TY - JOUR
T1 - Room-Temperature Quantitative Quantum Sensing of Lithium Ions with a Radical-Embedded Metal-Organic Framework
AU - Sun, Lei
AU - Yang, Luming
AU - Dou, Jin Hu
AU - Li, Jian
AU - Skorupskii, Grigorii
AU - Mardini, Michael
AU - Tan, Kong Ooi
AU - Chen, Tianyang
AU - Sun, Chenyue
AU - Oppenheim, Julius J.
AU - Griffin, Robert G.
AU - Dincǎ, Mircea
AU - Rajh, Tijana
N1 - Funding Information: This work was performed, in part, at the Center for Nanoscale Materials and used resources of Advanced Photon Source, both DOE Office of Science User Facilities, and was supported by Laboratory Directed Research and Development (LDRD) funding from Argonne National Laboratory, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract DE-AC02-06CH11357. Work in the Dincă lab was supported by the Army Research Office (Award W911NF-21-1-0124). The cRED/MicroED data were collected at the Electron Microscopy Center (EMC), Department of Materials and Environmental Chemistry (MMK) in Stockholm University with the support of the Knut and Alice Wallenberg Foundation (KAW, 2012-0112) through the 3DEM-NATUR project. Work in the Griffin lab was supported by the National Institute of General Medical Sciences (GM132997 and GM132079). We thank Dr. Walter Massefski for assistance in solid-state NMR measurements, Aimei Zhou for assistance in PXRD measurements, and Dr. Jenna L. Mancuso as well as Dr. Christopher H. Hendon for helpful discussions. Publisher Copyright: © 2022 American Chemical Society. All rights reserved.
PY - 2022/10/19
Y1 - 2022/10/19
N2 - Recent advancements in quantum sensing have sparked transformative detection technologies with high sensitivity, precision, and spatial resolution. Owing to their atomic-level tunability, molecular qubits and ensembles thereof are promising candidates for sensing chemical analytes. Here, we show quantum sensing of lithium ions in solution at room temperature with an ensemble of organic radicals integrated in a microporous metal-organic framework (MOF). The organic radicals exhibit electron spin coherence and microwave addressability at room temperature, thus behaving as qubits. The high surface area of the MOF promotes accessibility of the guest analytes to the organic qubits, enabling unambiguous identification of lithium ions and quantitative measurement of their concentration through relaxometric and hyperfine spectroscopic methods based on electron paramagnetic resonance (EPR) spectroscopy. The sensing principle presented in this work is applicable to other metal ions with nonzero nuclear spin.
AB - Recent advancements in quantum sensing have sparked transformative detection technologies with high sensitivity, precision, and spatial resolution. Owing to their atomic-level tunability, molecular qubits and ensembles thereof are promising candidates for sensing chemical analytes. Here, we show quantum sensing of lithium ions in solution at room temperature with an ensemble of organic radicals integrated in a microporous metal-organic framework (MOF). The organic radicals exhibit electron spin coherence and microwave addressability at room temperature, thus behaving as qubits. The high surface area of the MOF promotes accessibility of the guest analytes to the organic qubits, enabling unambiguous identification of lithium ions and quantitative measurement of their concentration through relaxometric and hyperfine spectroscopic methods based on electron paramagnetic resonance (EPR) spectroscopy. The sensing principle presented in this work is applicable to other metal ions with nonzero nuclear spin.
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U2 - https://doi.org/10.1021/jacs.2c07692
DO - https://doi.org/10.1021/jacs.2c07692
M3 - Article
C2 - 36201712
SN - 0002-7863
VL - 144
SP - 19008
EP - 19016
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 41
ER -