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In-situ loading syn...
In-situ loading synthesis of graphene supported PtCu nanocube and its high activity and stability for methanol oxidation reaction
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- Yang, Yi (författare)
- KTH,Tillämpad fysikalisk kemi,China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China
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- Guo, Yi-Fei (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Fu, Ce (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Zhang, Rong-Hua (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Zhan, Wei (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Wang, Pan (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Zhang, Xin (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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- Wang, Qi (författare)
- Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Key Lab Photovolta & Energy Conversat Mat, Hefei 230031, Peoples R China.
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- Zhou, Xin-Wen (författare)
- China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China.
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
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Ingår i: Journal of Colloid and Interface Science. - : Elsevier BV. - 0021-9797 .- 1095-7103. ; 595, s. 107-117
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A perfect PtCu nanocube with partial hollow structure was prepared by hydrothermal reaction and its electrocatalytic methanol oxidation reaction (MOR) was studied. The appropriate concentration of shape-control additives KI and triblock pluronic copolymers, poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO19-PPO69-PEO19) (P123) play crucial roles in the final product morphology. The PtCu nanocubes can be perfectly in situ immobilizedonto graphene under the action of P123 while the structure and cubic morphologyremain unchanged. The electrochemical tests suggest that the obtained PtCu nanocube (PtCu-NCb) exhibits better MOR activity and stability than PtCu hexagon nanosheet (PtCu-NSt), PtCu nanoellipsoid (PtCu-NEs) and commercial Pt/C in alkaline medium. When in situ immobilized onto graphene, the MOR catalytic activity and stability of PtCu cubes are further improved. The markedly enhanced electrocatalytic activity and durability maybe attributed to the special cubic morphology with partial hollow structure enclosed by highly efficient facet and the probably the synergistic effect of PtCu and intermediate state CuI decorated on the surface and graphene.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Morphology maintain
- PtCu nanocubes
- CuI
- Methanol oxidation reaction
- In situ loading
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- art (ämneskategori)
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