In previous studies H₂PtCl₆∙6H₂O or Pt(NH₃)₄(NO₃)₂ were used to control the location of Pt nanoparticles in Zeolite/γ-Al₂O₃ composites for the synthesis of metal-acid bifunctional catalysts. Use of H₂PtCl₆∙6H₂O led to Pt nanoparticles located on the γ-Al₂O₃ binder, in a ‘nanoscale’ intimacy with zeolite acid sites being beneficial for performance in the conversion of hydrocarbons, compared to catalysts with Pt nanoparticles located in zeolite Y (‘closest’ metal-acid intimacy) obtained by use of Pt(NH₃)₄(NO₃)₂. A side effect of using H₂PtCl₆∙6H₂O was a higher NH₃ uptake in NH₃-TPD experiments, that suggested a higher acidity possibly affecting catalysis. In this study the effect of residual chlorine on Pt/Zeolite Y/γ-Al₂O₃ catalysts (0.1-0.6 wt.% Cl) was investigated by (pyridine) FTIR, NH₃-TPD and n-alkane hydro-isomerization. The coordination of chlorine to γ-Al₂O₃ was observed and led to a higher NH₃ uptake, but no effect of chlorine on the catalytic performance of the catalysts was detected.

在以前的研究ħ ₂氯铂酸₆ ∙6H ₂ O或铂（NH ₃）₄（NO ₃）₂分别用来控制铂的位置纳米颗粒在沸石/γ-Al系_2层ö ₃复合材料的金属-酸官能的合成催化剂。的H有效期₂氯铂酸₆ ∙6H ₂ O LED到位于的Pt纳米颗粒的γ-Al ₂ ö ₃与通过使用Pt（NH ₃）获得的位于沸石Y中的Pt纳米颗粒的催化剂（“最接近的”金属-酸亲密性）相比，在“纳米级”亲密性中与沸石酸位点有利于烃的转化性能。₄（NO ₃）₂。在NH ₃ -TPD实验中，使用H ₂ PtCl ₆ ∙6H ₂ O的副作用是较高的NH ₃吸收，这表明较高的酸度可能会影响催化作用。在这项研究中的余氯在Pt /沸石Y的效果/γ-Al系₂ ö _3种催化剂（0.1-0.6重量％的Cl）通过（吡啶）FTIR，NH研究₃-TPD和正构烷烃加氢异构化。氯对在γ-Al协调₂ ö ₃中观察到，并导致更高的NH ₃的吸收，但被检测到氯对催化剂的催化性能没有影响。