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Shanghai Nateng Instrument Co., Ltd
Room 707, Aiqian Building, 599 Lingling Road, Xuhui District, Shanghai, China
Fourier transform infrared spectroscopy(Fourier Transform infrared spectroscopy, FTIR)Widely used in various chemical analyses, especially in the analysis of polymers and organic compounds, it provides important analytical tools for modern chemistry. However, due to the limitations of optical diffraction limits, the spatial resolution of conventional Fourier transform infrared spectrometers is increasingly unable to meet the needs of researchers for chemical analysis and component identification of samples at the nanoscale. In this context, the United StatesMolecular VistaAs a result, a new generation was launchedNano infraredImaging and Spectroscopy SystemVista-IR!

Vista-IRNanoinfrared relies on the atomic force microscope platform and utilizes specializedLight induced force microscope(Photo-induced Force Microscope, PiFM)Technology, combined with wavelength adjustable infrared light sources, to achieve10nmThe following spatial resolutionsinfraredImaging and spectral acquisition, without the need for far-field optical receivers and interferometers.

The PiFM infrared spectrum collected by Vista-IR nanoinfrared is highly consistent with the standard FTIR spectrum, which allows researchers to compare and analyze the PiFM nanoinfrared spectrum with the data in the FTIR infrared spectrum library.

NanoIR Nanoinfrared Imaging and Spectroscopy Case Study Breakthrough use of light induced force microscopy to detect the interaction between probes and samplesDipole interaction(dipole interaction), Protect it from the negative impact of lateral thermal expansion of the sample on spatial resolution. Therefore,The true realization of spatially resolved nanoinfrared imaging below 10nm based on light induced force microscopy!The example of nanoscale infrared imaging and spectroscopy of PS-PMMA block copolymer is shown below, with red and green representing the distribution of PMMA and PS, respectively.
Nano infrared based on light induced force microscopy is not only suitable forpolymer materials, also suitable forInorganic materialsThe following figure shows the nano infrared skeleton vibration peaks of ZSM-5 zeolite molecular sieves with different Si/Al ratios1100cm-1The blue shift and splitting situation at the location, as well as the presence of hydrocarbons at 1480cm-1The C=C stretching vibration peak is used to reflect the participation of ZSM-5Methanol to hydrocarbons (MTH)The distribution of coking after catalytic reaction.
