Lian Tingting, Xu Li, Piankova Diana, Yang Jin-Lin, Tarakina Nadezda V, Wang Yang, Antonietti Markus
Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany.
Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China.
Nat Commun. 2024 Jul 23;15(1):6199. doi: 10.1038/s41467-024-50476-w.
Nanoporous carbons with tailorable nanoscale texture and long-range ordered structure are promising candidates for energy, environmental and catalytic applications, while the current synthetic methods do not allow elaborate control of local structure. Here we report a salt-assisted strategy to obtain crystalline nanocarbon from direct carbonization of metal-organic frameworks (MOFs). The crystalline product maintains a highly ordered two-dimensional (2D) stacking mode and substantially differs from the traditional weakly ordered patterns of nanoporous carbons upon high-temperature pyrolysis. The MOF-derived crystalline nanocarbon (MCC) comes with a high level of nitrogen and oxygen terminating the 2D layers and shows an impressive performance as a carbocatalyst in Fenton-like reaction for water purification. The successful preparation of MCC illustrates the possibility to discover other crystalline heteroatom-doped carbon phases starting from correctly designed organic precursors and appropriate templating reactions.
具有可定制纳米尺度结构和长程有序结构的纳米多孔碳是能源、环境和催化应用领域很有前景的候选材料，然而目前的合成方法无法对局部结构进行精细控制。在此，我们报道一种盐辅助策略，可通过金属有机框架（MOF）的直接碳化来获得结晶纳米碳。该结晶产物保持高度有序的二维（2D）堆积模式，与高温热解时纳米多孔碳传统的弱有序模式有很大不同。由MOF衍生的结晶纳米碳（MCC）在二维层的末端含有高含量的氮和氧，并在用于水净化的类芬顿反应中作为碳催化剂表现出令人印象深刻的性能。MCC的成功制备表明，从正确设计的有机前驱体和适当的模板反应出发，发现其他结晶杂原子掺杂碳相是有可能的。
