On-Surface Synthesis of Nitrogen-Substituted Gold-Phosphorus Porous Network,Chemistry of Materials

当前位置： X-MOL 学术 › Chem. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

On-Surface Synthesis of Nitrogen-Substituted Gold-Phosphorus Porous Network
Chemistry of Materials ( IF 7.2 ) Pub Date : 2020-09-08 , DOI: 10.1021/acs.chemmater.0c02889
Jia Lin Zhang _{1,

2} , Songtao Zhao ₃ , Shuo Sun _{1,

2} , Xu Lian ₁ , Anton Tadich ₄ , Dong-Chen Qi ₅ , Chengding Gu ₁ , Zhirui Ma ₁ , Zhenyu Li ₆ , Wei Chen _{1,

2,

7,

8}

Affiliation

Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore
Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland 4001, Australia
Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China
Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Jiangsu 215123, China

Porous metal–organic frameworks (MOFs) have become one of the fastest growing fields with broad applications due to the presence of various active sites (e.g., cavities, metal nodes, and organic linkers). Notably, an on-surface synthesis represents a facile method for the fabrication of two-dimensional (2D) MOFs, where the substrate not only supports and dictates the symmetry of the surface nanostructures but also provides the metal atoms to form the metal nodes. However, the realization of on-surface synthesized 2D metal–inorganic porous networks is rarely explored, except for a recently reported gold-phosphorus network. Here, we integrate one more dimension into the growth process (activated gas phase atoms) and demonstrate the on-surface synthesis of ternary metal–inorganic gold-phosphorus-nitrogen porous networks on Au(111). The atomic structure is precisely identified through a combination of low-temperature scanning tunneling microscopy, density functional theory calculations, and X-ray photoelectron spectroscopy. Using the thermal energy from the heated Au(111) substrate, the phosphorus precursor can simultaneously grab gold atoms from the surface and nitrogen atoms from activated nitrogen gas to build up a long-range ordered 2D surface porous structure. Our study opens a completely new platform for the on-surface synthesis of tailored metal–inorganic frameworks.

中文翻译：

氮取代的金磷多孔网络的表面合成

多孔金属-有机骨架（MOF）由于存在各种活性部位（例如，空腔，金属节点和有机连接基）而已成为具有广泛应用的增长最快的领域之一。值得注意的是，表面合成代表了一种用于制造二维（2D）MOF的简便方法，其中衬底不仅支撑和支配表面纳米结构的对称性，而且还提供金属原子以形成金属节点。然而，除了最近报道的金-磷网络以外，很少探索表面合成的2D金属-无机多孔网络的实现。在这里，我们将一个维度集成到生长过程中（活化的气相原子），并证明了Au（111）上三元金属-无机金-磷-氮多孔网络的表面合成。通过结合低温扫描隧道显微镜，密度泛函理论计算和X射线光电子能谱，可以精确地识别原子结构。利用来自加热的Au（111）基板的热能，磷前体可以同时从表面捕获金原子和从活化氮气中捕获氮原子，从而建立长程有序2D表面多孔结构。我们的研究为定制的金属-无机骨架的表面合成打开了一个全新的平台。磷前体可以同时从表面捕获金原子和从活化氮气中捕获氮原子，以建立长程有序二维表面多孔结构。我们的研究为定制的金属-无机骨架的表面合成打开了一个全新的平台。磷前体可以同时从表面捕获金原子和从活化氮气中捕获氮原子，以建立长程有序二维表面多孔结构。我们的研究为定制的金属-无机骨架的表面合成打开了一个全新的平台。

更新日期：2020-10-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11