相关实验视频

Updated: Jan 11, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

过渡金属C₂N₂的计算高通量选氧降解反应的电催化剂

Li Ma¹, Xiangjie Fu¹, Jueyi Ye¹

¹Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.

Langmuir : the ACS journal of surfaces and colloids

|November 10, 2025

概括

这项研究选了过渡金属 (TM) C2N2催化剂的氧降解反应 (ORR). Ti-C2N2和Mn-C2N2表现出高活性和稳定性,为贵金属催化剂提供了有前途的替代品.

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
计算化学计算化学

背景情况:

高效的能量转换技术需要稳定和活跃的电催化剂.
过渡金属 (TM) 添加碳材料,特别是TM-C2N2,对电化学氧降解反应 (ORR) 显示出希望.
缺乏对TM-C2N2中中心原子对ORR性能影响的系统研究.

研究的目的:

为了系统地选具有不同中心原子的TM-C2N2单层催化剂.
研究ORR中TM-C2N2的相互作用模式和催化机制.
为了确定新的,非贵金属催化剂,有效的ORR.

主要方法:

密度函数理论 (DFT) 的计算.
对38种候选TM-C2N2材料进行高通量选.
分析电子结构,相互作用模式和催化机制.

主要成果:

改变d频段的中心有效地减轻了过度的中间吸附.
介质和TM-C2N2之间的相互作用强度决定了ORR的催化活性.
确定了Ti-C2N2和Mn-C2N2作为具有低超电位 (分别为0.34V和0.41V) 和高稳定性的有希望的候选物.

结论:

Ti-C2N2和Mn-C2N2是ORR的有效非贵金属电催化剂.
在TM-C2N2.2.中,d波段中心和中间相互作用强度是ORR性能的关键因素.
这项研究为设计先进的ORR催化剂提供了理论指导.

更多相关视频

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

相关概念视频

Thermal and Photochemical Electrocyclic Reactions: Overview

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.