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合成石墨烯与原子隔离的从一个有前途的石墨烯类超分子中定

Guoli Zheng¹, Shunfa Zhou², Xuan Zhou³

¹Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China.

Chemical communications (Cambridge, England)

|June 26, 2023

概括

少数层的--石墨烯 (CoN-石墨烯) 被合成用于电化学反应. 这种新型催化剂与金相比,显示出更高的直接甲醇燃料电池性能,突出显示了其能量转换潜力.

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
催化剂是一种催化剂.

背景情况:

异原子合石墨烯对光化学和电化学反应具有前景.
可控合成兴奋剂石墨烯仍然是一个重大挑战.
-兴奋剂为催化提供了独特的电子特性.

研究的目的:

为少数层--石墨烯 (CoN-石墨烯) 开发一种简单的合成策略.
评估CoN-石墨烯在直接甲醇燃料电池 (DMFC) 中的电化学性能.
为了证明CoN-石墨烯作为替代催化剂的潜力.

主要方法:

通过 pyrolysis 脱皮制造少层 CoN- 石墨烯的制造.
CoN-石墨烯的表征,包括原子的存在和厚度.
在直接甲醇燃料电池设置中对CoN-石墨烯进行电化学测试.

主要成果:

成功合成了几层CoN-石墨烯与原子 (1.8纳米厚度).
获得了0.875V的半波潜力,与CoN-石墨烯的RHE相比.
在直接甲醇燃料电池中证明了100%的性能,超过了商业Pt/C催化剂.

结论:

热解脱皮提供了一种可控制且易于合成CoN-石墨烯的途径.
CoN-石墨烯对DMFCs表现出极好的电催化活性和稳定性.
在能量转换设备中,CoN-石墨烯是催化剂的可行,高性能替代品.

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