The role of phosphate functionalization on the oxygen evolution reaction activity of cobalt-based oxides at different pH values

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{
  "metadata": {
    "is_last": true, 
    "version": 1, 
    "title": "The role of phosphate functionalization on the oxygen evolution reaction activity of cobalt-based oxides at different pH values", 
    "keywords": [
      "alkaline water electrolysis", 
      "phosphate ion functionalization", 
      "neutral ph", 
      "Experimental"
    ], 
    "description": "Cobalt-based oxides are active electrocatalysts for the oxygen evolution reaction (OER) in alkaline electrolytes. However, their OER activity at near-neutral pHs is generally low and more active OER catalysts at neutral pHs are desired for practical applications. Herein, La<sub>0.2</sub>Sr<sub>0.8</sub>CoO<sub>3\u2013\u03b4</sub>, La<sub>0.2</sub>Sr<sub>0.8</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3\u2013\u03b4</sub>, La<sub>0.5</sub>Sr<sub>1.5</sub>CoO<sub>4\u2013\u03b4</sub> and CoO<sub>x</sub> catalysts were prepared by the flame spray synthesis method and their surface was functionalized by a dry phosphate incorporation process. Small amount of P was incorporated on the surface of the catalyst (in the range of ppm). All the samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and soft and hard X-ray absorption spectroscopy (XAS) before and after the functionalization process. The electrocatalytic activity towards OER of the different nanoparticle catalysts was investigated in electrolytes with different pH values (pH = 7, 12.5, 13, and 13.5).", 
    "license": "Creative Commons Attribution 4.0 International", 
    "references": [
      {
        "citation": "W. Yoshimune, J. B. Falqueto, A. H. Clark, N. S. Y\u00fczbasi, T. Graule, D. Baster, M. El Kazzi, T. J. Schmidt, E. Fabbri \"(submitted)\"", 
        "type": "Journal reference"
      }
    ], 
    "doi": "10.24435/materialscloud:gh-w0", 
    "conceptrecid": "1651", 
    "publication_date": "Feb 13, 2023, 16:44:49", 
    "edited_by": 576, 
    "_oai": {
      "id": "oai:materialscloud.org:1652"
    }, 
    "contributors": [
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "Yoshimune", 
        "givennames": "Wataru"
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "B. Falqueto", 
        "givennames": "Juliana"
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "Clark", 
        "givennames": "Adam H."
      }, 
      {
        "affiliations": [
          "Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 D\u00fcbendorf, Switzerland"
        ], 
        "familyname": "Y\u00fczbasi", 
        "givennames": "Nur Sena"
      }, 
      {
        "affiliations": [
          "Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 D\u00fcbendorf, Switzerland"
        ], 
        "familyname": "Graule", 
        "givennames": "Thomas"
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "Baster", 
        "givennames": "Dominika"
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "El Kazzi", 
        "givennames": "Mario"
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "familyname": "Schmidt", 
        "givennames": "Thomas J."
      }, 
      {
        "affiliations": [
          "Energy and Environment Research Division, Paul Scherrer Institut (PSI), CH-5232 Villigen PSI, Switzerland"
        ], 
        "email": "emiliana.fabbri@psi.ch", 
        "familyname": "Fabbri", 
        "givennames": "Emiliana"
      }
    ], 
    "owner": 947, 
    "license_addendum": null, 
    "mcid": "2023.26", 
    "_files": [
      {
        "size": 5083012, 
        "checksum": "md5:ac1dba06e9004d5e42dae8f51e547cb8", 
        "description": "The folder contains the raw data related to XRD, hard XAS, soft XAS (sXAS), and XPS characterizations of the samples. In addition, electrochemical cyclic voltammetry (CVs) and Tafel plots are included.", 
        "key": "raw data.csv"
      }
    ], 
    "id": "1652", 
    "status": "published"
  }, 
  "revision": 6, 
  "updated": "2023-02-13T15:44:49.032332+00:00", 
  "created": "2023-02-13T11:37:41.233063+00:00", 
  "id": "1652"
}