How can we tune the viscosity for better adhesion on cardiolite substrate?
The particle size D90 12micron and pH is acidic (3-5). catalyst slurry is Pd/Al2O3 with about 40% solid content.
How can we improve the adhesion of mixed oxide slurry?
you mean cordierite substrate? If your system is Pd/Al2O3/Monolith, I think it would be better if you prepare using the procedure as follow:
Deposit of Al2O3 on monolith, after that, impregnation of Pd over alumina-monolith.
With this procedure, you could have better Pd dispersion and this procedure could be easier and more reasonable.
Best regards,
You mean post dipping of Pd-N solution. Then it is difficult to control the Pd loading !!
YES, it might be difficult to control Pd loading but your Pd will be easily present at the surface than your actual method. That's the key point, the precious metal must be present at the surface to favours the contact with reactants. By this way, you can minimise the Pd loading on your catalyst.
By the way, you cannot control the Pd loading but you can determine the Pd loading on your material.
We prepared the Pt/Bao/Al2O3/cordierite before by this pathway in a project with industrial partner (automobile constructor)
Best regards,
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