一种Cu箔负载纳米Cu2O电极的制备方法及其在脉冲二氧化碳电催化还原中的应用
By preparing Cu foil-supported nano-Cu2O electrodes and combining pulse potential and time control, the Cu(111) crystal plane configuration was optimized, solving the problem of unsatisfactory methane selectivity in existing Cu-based electrode materials and realizing efficient carbon dioxide electrocatalytic reduction.
CN120193296BActive Publication Date: 2026-07-17DALIAN UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2025-04-18
- Publication Date
- 2026-07-17
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Figure CN120193296B_ABST
Abstract
本发明属于电催化领域，具体涉及一种Cu箔负载纳米Cu2O电极的制备方法及其在脉冲二氧化碳电催化还原中的应用。本发明将Cu2O纳米涂层修饰Cu箔表面，用于脉冲二氧化碳电还原反应，通过调控脉冲电位，在二氧化碳电还原中实现甲烷高选择性和高电流密度。在‑1.15V vs.RHE时，甲烷的法拉第效率达到了92％，此时甲烷的部分电流密度为111mA·cm‑2，且稳定运行时间超过110小时未见明显衰减，选择性较未修饰铜电极的82％甲烷法拉第效率显著提升。
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