Baekwon Park

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10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

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27 February 2017 in Nanoscale

Journal Article

Mapping of Bernal and non-Bernal stacking domains in bilayer graphene using infrared nanoscopy

Gyouil Jeong

Boogeon Choi

Deok-Soo Kim

Seongjin Ahn

Baekwon Park

Zee Hwan Kim

Bilayer graphene (BLG) shows great potential as a new material for opto-electronic devices because its bandgap can be controlled by varying the stacking orders, as well as by applying an external electric field. An imaging technique that can visualize and characterize various stacking domains in BLG may greatly help in fully utilizing such properties of BLG. Here we demonstrate that infrared (IR) scattering-type scanning near-field optical microscopy (sSNOM) can visualize Bernal and non-Bernal stacking domains of BLG, based on the stacking-specific inter- and intra-band optical conductivities. The method enables nanometric mapping of stacking domains in BLG on dielectric substrates, augmenting current limitations of Raman spectroscopy and electron microscopy techniques for the structural characterization of BLG.

27 February 2018 in Nanoscale

Journal Article

Catalytic degradation of phenols by recyclable CVD graphene films

Sang Woo Seo

Baekwon Park

Sang Jin Kim

Yong Seok Choi

Sungmin Park

Byung Hee Hong

This communication proposes the use of monolayer CVD graphene as a novel metal-free catalyst for degradation of phenols.

29 October 2020 in Catalysts

Journal Article

Photocatalytic Degradation of Phenol Using Chemical Vapor Desposition Graphene Column

In the field of wastewater treatment, the advanced oxidation process (AOP) is a widely employed method. It uses reactive oxygen species (ROS) to degrade harmful organic and inorganic chemicals. Metal catalysts are the conventional standard when using these methods. However, they have drawbacks such as harsh activation conditions and poor recyclability. We previously suggested chemical vapor deposition (CVD) graphene film as an alternative metal-free catalyst. In this study, we enhanced the catalytic activity of the CVD graphene film by synergistically adding UV light irradiation. The result was complete degradation of phenol on a wafer-scale in a reduced timeframe. To further enhance the degradation process, we devised a graphene-based column for continuous in situ chemical oxidation and analyzed the intermediates over time, proving the potential of graphene-assisted AOP in industrial wastewater applications.

About Me

Education 2015.3 ~ 2021.2, Doctor of Philosophy, Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea. 2010.3 ~ 2014.2, Bachelor of Science, Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea. Professional experience 2014.7 ~ 2015.2, Researcher, Inter-university Semiconductor Research Center, Seoul National University, Seoul, Republic of Korea. 2014.3 ~ 2014.6, Graduate student in Biomedical Polymer Laboratory, Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea. 2013.9 ~ 2013.12, Undergraduate Research Program in Biomedical Polymer Laboratory, Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea. 2013.3 ~ 2013.6, Undergraduate Research Program in Nano Structured Energy Materials Laboratory, Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea.

Baekwon Park

Baekwon Park

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About Me