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Garain S, Barman K, Sinha TK, et al. Cerium(III) Complex Modified Gold Electrode: An Efficient Electrocatalyst for the Oxygen Evolution Reaction. ACS Appl Mater Interfaces. 2016;8(33):21294-301doi: 10.1021/acsami.6b05236.
Garain, S., Barman, K., Sinha, T. K., Jasimuddin, S., Haeberle, J., Henkel, K., Schmeisser, D., & Mandal, D. (2016). Cerium(III) Complex Modified Gold Electrode: An Efficient Electrocatalyst for the Oxygen Evolution Reaction. ACS applied materials & interfaces, 8(33), 21294-301. https://doi.org/10.1021/acsami.6b05236
Garain, Samiran, et al. "Cerium(III) Complex Modified Gold Electrode: An Efficient Electrocatalyst for the Oxygen Evolution Reaction." ACS applied materials & interfaces vol. 8,33 (2016): 21294-301. doi: https://doi.org/10.1021/acsami.6b05236
Garain S, Barman K, Sinha TK, Jasimuddin S, Haeberle J, Henkel K, Schmeisser D, Mandal D. Cerium(III) Complex Modified Gold Electrode: An Efficient Electrocatalyst for the Oxygen Evolution Reaction. ACS Appl Mater Interfaces. 2016 Aug 24;8(33):21294-301. doi: 10.1021/acsami.6b05236. Epub 2016 Aug 15. PMID: 27490440.
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ACS Appl Mater Interfaces. 2016 Aug 24;8(33):21294-301. doi: 10.1021/acsami.6b05236. Epub 2016 Aug 15.

Cerium(III) Complex Modified Gold Electrode: An Efficient Electrocatalyst for the Oxygen Evolution Reaction.

ACS applied materials & interfaces

Samiran Garain, Koushik Barman, Tridib Kumar Sinha, Sk Jasimuddin, Jörg Haeberle, Karsten Henkel, Dieter Schmeisser, Dipankar Mandal

Affiliations

  1. Organic Nano-Piezoelectric Device Laboratory, Department of Physics Jadavpur University Kolkata700032, India.
  2. Department of Chemistry, Assam University , Silchar 788011, India.
  3. Materials Science Centre, Indian Institute of Technology (IIT) , Kharagpur 721302, India.
  4. Brandenburgische Technische Universität Cottbus-Senftenberg , Angewandte Physik-Sensorik, K.-Wachsmann-Allee 17, 03046 Cottbus, Germany.

PMID: 27490440 DOI: 10.1021/acsami.6b05236

Abstract

Exploring efficient and inexpensive electrocatalysts for the oxidation of water is of great importance for various electrochemical energy storage and conversion technologies. In the present study, a new water-soluble [Ce(III)(DMF) (HSO4)3] complex was synthesized and characterized by UV-vis, photoluminescence, and high-resolution X-ray photoelectron spectroscopy techniques. Owing to classic 5d → 4f transitions, an intense photoluminescence in the UV region was observed from the water-soluble [Ce(III)(DMF) (HSO4)3] complex. A stacking electrode was designed where self-assembled l-cysteine monolayer modified gold was immobilized with the synthesized cerium complex and was characterized by scanning electron microscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. The resulting electrode, i.e., [Ce(III)(DMF) (HSO4)3]-l-cysteine-Au stacks shows high electrocatalytic water oxidation behavior at an overpotential of η ≈ 0.34 V under neutral pH conditions. We also demonstrated a way where the overpotential is possible to decrease upon irradiation of UV light.

Keywords: Ce(III)-complex; electrocatalyst; gold electrode; l-cysteine; photoelectrocatalyst; photoluminescence; water oxidation

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