Enhanced catalytic performance towards CO oxidation of broccoli-like Ceria microsphere by dilute Ga doping

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{
  "revision": 7, 
  "id": "2464", 
  "created": "2024-12-06T15:15:18.055217+00:00", 
  "metadata": {
    "doi": "10.24435/materialscloud:65-yc", 
    "status": "published", 
    "title": "Enhanced catalytic performance towards CO oxidation of broccoli-like Ceria microsphere by dilute Ga doping", 
    "mcid": "2024.192", 
    "license_addendum": null, 
    "_files": [
      {
        "description": "Raw files including the SEM, XRD, BET, Raman, XPS, DFT and CO oxidation data that support the study for this paper", 
        "key": "Raw Data.zip", 
        "size": 6535792, 
        "checksum": "md5:94a3697853ead28ea9068124acedb620"
      }, 
      {
        "description": "Description file", 
        "key": "Readme.txt", 
        "size": 325, 
        "checksum": "md5:4e69aed432514995661198e7c07f6ff6"
      }
    ], 
    "owner": 1585, 
    "_oai": {
      "id": "oai:materialscloud.org:2464"
    }, 
    "keywords": [
      "Ceria microspheres", 
      "Gallium doping", 
      "Oxygen vacancy", 
      "CO oxidation", 
      "Hydrothermal synthesis", 
      "Catalytic enhancement"
    ], 
    "conceptrecid": "2463", 
    "is_last": true, 
    "references": [
      {
        "type": "Journal reference", 
        "citation": "In preparation"
      }
    ], 
    "publication_date": "Dec 09, 2024, 07:39:52", 
    "license": "Creative Commons Attribution 4.0 International", 
    "id": "2464", 
    "description": "The process of catalytically oxidizing carbon monoxide (CO) remains a critical issue across various industrial sectors. However, it continues to be a challenge to achieve effective CO oxidation at low temperatures using non-noble metal catalysts. This study addresses these gaps by investigating the effects of dilute gallium (Ga) doping on the catalytic performance of flower-like ceria (CeO\u2082) microspheres. By using a modified hydrothermal synthesis method, we prepared the Ga-doped CeO\u2082 microspheres and characterized their morphology, surface area, and evidence of oxygen vacancy through various experimental techniques as well as computational simulation method. Our findings disclosed that the incorporation of Ga significantly enhances the catalytic performance of CeO\u2082, with the optimal doping level (2 mol% Ga) achieving a 90% CO conversion temperature (T90) of 388.9 \u00b0C, obviously lower than that of pristine CeO\u2082 (488.5 \u00b0C). This work demonstrates that dilute Ga doping effectively improves the catalytic properties of CeO\u2082-based materials, offering a potential strategy for developing effective CO oxidation catalysts.", 
    "version": 1, 
    "contributors": [
      {
        "affiliations": [
          "The Research and Development Center of Guangzhou Automobile Group Co. Ltd. (GAC R&D Center), Guangzhou, 511434, PR China"
        ], 
        "familyname": "Zhang", 
        "givennames": "Minai"
      }, 
      {
        "affiliations": [
          "Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511466, China"
        ], 
        "familyname": "Xue", 
        "givennames": "Jierui"
      }, 
      {
        "affiliations": [
          "Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511466, China"
        ], 
        "familyname": "Han", 
        "givennames": "Zhuolun"
      }, 
      {
        "affiliations": [
          "Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511466, China"
        ], 
        "familyname": "Wang", 
        "givennames": "Yan"
      }, 
      {
        "email": "yguan305@connect.hkust-gz.edu.cn", 
        "affiliations": [
          "Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511466, China"
        ], 
        "familyname": "Guan", 
        "givennames": "Yizhang"
      }, 
      {
        "email": "cheekeongtan@ust.hk", 
        "affiliations": [
          "Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511466, China", 
          "Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China", 
          "Guangzhou Municipal Key Laboratory of Materials Informatics, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511453, Guangdong, China", 
          "Guangzhou Municipal Key Laboratory of Integrated Circuits Design, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511453, Guangdong, China"
        ], 
        "familyname": "Tan", 
        "givennames": "Chee-Keong"
      }
    ], 
    "edited_by": 576
  }, 
  "updated": "2024-12-09T06:39:52.323192+00:00"
}