New picolinate-functionalized titanium-oxide clusters: syntheses, structures and photocatalytic H2 evolution

Chang Gao; Dexin Wang; Yanshu Liu; Guanyun Zhang; Caiyun Liu; Amir Said; Huihui Niu; Guo Wang; Chen Ho Tung; Yifeng Wang

doi:10.1039/d2dt01882a

New picolinate-functionalized titanium-oxide clusters: syntheses, structures and photocatalytic H₂ evolution

Chang Gao, Dexin Wang, Yanshu Liu, Guanyun Zhang, Caiyun Liu, Amir Said, Huihui Niu, Guo Wang, Chen Ho Tung, Yifeng Wang

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Two nanosized titanium-oxide clusters (TOCs), Ti₁₂(μ₂-O)₁₄(μ₃-O)₄PA₁₆ (1; PA = 2-picolinate) and Ti₁₂(μ₂-O)₁₈PA₁₈ (2) were synthesized by using 2-picolinic acid and Ti(OⁱPr)₄ in one-pot reactions. Their structures were determined using single-crystal X-ray diffractometry. Although both have the same core composition of Ti₁₂O₁₈, 1 exhibited superior H₂ evolution activity of up to 180 μmol h⁻¹ g⁻¹, which is nearly eight times faster than 2. Mechanism studies revealed that 1 could induce the assembly of 2.3 nm PtNPs into 10-30 nm supra-nanoparticle structures, which contributed to the increased H₂ evolution rate.

Original language	English
Journal	Dalton Transactions
DOIs	https://doi.org/10.1039/d2dt01882a
State	Accepted/In press - 1 Jan 2022
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/d2dt01882a

Cite this

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title = "New picolinate-functionalized titanium-oxide clusters: syntheses, structures and photocatalytic H2 evolution",

abstract = "Two nanosized titanium-oxide clusters (TOCs), Ti12(μ2-O)14(μ3-O)4PA16 (1; PA = 2-picolinate) and Ti12(μ2-O)18PA18 (2) were synthesized by using 2-picolinic acid and Ti(OiPr)4 in one-pot reactions. Their structures were determined using single-crystal X-ray diffractometry. Although both have the same core composition of Ti12O18, 1 exhibited superior H2 evolution activity of up to 180 μmol h−1 g−1, which is nearly eight times faster than 2. Mechanism studies revealed that 1 could induce the assembly of 2.3 nm PtNPs into 10-30 nm supra-nanoparticle structures, which contributed to the increased H2 evolution rate.",

author = "Chang Gao and Dexin Wang and Yanshu Liu and Guanyun Zhang and Caiyun Liu and Amir Said and Huihui Niu and Guo Wang and Tung, {Chen Ho} and Yifeng Wang",

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year = "2022",

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doi = "10.1039/d2dt01882a",

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journal = "Dalton Transactions",

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TY - JOUR

T1 - New picolinate-functionalized titanium-oxide clusters

T2 - syntheses, structures and photocatalytic H2 evolution

AU - Gao, Chang

AU - Wang, Dexin

AU - Liu, Yanshu

AU - Zhang, Guanyun

AU - Liu, Caiyun

AU - Said, Amir

AU - Niu, Huihui

AU - Wang, Guo

AU - Tung, Chen Ho

AU - Wang, Yifeng

PY - 2022/1/1

Y1 - 2022/1/1

N2 - Two nanosized titanium-oxide clusters (TOCs), Ti12(μ2-O)14(μ3-O)4PA16 (1; PA = 2-picolinate) and Ti12(μ2-O)18PA18 (2) were synthesized by using 2-picolinic acid and Ti(OiPr)4 in one-pot reactions. Their structures were determined using single-crystal X-ray diffractometry. Although both have the same core composition of Ti12O18, 1 exhibited superior H2 evolution activity of up to 180 μmol h−1 g−1, which is nearly eight times faster than 2. Mechanism studies revealed that 1 could induce the assembly of 2.3 nm PtNPs into 10-30 nm supra-nanoparticle structures, which contributed to the increased H2 evolution rate.

AB - Two nanosized titanium-oxide clusters (TOCs), Ti12(μ2-O)14(μ3-O)4PA16 (1; PA = 2-picolinate) and Ti12(μ2-O)18PA18 (2) were synthesized by using 2-picolinic acid and Ti(OiPr)4 in one-pot reactions. Their structures were determined using single-crystal X-ray diffractometry. Although both have the same core composition of Ti12O18, 1 exhibited superior H2 evolution activity of up to 180 μmol h−1 g−1, which is nearly eight times faster than 2. Mechanism studies revealed that 1 could induce the assembly of 2.3 nm PtNPs into 10-30 nm supra-nanoparticle structures, which contributed to the increased H2 evolution rate.

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