率为32.1 μg·h-1·mgcat-1，是Au/C (锚定在炭黑上的金纳米颗粒)的3.5倍。此外，Au/Pyr-GDY电催化氮气还原反应的法拉第效率为26.9%，并且具有超过22h的催化耐久性。 |
| 关键词: 石墨炔 小尺寸金纳米粒子 电催化氮气还原 |
| 基金项目: 国家自然科学基金(No.U21A20286，21931007)资助。 |
| Abstract: A gold catalyst of Au/ pyrenyl - graphdiyne (Pyr - GDY) was prepared by anchoring small size of gold nanoparticles (Au NPs) on the surface of Pyr-GDY for electrocatalytic nitrogen reduction reaction (eNRR), in which Au NPs with a size of approximately 3.69 nm was evenly distributed on spongy-like porous Pyr-GDY. The catalyst exhibited a good electrocatalytic activity for N2 reduction in a nitrogen-saturated electrolyte, with an ammonia yield of 32.1 μg·h-1·mgcat-1 at -0.3 V (vs RHE), 3.5 times higher than that of Au/C (Au NPs anchored on carbon black). In addition, Au/Pyr-GDY showed a Faraday efficiency (FE) of 26.9% for eNRR, and a good catalysis durability for over 22 h. |
| Keywords: graphdiyne small-size Au nanoparticle electrocatalytic nitrogen reduction |
| 投稿时间：2024-08-14 修订日期：2024-11-17 |
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| 刘畅,张超,鲁统部.芘基石墨炔负载小尺寸金纳米颗粒用于氮气电还原[J].无机化学学报,2025,41(1):174-182. |
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| Support information: 相关附件： 20240305-Supporting Information.doc |
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