fig3

The transfer hydrogenation of levulinic acid to γ-valerolactone over CuNiAl catalyst

Figure 3. (A) XPS spectra of Cu 2p for CuAl and CuNiAl; (B) XPS spectra of Ni 2p for NiAl, and CuNiAl. XPS: X-ray photoelectron spectroscopy.

Chemical Synthesis
ISSN 2769-5247 (Online)

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