Uniformly Porous MgTi2O5 with Narrow Pore-Size Distribution: XAFS Study, Improved In Situ Synthesis, and New In Situ Surface Coating


  • We thank Dr. Tetsuo Honma and his colleagues (SPring-8/JASRI) for the support of XAFS measurement. This work was supported by Grant-in-Aid for Science Research No. 23350111 for Basic Research: Category B and Collaborative Research Project of Materials and Structure Laboratory, Tokyo Institute of Technology. Supporting Information is available from the Wiley Online Library or from the author.


Porous MgTi2O5 ceramics with pseudobrookite-type structure have been prepared by in situ processing (viz. reactive sintering). In this communication, further studies have been carried out in order to evolve the porous MgTi2O5, viz., (1) X-ray absorption fine structure (XAFS) study of porous MgTi2O5, (2) improved in situ synthesis (i.e., more precise stoichiometric control), and (3) new “in situ surface coating,” which enables in situ MgTi2O5 synthesis, in situ uniform pore formation, and in situ surface coating in only one-step heating.