Fig. 1From: Porous Carbon Substrate Improving the Sensing Performance of Copper Nanoparticles Toward Glucosea Schematic illustration of preparation of samples of Cu NP@PC and Cu NP/C; b The X-ray diffraction (XRD) pattern of Cu NP@PC and Cu NP/C; c Raman spectra of Cu NP@PC and Cu NP/C; and d FTIR spectra of Cu NP@PC and Cu NP/CBack to article page