Development of inorganic-organic CdSe(en)0.5via microwave-assisted method and topotactic transformation into porous CdSe nanosheet photoanode for photoelectrochemical hydrogen production

Ruturaj P Patil; Periyasamy Anushkkaran; Mahadeo A Mahadik; Weon-Sik Chae; Hyun Gyu Kim; Bongkyu Kim; Jum Suk Jang

doi:10.1016/j.jcis.2024.10.149

Development of inorganic-organic CdSe(en)_0.5via microwave-assisted method and topotactic transformation into porous CdSe nanosheet photoanode for photoelectrochemical hydrogen production

J Colloid Interface Sci. 2025 Feb;679(Pt B):1001-1009. doi: 10.1016/j.jcis.2024.10.149. Epub 2024 Oct 28.

Authors

Ruturaj P Patil¹, Periyasamy Anushkkaran², Mahadeo A Mahadik³, Weon-Sik Chae⁴, Hyun Gyu Kim⁵, Bongkyu Kim⁶, Jum Suk Jang⁷

Affiliations

¹ Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 570-752, Republic of Korea.
² Department of Integrative Environmental Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 570-752, Republic of Korea.
³ School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA.
⁴ Daegu Center, Korea Basic Science Institute, Daegu 41566, Republic of Korea.
⁵ Busan Center, Korea Basic Science Institute (KBSI), Busan 46742, Republic of Korea. Electronic address: [email protected].
⁶ Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 570-752, Republic of Korea. Electronic address: [email protected].
⁷ Division of Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 570-752, Republic of Korea; Department of Integrative Environmental Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 570-752, Republic of Korea. Electronic address: [email protected].

PMID: 39488019
DOI: 10.1016/j.jcis.2024.10.149

Abstract

In this study, inorganic-organic hybrid CdSe(en)_0.5 nanosheet (NS) was developed on Cd foil via the microwave-assisted (MW) method with different MW irradiation cycles. Furthermore, the photoelectrochemical (PEC) performance of the mother material was improved through a second hydrothermal method with different time variations (3, 6, and 12 h at 160 °C). After the second hydrothermal, organic moieties were removed, and a porous photoanode was obtained. The optimized CdSe-6H photoanode showed a photocurrent density of 7.4 mA cm^-2 (0 V vs Ag/AgCl) with 272 μmol cm^-2/3h hydrogen gas evolution under one sun illumination. The enhanced PEC performance was attributed to the topotactic transformation, improved light absorbance, enhanced charge separation, and improved surface area. This work offers a rational approach for building inorganic-organic electrodes through the MW method and porous photoanode for PEC hydrogen production.

Keywords: Inorganic-organic CdSe(en)(0.5) nanosheet; Microwave-assisted method; Photoelectrochemical hydrogen evolution; Porous material.