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@ARTICLE{An:858791,
      author       = {An, Jinghua and Wang, Yehong and Lu, Jianmin and Zhang,
                      Jian and Zhang, Zhixin and Xu, Shutao and Liu, Xiaoyan and
                      Zhang, Tao and Gocyla, Martin and Heggen, Marc and
                      Dunin-Borkowski, Rafal and Fornasiero, Paolo and Wang, Feng},
      title        = {{A}cid-{P}romoter-{F}ree {E}thylene {M}ethoxycarbonylation
                      over {R}u-{C}lusters/{C}eria: {T}he {C}atalysis of
                      {I}nterfacial {L}ewis {A}cid–{B}ase {P}air},
      journal      = {Journal of the American Chemical Society},
      volume       = {140},
      number       = {11},
      issn         = {1520-5126},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2018-07631},
      pages        = {4172 - 4181},
      year         = {2018},
      abstract     = {The interface of metal-oxide plays pivotal roles in
                      catalytic reactions, but its catalytic function is still not
                      clear. In this study, we report the high activity of
                      nanostructured Ru/ceria (Ru-clusters/ceria) in the ethylene
                      methoxycarbonylation (EMC) reaction in the absence of acid
                      promoter. The catalyst offers $92\%$ yield of MP with TOF of
                      8666 h–1, which is about 2.5 times of homogeneous Pd
                      catalyst (∼3500 h–1). The interfacial Lewis acid–base
                      pair [Ru-O-Ce-Vö], which consists of acidic Ce-Vö (oxygen
                      vacancy) site and basic interfacial oxygen of Ru-O-Ce
                      linkage, acts as active site for the dissociation of
                      methanol and the subsequent transfer of hydrogen to the
                      activated ethylene, which is the key step in
                      acid-promoter-free EMC reaction. The combination of 1H MAS
                      NMR, pyridine-IR and DFT calculations reveals the hydrogen
                      species derived from methanol contains Brönsted acidity.
                      The EMC reaction mechanism under acid-promoter-free
                      condition over Ru-clusters/ceria catalyst is discussed.},
      cin          = {PGI-5},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29482317},
      UT           = {WOS:000428356000049},
      doi          = {10.1021/jacs.8b01742},
      url          = {https://juser.fz-juelich.de/record/858791},
}