Modular solid phase temperature-variable electrochemical nuclear magnetic resonance combined probe rod

Abstract

The invention relates to a modular solid phase temperature-variable electrochemical nuclear magnetic resonance combined probe rod, which is equipped with a shielding shell, a radio frequency interface, an electrode interface, a seal disc, heat insulation locating sheets, heat insulation sheets, support rods, heat spacers, a circuit support rod, a probe circuit board, a temperature control sensor bracket, a sample holder, tuning rods, a coaxial line, and an electrode wire. The shielding shell is provided with four side plates and a top cover; the seal disc is a three-layer structure member, an upper heat insulation locating sheet and a lower heat insulation locating sheet are fixed on the upper surface and lower surface of the seal disc, the support rods and the heat spacers all have a modular structure, the lower end of the circuit support rod is connected to the upper end of the temperature control sensor bracket, the probe circuit board is mounted between the circuit support rod and the temperature control sensor bracket, the circuit board is equipped with a radio frequency connection interface, the temperature control sensor bracket bottom end is equipped with an inverted T-shaped platform, the sample holder is connected to the T-shaped platform, the coaxial line and the electrode wire are respectively connected to the radio frequency interface and electrode interface of the shielding shell, and pass through the seal disc to reach the probe circuit board and the sample holder.

Description

technical field [0001] The invention relates to an electrochemical nuclear magnetic resonance (Electrochemical Nuclear Magnetic Resonance, EC-NMR) coupled experimental technology, in particular to a modular solid-phase variable temperature electrochemical nuclear magnetic resonance coupled probe rod. Background technique [0002] The conventional nuclear magnetic resonance spectrometer probe is composed of a coil, a tuning matching circuit and various functional supports. The probe extends from the bottom of the magnet to the center of the magnetic field. The sample in the experiment is in a normal temperature environment. The solid-phase low-temperature EC-NMR experiment needs to place the sample in an ultra-low temperature environment as low as the temperature of liquid nitrogen, monitor the reaction process of the electrochemical system in situ, and obtain the NMR information of the intermediate or final product of the electrochemical reaction process. To reveal the elect...

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Problems solved by technology

On the other hand, in various literature reports on EC-NMR, the development of hardware is concentrated on the probe circuit or electrolytic cell used in EC-NMR, and the electrode interference static magnetic field uniformity that has an important impact on the detection signal, etc. And there is no report on the probe rod

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