首页|Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO2

Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO2

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The main problem faced by ethanol oxidation reaction(EOR)includes low activity,poor selectivity,and durability.In the study,we found that polysulfide modified on the surface of PtCu intermetallic(IM)/C can simultaneously enrich hydroxyl and ethanol,which could effectively improve the catalytic activity,CO2 selectivity,and durability of catalyst.The mass activity and the specific activity of the product in 1 M KOH electrolyte reached 17.83 A·mgPt-1 and 24.67 mA·cm-2.The CO2 selectivity of polysulfide modified product achieved 93.5％,which was 30 folds higher than Pt/C.In addition,the catalyst showed high catalytic stability.The mechanism study demonstrates that the surface modified polysulfide could significantly boost the enrichment effect of ethanol and hydroxyl species,accelerating C-C bond cleavage and CO oxidation.

PtCO2 selectivityenrichment effectethanol oxidation reaction(EOR)electrocatalyst

Shuanglong Zhou、Zheng Lv、Liang Zhao、Dan Zhang、Zuocao Wang、Yu Dai、Bin Li、Olga Starostenko、Jianping Lai、Lei Wang

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Key Laboratory of Eco-chemical Engineering,Ministry of Education,Taishan scholar advantage and characteristic discipline team ofEco-chemical process and technology,Laboratory of Inorganic Synthesis and Applied Chemistry,College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China

College of Foreign Languages,Qingdao City University,Qingdao 266106,China

College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China

Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine,Kyiv 02160,Ukraine

Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection,College of Environment and Safety Engineering,Qingdao University of Science and Technol

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaYouth Innovation and Technology Foundation of Shandong Higher Education Institutions,ChinaOutstanding Youth Foundation of Shandong Province,ChinaTaishan Scholar Young Talent ProgramTaishan Scholar Young Talent ProgramNatural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong ProvinceMajor Scientific and Technological Innovation ProjectMajor Basic Research Program of Natural Science Foundation of Shandong ProvinceNational Natural Science Foundation of China

2200114321971132520721972019KJC004ZR2019JQ14tsqn201909114tsqn201909123ZR2020YQ34ZR2019MB0422019JZZY020405ZR2020ZD0922002083

2024

10.1007/s12274-023-6043-x

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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