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. 2023 Apr 26;18:2225–2238. doi: 10.2147/IJN.S400467

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© 2023 Si et al.

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Physicochemical characterization of different nanoparticles. (A) The micromorphology of SiO₂@MnO_x-CeO₂ NPs, a1 and a2: HRTEM image, upper right was a further enlarged image of the Orange rectangle part, a3: SAED mode image, a4: energy dispersive X-ray energy spectrum image. (B) The micromorphology of MnO_x-CeO₂ NPs, b1 and b2: HRTEM image, upper right was a further enlarged image of the Orange rectangle part, b3: SAED mode image, b4: energy dispersive X-ray energy spectrum image. (C) The micromorphology of CeO₂ NPs, c1 and c2: HRTEM image, upper right was a further enlarged image of the Orange rectangle part, c3: SAED mode image, c4: energy dispersive X-ray energy spectrum image. (D) Infrared spectrum. (E) X-ray diffraction spectrum.