WOW - TYVM - Incredible Resource ....
Listing of both 'free' and 'pay' resources ... quick jump ...
Chemistry - General -
Sorption of divalent metal ions from aqueous solution by oxidized carbon nanotubes and nanocages: A review
http://amlett.org/uploads/2047895157.pdf
FREE ACCESS -
Stuff like this has price tags of $75+ from other 'resources'.
Mucho obligado,senor.

Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good ...