Abstract: Disclosed herein are mixed oxide compositions comprising zirconium and cerium having a surprisingly small particle sizes. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more other rare earths other than cerium and yttrium. The compositions exhibit a particle size characterized by a D90 value of about 5 um to about 25 ?m and a D99 value of about 5 ?m to about 50 ?m. Further disclosed are processes of producing these compositions using oxalic acid and an alcohol and heating in the process. The compositions can be used as a catalyst and/or part of an automobile exhaust system.

Abstract: Disclosed herein are catalyst compositions having improved mercury intrusion volume and surface areas and processes for making these compositions. The enhanced compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more rare earths other than cerium and yttrium. Further disclosed are processes of producing these compositions involving supercritical drying after addition of mesitylene. The compositions can be used as a catalyst and/or as part of a catalyst system in an automobile exhaust system.

Abstract: Disclosed herein are compositions containing zirconium and cerium having a surprisingly small particle size. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more other rare earth oxides other than cerium and yttrium. The compositions exhibit a particle size characterized by a D90 value of about 5 ?m to about 30 ?m and a D99 value of about 5 um to about 40 um. Further disclosed are processes of producing these compositions using oxalic acid and supercritical drying in the process. The compositions can be used as a catalyst and/or part of a catalytic system. The composition is prepared by co-precipitation using oxalic acid and supercritical drying.

Abstract: Disclosed herein are compositions comprising zirconium and cerium having a surprisingly small particle sizes. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more rare earths other than cerium and yttrium The compositions exhibit a particle size characterized by a Dso value of about 20 ?m to about 45 ?m and a D99 value of about 55 ?m to about 1 00 ?m. Further disclosed are processes of producing these compositions using oxalic acid in the process. The compositions can be used as a catalyst and/or part of a catalytic system for automobile exhaust gas.

Abstract: A system, method, and apparatus are provided for promoting achievement of a goal within a professional community, such as an online professional network. A member is selected as a candidate for assistance based on her level of usage of the community and/or other factors, and a goal of the member may be learned explicitly or implicitly. Based on her goal and her level of proficiency within the community, which may be determined based on the number of discrete tasks or metrics she has accomplished, a set of milestones is suggest to her. The milestones are both related to the member's goal and customized to her level of proficiency. Upon completion of the milestones, she may be given a reward that is related to the goal.