Unified mechanistic understanding of CO2 reduction to CO on transition metal and single atom catalysts

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{
  "created": "2021-09-27T12:46:36.481082+00:00", 
  "metadata": {
    "references": [
      {
        "citation": "S. Vijay, W. Ju, S. Br\u00fcckner, P. Strasser, K. Chan, Unified Mechanistic Understanding of CO2 Reduction to CO on Transition Metal and Single Atom Catalysts. ChemRxiv. Cambridge: Cambridge Open Engage (2021)", 
        "url": "https://chemrxiv.org/engage/chemrxiv/article-details/60c757994c89197e3ead4a52", 
        "comment": "Preprint associated with data.", 
        "doi": "10.26434/chemrxiv.14427986.v1", 
        "type": "Preprint"
      }
    ], 
    "mcid": "2021.156", 
    "id": "1038", 
    "is_last": true, 
    "title": "Unified mechanistic understanding of CO2 reduction to CO on transition metal and single atom catalysts", 
    "publication_date": "Sep 28, 2021, 12:09:37", 
    "edited_by": 100, 
    "_oai": {
      "id": "oai:materialscloud.org:1038"
    }, 
    "version": 1, 
    "description": "CO is the simplest product from CO2 electroreduction (CO2R), but the identity and nature of its rate limiting step remains controversial. Here we investigate the activity of both transition metals (TMs) and metal-nitrogen doped carbon catalysts (MNCs), and a present unified mechanistic picture of CO2R for both these classes of catalysts. By consideration of the electronic structure through a Newns-Andersen model, we find that on MNCs, like TMs, electron transfer to CO2 is facile, such that CO2 (g) adsorption is driven by adsorbate dipole-field interactions. Using density functional theory with explicit consideration of the interfacial field, we find CO2 * adsorption to generally be limiting on TMs, while MNCs can be limited by either CO2* adsorption or by the proton-electron transfer reaction to form COOH*. We evaluate these computed mechanisms against pH-dependent experimental activity measurements on CO2R to CO activity for Au, FeNC, and NiNC. We present a unified activity volcano that, in contrast to previous analyses, includes the decisive CO2* and COOH* binding strengths as well as the critical adsorbate dipole-field interactions. This dataset contains all DFT calculations used in this work.", 
    "status": "published", 
    "license_addendum": null, 
    "keywords": [
      "Catalysis", 
      "Electrocataylsis", 
      "Dipole-field", 
      "H2020"
    ], 
    "license": "Creative Commons Attribution 4.0 International", 
    "owner": 499, 
    "contributors": [
      {
        "affiliations": [
          "CatTheory, Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"
        ], 
        "familyname": "Vijay", 
        "givennames": "Sudarshan"
      }, 
      {
        "affiliations": [
          "Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Berlin 10623, Germany"
        ], 
        "familyname": "Ju", 
        "givennames": "Wen"
      }, 
      {
        "affiliations": [
          "Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Berlin 10623, Germany"
        ], 
        "familyname": "Br\u00fcckner", 
        "givennames": "Sven"
      }, 
      {
        "affiliations": [
          "CatTheory, Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"
        ], 
        "familyname": "Tsang", 
        "givennames": "Sze-Chun"
      }, 
      {
        "affiliations": [
          "Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Berlin 10623, Germany"
        ], 
        "familyname": "Strasser", 
        "givennames": "Peter"
      }, 
      {
        "affiliations": [
          "CatTheory, Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark"
        ], 
        "familyname": "Chan", 
        "email": "kchan@fysik.dtu.dk", 
        "givennames": "Karen"
      }
    ], 
    "conceptrecid": "1037", 
    "doi": "10.24435/materialscloud:ws-7t", 
    "_files": [
      {
        "size": 2319394412, 
        "key": "2021_Unified_NatureCatal_to_MaterialsCloud.zip", 
        "description": "Contains raw DFT calculations and AiiDA archives.", 
        "checksum": "md5:b18cabfe1a186f3391a07ee71740b518"
      }
    ]
  }, 
  "id": "1038", 
  "updated": "2021-09-28T10:09:37.492812+00:00", 
  "revision": 5
}