Fig. 1: Synthesis of W-TNT composite materials. | Nature Communications

Fig. 1: Synthesis of W-TNT composite materials.

From: Polymer-guided grafting of single W atoms onto titanate nanotubes increases SERS activity in semiconductors

Fig. 1

a Structural diagram of W-PEG and its adsorption on the surface of TNT via hydrogen bonding. The color scheme of the atoms in the illustration is brown (C) for carbon, red (O) for oxygen, pale pink (H) for hydrogen, and grey (W) for tungsten. Blue wavy lines are used to represent PEG. b Modeling of TNT. c Relative lengths of PEGs with different molecular weights. d Modeling of W-PEG adsorption on TNT surface. e W content of two series of W-TNT samples. f–h Using SS as a reference, SA and CS are obtained by two different strategies to regulate the loading. Source data are provided as a Source Data file.

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