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在嵌入碳纳米纤维中的CoPd合金纳米颗粒上,高效电催化酸转化为氨

Yuezhu Wang¹, Xianqiang Yu¹, Ruikai Qi¹

¹Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China.

Journal of colloid and interface science

|December 17, 2025

概括

碳纳米纤维上的双金属-合金纳米粒子有效地将酸盐转化为氨,为污染和有价值的化学品生产提供了可持续的解决方案. 这种催化剂具有很高的活性和稳定性,可用于储能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
环境科学环境科学

背景情况:

酸盐 (NO3-) 污染对环境构成风险.
电催化降解反应 (NO3RR) 到氨 (NH3) 提供了一个可持续的解决方案.
开发高效和稳定的电催化剂对于NO3RR至关重要.

研究的目的:

为了合成和表征嵌入碳纳米纤维 (CNFs) 中的双金属CoPd合金纳米颗粒,用于高性能NO3RR.
评估用于生产氨的CoPd-CNFs的催化活性,选择性和稳定性.
为了证明催化剂在水性Zn-NO3-电池中的实际应用.

主要方法:

催化剂合成的两步电和碳化方法.
电化学表征包括活性和稳定性测试在-0.7V与RHE.
使用CoPd-CNF阴极的水性Zn-NO3-电池的制造和测试.

主要成果:

优化的Co2Pd1-CNF催化剂实现了高NH3产率43.6 ± 0.7毫克h-1cm-2.
观察到异常长期稳定性超过100小时的连续运行.
与单金属对应物和其他报告的NO3RR电催化剂相比,催化剂表现出更高的性能.
该Zn-NO3-电池的功率密度为9.28 mW cm-2.

结论:

CoPd-CNF是高效和耐用的电催化剂,用于可持续的酸盐去除和氨合成.
催化剂的性能超过了NO3RR的现有基准.
该研究强调了CoPd-CNF在下一代储能设备中的潜力.

关键词:

碳纳米纤维的碳纳米纤维 CoPd合金是一种合金.电化学酸盐还原反应反应电子旋转是一种电子旋转.

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Catalysis

Catalysis

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