Zhenwei Wu

Graduate Research Assistant

Advised by Professor Jeffrey T. Miller


Professional Networks



Background

Education

Tsinghua University, B.S. Materials Science and Engineering (2014)
    Thesis: "Evolution of Cu Species in Cu-SAPO-34 Molecular Sieve Catalysts Prepared by Impregnation-Activation"
Purdue University, Ph.D. Chemical Engineering (2014 - present)

Experience

  • School of Chemical Engineering Safety Committee, Purdue University (Jun 2016 - present)
  • Ecomaterials Research Group, School of Materials Science and Engineering (Feb 2013 - Jun 2014)
  • Pacific Northwest National Laboratory, Institute for Integrated Catalysis, Research Intern (Summer 2013)

Awards

  • GAW Scholarship, Purdue University (Dec 2014)
  • Outstanding Graduate, Tsinghua University (1/79 in the school of MSE) (Jun 2014)
  • DuPont Scholarship, Tsinghua University (Oct 2013)
  • Three Star Volunteer, Tsinghua University (Oct 2012)
  • National Scholarship, Tsinghua University (1/79 in the school of MSE) (Oct 2011)

About Me

I am from Guixi, Jiangxi, a town in southern China where Longhu Mountain is located. The mountain is of historic interest and considered to be the origin of Taoism. I received my B.S. in materials science and engineering at Tsinghua University with an undergraduate thesis titled "Evolution of Cu Species in Cu-SAPO-34 Molecular Sieve Catalysts Prepared by Impregnation-Activation". I joined Purdue ChE in 2014 and became one of the first students in Professor Miller’s group. In my spare time, I enjoy playing volleyball, running and music.

Project Description

I'm studying intermetallic compound catalysts for propane dehydrogenation (PDH). PDH is a key processing step in propylene production allowing exploitation of shale gas, the fastest growing source of gas in the country. Conventional noble metal catalysts including Pt and Pd nanoparticles exhibit poor selectivity for PDH. Recently we find high dehydrogenation selectivity when Pt and Pd form intermetallic compounds with a second metal constituent. The ordered array of two different atom types over specific crystallographic sites characteristic of intermetallic compounds is in contrast to alloys where the metal atoms randomly substitute in solid solution. Now I'm investigating the structure function relationship of novel intermetallic catalysts with superior PDH performance. The catalyst contains Pt and a transitional metal and its structure is characterized by synchrotron in situ techniques including XRD, XAS and XPS available at Advanced Photon Source, Argonne National Lab. Detailed phase assemblage and core-shell geometry are obtained, which relates to the selectivity, turnover rate and chemisorption capability determined by kinetic and absorption measurements in lab.

Presentations

  • Z. Wu, E. C. Wegener, J. T. Miller, et.al. "Pd-In intermetallic alloy nanoparticles as highly selective ethane dehydrogenation catalysts", Oral Presentation at Chicago Catalysis Club Annual Symposium 2016, Chicago, IL

Publications

  • Z. Ma, Z. Wu, J. T. Miller. “Pt-Cu solid solution catalysts for propane dehydrogenation: the effect of Cu loading on active site isolation”, accepted, Catalysis, Structure & Reactivity
  • E. C. Wegener, Z. Wu, H-T. Tseng, J. R. Gallagher, Y. Ren, F. H. Ribeiro, J. T. Miller. “The effect of alloy structure on the performance of different Pt-In intermetallic catalysts for ethane dehydrogenation”, submitted
  • Z. Wu, E. C. Wegener, H-T. Tseng, J. R. Gallagher, J. W. Harris, R. E. Diaz, Y. Ren, F. H. Ribeiro, J. T. Miller. "Pd-In intermetallic alloy nanoparticles as highly selective ethane dehydrogenation catalysts", Catalysis Science and Technology, 2016, 6, 6965-6976