Research / 2019 / Article / Fig 2

Research Article

Highly Efficient and Stable Hydrogen Production in All pH Range by Two-Dimensional Structured Metal-Doped Tungsten Semicarbides

Figure 2

XRD analyses of various doping contents in M-W2C NSs. (a) XRD patterns and (b, c) magnified XRD patterns of W2C and W2C with various Ni (at) doping contents. (d) Magnified XRD patterns of W2C and W2C with various Ni (at) doping contents using Cu as internal standard. (e, f) The plots of lattice parameters a and c versus Ni (at) doping content measured by ICP-OES. (g) The plot of unit cell volume of W2C versus Ni (at) doping content measured by ICP-OES.