Journal of Catalysis, Applied Catalysis B – Environmental and Catalysis Today rank respectively 2nd, 3rd and 4th in the ISI Category: Engineering, Chemical.

	Journal Of Catalysis
	2008 Impact Factor WAS 5.167 2009 Impact Factor NOW 5.288

	Applied Catalysis B-Environmental
	2008 Impact Factor WAS 4.853 2009 Impact Factor NOW 5.252

	Journal Of Hazardous Materials
	2008 Impact Factor WAS 2.975 2009 Impact Factor NOW 4.144

	Applied Catalysis A-General
	2008 Impact Factor WAS 3.190 2009 Impact Factor NOW 3.564

	Catalysis Today
	2008 Impact Factor WAS 3.004 2009 Impact Factor NOW 3.526

Listed by highest Impact Factor

About Journal Performance Measurements
In recent years there has been an increased proliferation of academic periodicals. As more journals enter the scientific publishing realm, there is a greater need to discern between these journals and differentiate them. Journal performance measurements offer a systematic, objective means to critically evaluate journals, and several indicators are available, such as IFs, EigenFactor, SNIP, SJR journal ranking, etc. For more information on IFs and other journal performance measurements visit the website about Journal Performance Measurements.