fig5

Figure 5. (A) Proposed reaction mechanism for HDO of PC to P7 over 1Ru0.5Ni/H-Beta catalyst; (B) Deconvoluted XPS spectra of Ru 3p of 1Ru/H-Beta and 1Ru0.5Ni/H-Beta; (C) p-Cresol adsorbed DRIFT spectra over catalysts at 200 °C; (D) Control experiments on the conversion of BPA after catalyst passivation to investigate the role of acidic site: the catalysts were passivated with pyridine and TBP, respectively, with pyridine poisoning all active sites and TBP affecting only the surface BAS. These figures are quoted with permission from Manal et al.^[71]; (E) HDO activity and (F) product distribution as a function of the metal-acid balance (nNi/nA) over Ni/HZSM-5. These figures are quoted with permission from Liu et al.^[72]. HDO: Hydrodeoxygenation; PC: polycarbonate; XPS: X-ray photoelectron; BPA: bisphenol A; TBP: 2,6 tert-butylpyridine; BAS: brønsted acid site.