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DOI10.1126/science.aaz4304
Sequencing of metals in multivariate metal-organic frameworks
Ji Z.; Li T.; Yaghi O.M.
发表日期2020
ISSN0036-8075
起始页码674
结束页码680
卷号369期号:6504
英文摘要We mapped the metal sequences within crystals of metal-oxide rods in multivariate metal-organic framework-74 containing mixed combinations of cobalt (Co), cadmium (Cd), lead (Pb), and manganese (Mn). Atom probe tomography of these crystals revealed the presence of heterogeneous spatial sequences of metal ions that we describe, depending on the metal and synthesis temperature used, as random (Co, Cd, 120°C), short duplicates (Co, Cd, 85°C), long duplicates (Co, Pb, 85°C), and insertions (Co, Mn, 85°C). Three crystals were examined for each sequence type, and the molar fraction of Co among all 12 samples was observed to vary from 0.4 to 0.9, without changing the sequence type. Compared with metal oxides, metal-organic frameworks have high tolerance for coexistence of different metal sizes in their rods and therefore assume various metal sequences. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词cadmium; cobalt; lead; manganese; metal organic framework; crystal structure; detection method; heavy metal; multivariate analysis; probe; temperature effect; analytic method; Article; atom probe tomography; catalysis; energy dispersive X ray spectroscopy; entropy; inductively coupled plasma atomic emission spectrometry; measurement accuracy; nuclear magnetic resonance; pairwise multicomponent short range order; priority journal; scanning electron microscopy; sequence analysis; synthesis; temperature measurement; tomography; X ray crystallography; X ray powder diffraction
语种英语
来源期刊Science
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/244173
作者单位Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, United States; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Kavli Energy NanoSciences Institute at Berkeley, Berkeley, CA 94720, United States; Berkeley Global Science Institute, Berkeley, CA 94720, United States; Institute for Materials, Ruhr-Universität Bochum, Universitätsstraße 150, Bochum, 44801, Germany; University of California, Berkeley-King Abdulaziz City for Science and Technology (KACST), Joint Center of Excellence for Nanomaterials for Clean Energy Applications, KACST, Riyadh, 11442, Saudi Arabia
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Ji Z.,Li T.,Yaghi O.M.. Sequencing of metals in multivariate metal-organic frameworks[J],2020,369(6504).
APA Ji Z.,Li T.,&Yaghi O.M..(2020).Sequencing of metals in multivariate metal-organic frameworks.Science,369(6504).
MLA Ji Z.,et al."Sequencing of metals in multivariate metal-organic frameworks".Science 369.6504(2020).
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