free journal papers to download
http://worldwidescience.org/topicpages/c/carbon+dioxide+adsorption.html# http://highwire.stanford.edu/lists/freeart.dtl (free ournal papers from Stanford university) https://royalsociety.org/journals/free-content/ http://learn-one-thing-a-day.blogspot.in/2012/11/where-to-get-research-papers-for-free.html