Alkoxide-intercalated NiFe-layered double hydroxides magnetic nanosheets as efficient water oxidation electrocatalysts

被引：57

作者：

Carrasco, Jose A. ^{[1
]}

Romero, Jorge ^{[1
]}

Varela, Maria ^{[2
,3
]}

Hauke, Frank ^{[4
,5
,6
]}

Abellan, Gonzalo ^{[1
,4
,5
,6
]}

Hirsch, Andreas ^{[4
,5
,6
]}

Coronado, Eugenio ^{[1
]}

机构：

[1] Univ Valencia, Inst Ciencia Mol ICMol, Catedrat Jose Beltran 2, Valencia 46980, Spain

[2] Univ Complutense Madrid, Dept Fis Aplicada 3, E-28040 Madrid, Spain

[3] Univ Complutense Madrid, Inst Pluridisciplinar, E-28040 Madrid, Spain

[4] Univ Erlangen Nurnberg, Dept Chem & Pharm, Henkestr 42, D-91054 Erlangen, Germany

[5] Univ Erlangen Nurnberg, Inst Adv Mat & Processes ZMP, Henkestr 42, D-91054 Erlangen, Germany

[6] Dr Mack Str 81, D-90762 Furth, Germany

来源：

INORGANIC CHEMISTRY FRONTIERS | 2016年 / 3卷 / 04期

关键词：

HYBRID MATERIALS; PRECURSORS; EXFOLIATION; SUSPENSIONS; CATALYSTS; ALKALINE; GRAPHENE; COMPLEX; OXIDES;

D O I：

10.1039/c6qi00009f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Alkoxide-intercalated NiFe-layered double hydroxides were synthesized via the nonaqueous methanolic route. These nanoplatelets exhibit high crystalline quality as demonstrated by atomic resolution scanning transmission electron microscopy combined with electron energy-loss spectroscopy. Moreover, the presence of the alkoxide moieties has been unambiguously demonstrated by means of thermogravimetric analysis coupled to a mass spectrometer. These NiFe-LDHs can be exfoliated in water or organic solvents and processed into homogeneous ultra-thin films (<3 nm thick) with the assistance of O-2-plasma. The study of their behaviour as water oxidation electrocatalysts has shown an outstanding performance at basic pHs (small overpotential of ca. 249 mV and Tafel slopes in the range of 52-55 mV per decade).

引用

页码：478 / 487

页数：10

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