Sijie Xie, Xiaoyu Tan*, Xuan Zhang* and Jan Fransaer*,
{"title":"探测基体上MOF成核的关键金属节点和配体浓度","authors":"Sijie Xie, Xiaoyu Tan*, Xuan Zhang* and Jan Fransaer*, ","doi":"10.1021/acsmaterialslett.5c0036110.1021/acsmaterialslett.5c00361","DOIUrl":null,"url":null,"abstract":"<p >Determining the critical concentrations of metal nodes and ligands required for metal–organic framework (MOF) nucleation on a substrate remains a fundamental challenge. Here we propose an electrochemical method to address this issue by integrating in situ surface mass change analysis with in situ surface pH measurement during a cathodic deposition process. Taking UTSA-280 ([Ca(C<sub>4</sub>O<sub>4</sub>)]<sub>n</sub>) as an example, the critical metal ion (c(Ca<sup>2+</sup>)) and deprotonated ligand (c(C<sub>4</sub>O<sub>4</sub><sup>2–</sup>)) concentrations for UTSA-280 nucleation on a gold substrate are determined. It is found that the values of c(Ca<sup>2+</sup>) × c(C<sub>4</sub>O<sub>4</sub><sup>2–</sup>) in different electrolytes with varied bulk Ca<sup>2+</sup> concentrations are similar, which can be seen as an analogue of the solubility product of UTSA-280 considering its chemical formula. Also, a simple yet previously overlooked strategy to shorten the incubation time for MOF nucleation in cathodic deposition is proposed and verified. The presented method can be applied to other MOFs.</p>","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 4","pages":"1526–1532 1526–1532"},"PeriodicalIF":9.6000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Probing the Critical Metal Node and Ligand Concentrations for MOF Nucleation on a Substrate\",\"authors\":\"Sijie Xie, Xiaoyu Tan*, Xuan Zhang* and Jan Fransaer*, \",\"doi\":\"10.1021/acsmaterialslett.5c0036110.1021/acsmaterialslett.5c00361\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Determining the critical concentrations of metal nodes and ligands required for metal–organic framework (MOF) nucleation on a substrate remains a fundamental challenge. Here we propose an electrochemical method to address this issue by integrating in situ surface mass change analysis with in situ surface pH measurement during a cathodic deposition process. Taking UTSA-280 ([Ca(C<sub>4</sub>O<sub>4</sub>)]<sub>n</sub>) as an example, the critical metal ion (c(Ca<sup>2+</sup>)) and deprotonated ligand (c(C<sub>4</sub>O<sub>4</sub><sup>2–</sup>)) concentrations for UTSA-280 nucleation on a gold substrate are determined. It is found that the values of c(Ca<sup>2+</sup>) × c(C<sub>4</sub>O<sub>4</sub><sup>2–</sup>) in different electrolytes with varied bulk Ca<sup>2+</sup> concentrations are similar, which can be seen as an analogue of the solubility product of UTSA-280 considering its chemical formula. Also, a simple yet previously overlooked strategy to shorten the incubation time for MOF nucleation in cathodic deposition is proposed and verified. The presented method can be applied to other MOFs.</p>\",\"PeriodicalId\":19,\"journal\":{\"name\":\"ACS Materials Letters\",\"volume\":\"7 4\",\"pages\":\"1526–1532 1526–1532\"},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2025-03-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Materials Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsmaterialslett.5c00361\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.5c00361","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Probing the Critical Metal Node and Ligand Concentrations for MOF Nucleation on a Substrate
Determining the critical concentrations of metal nodes and ligands required for metal–organic framework (MOF) nucleation on a substrate remains a fundamental challenge. Here we propose an electrochemical method to address this issue by integrating in situ surface mass change analysis with in situ surface pH measurement during a cathodic deposition process. Taking UTSA-280 ([Ca(C4O4)]n) as an example, the critical metal ion (c(Ca2+)) and deprotonated ligand (c(C4O42–)) concentrations for UTSA-280 nucleation on a gold substrate are determined. It is found that the values of c(Ca2+) × c(C4O42–) in different electrolytes with varied bulk Ca2+ concentrations are similar, which can be seen as an analogue of the solubility product of UTSA-280 considering its chemical formula. Also, a simple yet previously overlooked strategy to shorten the incubation time for MOF nucleation in cathodic deposition is proposed and verified. The presented method can be applied to other MOFs.
期刊介绍：
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
