Monitoring Electrochemical Reactions in Situ with Low Field NMR: A Mini-Review

Gomes, Bruna Ferreira; Lobo, Carlos Manuel Silva; Colnago, Luiz Alberto

doi:10.3390/app9030498

Cited by 12 publications

(6 citation statements)

References 26 publications

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“…The second set of articles cover more fundamental aspects of the development of low field techniques including image quality improvement and memory-saving in a Permanent-Magnet-Array-Based MRI Systems by approaches of compensating the uneven point population by increasing the numbers of sampling points or rotation angles [6]. In [7], a mini-review summarizes the progress that has been achieved in the coupling between TD-NMR (using low-field spectrometers) and electrochemistry and how the challenges that this coupling poses have been overcome over the years. In [8], advances in the development of a Field Programmable Gate Array (FPGA) based spectrometers for NMR relaxation is described along with applications in NMR cryoporometry.…”

Section: Applications Of Low Field Magnetic Resonancementioning

confidence: 99%

Editorial on Special Issue “Applications of Low Field Magnetic Resonance”

Morris

Newton

2021

Applied Sciences

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Section: Applications Of Low Field Magnetic Resonancementioning

confidence: 99%

Editorial on Special Issue “Applications of Low Field Magnetic Resonance”

Morris

Newton

2021

Applied Sciences

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“…In the past few years, designing a portable device to take advantage of emerging nuclear magnetic resonance (NMR) technology has attracted the attention of many researchers [1][2][3][4][5]. However, achieving this goal requires finding optimal solutions while maintaining restrictions, such as weight, signal-to-noise ratio (SNR), magnetic field strength, and homogeneity [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

On Design Challenges of Portable Nuclear Magnetic Resonance System

Hosseinzadehtaher

D’silva

Baker

et al. 2023

JNE

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This article studies the optimal design approach for a portable nuclear magnetic resonance (NMR) system for use in non-destructive flow measurement applications. The mechanical and electromagnetic design procedures were carried out using the Ansys Maxwell finite-element analysis (FEA) software tool. The proposed procedure considered homogeneity and strength constraints while ensuring the desired functionality of the intended device for a given application. A modified particle swarm optimization (MPSO) algorithm was proposed as a reference design framework for optimization stages. The optimally designed NMR tool was prototyped, and its functionality was validated via several case studies. To assess the functionality of the prototyped device, Larmor frequency for hydrogen atom was captured and compared with theoretical results. Furthermore, the functionality and accuracy of the prototyped NMR tool is compared to the off-the-shelf NMR tool. Results demonstrated the feasibility and accuracy of the prototyped NMR tool constrained by factors, such as being lightweight and compact.

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“…To conclude the introduction, in the present work, we focus on the investigation of photoreactions in the mixture of anthracenes. To do this, we employ 1 H NMR spectroscopy, which is being more and more often employed in the field of photochemistry and reaction monitoring [43][44][45][46][47]. We demonstrate that a simple NMR approach can easily deliver data which enables us to obtain insights into the kinetics of the photoreactivity between varying anthracenes.…”

Section: Introductionmentioning

confidence: 99%

Photoreactivity of an Exemplary Anthracene Mixture Revealed by NMR Studies, including a Kinetic Approach

et al. 2021

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Anthracenes are an important class of acenes. They are being utilized more and more often in chemistry and materials sciences, due to their unique rigid molecular structure and photoreactivity. In particular, photodimerization can be harnessed for the fabrication of novel photoresponsive materials. Photodimerization between the same anthracenes have been investigated and utilized in various fields, while reactions between varying anthracenes have barely been investigated. Here, Nuclear Magnetic Resonance (NMR) spectroscopy is employed for the investigation of the photodimerization of two exemplary anthracenes: anthracene (A) and 9-bromoanthracene (B), in the solutions with only A or B, and in the mixture of A and B. Estimated k values, derived from the presented kinetic model, showed that the dimerization of A was 10 times faster in comparison with B when compounds were investigated in separate samples, and 2 times faster when compounds were prepared in the mixture. Notably, the photoreaction in the mixture, apart from AA and BB, additionally yielded a large amount of the AB mixdimer. Another important advantage of investigating a mixture with different anthracenes is the ability to estimate the relative reactivity for all the reactions under the same experimental conditions. This results in a better understanding of the photodimerization processes. Thus, the rational photofabrication of mix-anthracene-based materials can be facilitated, which is of crucial importance in the field of polymer and material sciences.

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Monitoring Electrochemical Reactions in Situ with Low Field NMR: A Mini-Review

Cited by 12 publications

References 26 publications

Editorial on Special Issue “Applications of Low Field Magnetic Resonance”

Editorial on Special Issue “Applications of Low Field Magnetic Resonance”

On Design Challenges of Portable Nuclear Magnetic Resonance System

Photoreactivity of an Exemplary Anthracene Mixture Revealed by NMR Studies, including a Kinetic Approach

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