A nickel containing polyoxometalate water oxidation catalyst

Guibo Zhu; Elliot N. Glass; Chongchao Zhao; Hongjin Lv; James W. Vickers; Yurii V. Geletii; Djamaladdin G. Musaev; Jie Song; Craig L. Hill

doi:10.1039/c2dt30331k

A nickel containing polyoxometalate water oxidation catalyst

Guibo Zhu, Elliot N. Glass, Chongchao Zhao, Hongjin Lv, James W. Vickers, Yurii V. Geletii, Djamaladdin G. Musaev, Jie Song, Craig L. Hill^*

^*此作品的通讯作者

Emory University

科研成果: 期刊稿件 › 文章 › 同行评审

111 引用（Scopus）

摘要

A new pentanickel silicotungstate complex, K ₁₀H ₂[Ni ₅(OH) ₆(OH ₂) ₃(Si ₂W ₁₈O ₆₆)]·34H ₂O (KH-1), has been synthesized and characterized by X-ray crystallography and several other methods. Dynamic light scattering, kinetics and other experiments confirm that 1 in the presence of [Ru(bpy) ₃] ²⁺ (the photosensitizer for light-driven water oxidations) and [Ru(bpy) ₃] ³⁺ (the oxidant in the dark water oxidations) exists in an equilibrium between solution (soluble) and a [Ru(bpy) ₃] ⁿ⁺-1 complex (minimally soluble) form. This new pentanickel polyoxometalate catalyzes efficient water oxidation in both the dark and on irradiation with 455 nm LED light with 1.0 mM [Ru(bpy) ₃] ²⁺ photosensitizer and 5.0 mM Na ₂S ₂O ₈, sacrificial electron acceptor. Four lines of evidence indicate that 1 in this solution Ru(bpy) ₃] ⁿ⁺-1 complex equilibrium remains molecular and does not decompose to nickel hydroxide particles.

源语言	英语
页（从-至）	13043-13049
页数	7
期刊	Dalton Transactions
卷	41
期	42
DOI	https://doi.org/10.1039/c2dt30331k
出版状态	已出版 - 14 11月 2012
已对外发布	是

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@article{1f3d73b851ce473c851d0c3b6b36a500,

title = "A nickel containing polyoxometalate water oxidation catalyst",

abstract = "A new pentanickel silicotungstate complex, K 10H 2[Ni 5(OH) 6(OH 2) 3(Si 2W 18O 66)]·34H 2O (KH-1), has been synthesized and characterized by X-ray crystallography and several other methods. Dynamic light scattering, kinetics and other experiments confirm that 1 in the presence of [Ru(bpy) 3] 2+ (the photosensitizer for light-driven water oxidations) and [Ru(bpy) 3] 3+ (the oxidant in the dark water oxidations) exists in an equilibrium between solution (soluble) and a [Ru(bpy) 3] n+-1 complex (minimally soluble) form. This new pentanickel polyoxometalate catalyzes efficient water oxidation in both the dark and on irradiation with 455 nm LED light with 1.0 mM [Ru(bpy) 3] 2+ photosensitizer and 5.0 mM Na 2S 2O 8, sacrificial electron acceptor. Four lines of evidence indicate that 1 in this solution Ru(bpy) 3] n+-1 complex equilibrium remains molecular and does not decompose to nickel hydroxide particles.",

author = "Guibo Zhu and Glass, {Elliot N.} and Chongchao Zhao and Hongjin Lv and Vickers, {James W.} and Geletii, {Yurii V.} and Musaev, {Djamaladdin G.} and Jie Song and Hill, {Craig L.}",

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AU - Zhu, Guibo

AU - Glass, Elliot N.

AU - Zhao, Chongchao

AU - Lv, Hongjin

AU - Vickers, James W.

AU - Geletii, Yurii V.

AU - Musaev, Djamaladdin G.

AU - Song, Jie

AU - Hill, Craig L.

PY - 2012/11/14

Y1 - 2012/11/14

N2 - A new pentanickel silicotungstate complex, K 10H 2[Ni 5(OH) 6(OH 2) 3(Si 2W 18O 66)]·34H 2O (KH-1), has been synthesized and characterized by X-ray crystallography and several other methods. Dynamic light scattering, kinetics and other experiments confirm that 1 in the presence of [Ru(bpy) 3] 2+ (the photosensitizer for light-driven water oxidations) and [Ru(bpy) 3] 3+ (the oxidant in the dark water oxidations) exists in an equilibrium between solution (soluble) and a [Ru(bpy) 3] n+-1 complex (minimally soluble) form. This new pentanickel polyoxometalate catalyzes efficient water oxidation in both the dark and on irradiation with 455 nm LED light with 1.0 mM [Ru(bpy) 3] 2+ photosensitizer and 5.0 mM Na 2S 2O 8, sacrificial electron acceptor. Four lines of evidence indicate that 1 in this solution Ru(bpy) 3] n+-1 complex equilibrium remains molecular and does not decompose to nickel hydroxide particles.

AB - A new pentanickel silicotungstate complex, K 10H 2[Ni 5(OH) 6(OH 2) 3(Si 2W 18O 66)]·34H 2O (KH-1), has been synthesized and characterized by X-ray crystallography and several other methods. Dynamic light scattering, kinetics and other experiments confirm that 1 in the presence of [Ru(bpy) 3] 2+ (the photosensitizer for light-driven water oxidations) and [Ru(bpy) 3] 3+ (the oxidant in the dark water oxidations) exists in an equilibrium between solution (soluble) and a [Ru(bpy) 3] n+-1 complex (minimally soluble) form. This new pentanickel polyoxometalate catalyzes efficient water oxidation in both the dark and on irradiation with 455 nm LED light with 1.0 mM [Ru(bpy) 3] 2+ photosensitizer and 5.0 mM Na 2S 2O 8, sacrificial electron acceptor. Four lines of evidence indicate that 1 in this solution Ru(bpy) 3] n+-1 complex equilibrium remains molecular and does not decompose to nickel hydroxide particles.

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A nickel containing polyoxometalate water oxidation catalyst

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