In situ transmission electron microscopy of light-induced photocatalytic reactions

Filippo Cavalca; Anders Bo Laursen; Beata Kardynal; Rafal E. Dunin-Borkowski; Søren Dahl; Jakob Birkedal Wagner; Thomas Willum Hansen

doi:10.1088/0957-4484/23/7/075705

In situ transmission electron microscopy of light-induced photocatalytic reactions

Filippo Cavalca, Anders Bo Laursen, Beata Kardynal, Rafal E. Dunin-Borkowski, Søren Dahl, Jakob Birkedal Wagner, Thomas Willum Hansen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Transmission electron microscopy (TEM) makes it possible to obtain insight into the structure, composition and reactivity of photocatalysts, which are of fundamental interest for sustainable energy research. Such insight can be used for further material optimization. Here, we combine conventional TEM analysis of photocatalysts with environmental TEM (ETEM) and photoactivation using light. Two novel types of TEM specimen holder that enable in situ illumination are developed to study light-induced phenomena in photoactive materials, systems and photocatalysts at the nanoscale under working conditions. The technological development of the holders is described and two representative photo-induced phenomena are studied: the photodegradation of Cu2O and the photodeposition of Pt onto a GaN:ZnO photocatalyst.

Original language	English
Journal	Nanotechnology
Volume	23
Issue number	7
Pages (from-to)	075705
ISSN	0957-4484
DOIs	https://doi.org/10.1088/0957-4484/23/7/075705
Publication status	Published - 2012

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title = "In situ transmission electron microscopy of light-induced photocatalytic reactions",

abstract = "Transmission electron microscopy (TEM) makes it possible to obtain insight into the structure, composition and reactivity of photocatalysts, which are of fundamental interest for sustainable energy research. Such insight can be used for further material optimization. Here, we combine conventional TEM analysis of photocatalysts with environmental TEM (ETEM) and photoactivation using light. Two novel types of TEM specimen holder that enable in situ illumination are developed to study light-induced phenomena in photoactive materials, systems and photocatalysts at the nanoscale under working conditions. The technological development of the holders is described and two representative photo-induced phenomena are studied: the photodegradation of Cu2O and the photodeposition of Pt onto a GaN:ZnO photocatalyst.",

author = "Filippo Cavalca and Laursen, {Anders Bo} and Beata Kardynal and Dunin-Borkowski, {Rafal E.} and S{\o}ren Dahl and Wagner, {Jakob Birkedal} and Hansen, {Thomas Willum}",

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doi = "10.1088/0957-4484/23/7/075705",

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T1 - In situ transmission electron microscopy of light-induced photocatalytic reactions

AU - Cavalca, Filippo

AU - Laursen, Anders Bo

AU - Kardynal, Beata

AU - Dunin-Borkowski, Rafal E.

AU - Dahl, Søren

AU - Wagner, Jakob Birkedal

AU - Hansen, Thomas Willum

PY - 2012

Y1 - 2012

N2 - Transmission electron microscopy (TEM) makes it possible to obtain insight into the structure, composition and reactivity of photocatalysts, which are of fundamental interest for sustainable energy research. Such insight can be used for further material optimization. Here, we combine conventional TEM analysis of photocatalysts with environmental TEM (ETEM) and photoactivation using light. Two novel types of TEM specimen holder that enable in situ illumination are developed to study light-induced phenomena in photoactive materials, systems and photocatalysts at the nanoscale under working conditions. The technological development of the holders is described and two representative photo-induced phenomena are studied: the photodegradation of Cu2O and the photodeposition of Pt onto a GaN:ZnO photocatalyst.

AB - Transmission electron microscopy (TEM) makes it possible to obtain insight into the structure, composition and reactivity of photocatalysts, which are of fundamental interest for sustainable energy research. Such insight can be used for further material optimization. Here, we combine conventional TEM analysis of photocatalysts with environmental TEM (ETEM) and photoactivation using light. Two novel types of TEM specimen holder that enable in situ illumination are developed to study light-induced phenomena in photoactive materials, systems and photocatalysts at the nanoscale under working conditions. The technological development of the holders is described and two representative photo-induced phenomena are studied: the photodegradation of Cu2O and the photodeposition of Pt onto a GaN:ZnO photocatalyst.

U2 - 10.1088/0957-4484/23/7/075705

DO - 10.1088/0957-4484/23/7/075705

M3 - Journal article

C2 - 22261463

SN - 0957-4484

VL - 23

SP - 075705

JO - Nanotechnology

JF - Nanotechnology

IS - 7

ER -

In situ transmission electron microscopy of light-induced photocatalytic reactions

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