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Yang Z, Chen H, Bei S, Bao K, Zhang C, Xiang M, Yu C, Dong S, Qin H. Ultralow RuO 2 Doped NiS 2 Heterojunction as a Multifunctional Electrocatalyst for Hydrogen Evolution linking to Biomass Organics Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310286. [PMID: 38164824 DOI: 10.1002/smll.202310286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Hydrogen energy and biomass energy are green and sustainable forms that can solve the energy crisis all over the world. Electrocatalytic water splitting is a marvelous way to produce hydrogen and biomass platform molecules can be added into the electrolyte to reduce the overpotential and meanwhile are converted into some useful organics, but the key point is the design of electrocatalyst. Herein, ultralow noble metal Ru is doped into NiS2 to form RuO2@NiS2 heterojunction. Amongst them, the 0.06 RuO2@NiS2 has low overpotentials of 363 mV for OER and 71 mV for HER in 1 m KOH, which are superior to the RuO2 and Pt/C. Besides, the 0.06 RuO2@NiS2 shows a low overpotential of 173 mV in 1 m KOH+0.1 m glycerol, and the glycerol is oxidized to glyceraldehyde and formic acid via the high Faraday efficiency GlyOR process, and the splitting voltage is only 1.17 V. In addition, the 0.06 RuO2@NiS2 has a low overpotential of 206 mV in 1 m KOH+0.1 m glucose, and the glucose is converted to glucaric acid, lactic acid, and formic acid. This work has a "one stone three birds" effect for the production of hydrogen, low splitting voltage, and high-value-added biomass chemicals.
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Affiliation(s)
- Zhou Yang
- Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Hanbing Chen
- Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Shaoyi Bei
- Department of Automotive and Traffic Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Keyan Bao
- Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Chunyong Zhang
- Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Meng Xiang
- Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Chengbin Yu
- Research Institute of Advanced Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Shuang Dong
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou, 213032, China
| | - Hengfei Qin
- Department of Resource and Environment, Jiangsu University of Technology & Key Laboratory of Precious Metal Deep Processing Technology and Application of Jiangsu Province, Changzhou, 213001, China
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Sun S, Guo Y, Xu G, Li J, Cai W. Enabling efficient ample-level oxygen evolution on nickel-iron Prussian blue analogue/hydroxide via hierarchical mass transfer channel construction. J Colloid Interface Sci 2024; 659:40-47. [PMID: 38157725 DOI: 10.1016/j.jcis.2023.12.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/27/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Enhancing double-phase mass transfer capability and reducing overpotential at high currents are critical in the oxygen evolution reaction (OER) catalyst design. In this work, nickel-iron layered double hydroxide (NiFe-LDH) loaded on nickel foam (NF) was used as a self-sacrificing template for subsequent growth of nickel-iron Prussian blue (NiFe-PBA) hollow nanocubes on its sheet arrays. The triple-scale porous structure is therefore in-situ constructed in the produced NiFe-PBA@LDH/NF catalyst, where NiFe-PBA nanocubes, NiFe-LDH sheets and NF skeletons provide pores at hundred-nanometers, microns and hundred-microns, respectively. Due to the successful construction of hierarchical mass transfer channels in the catalyst, the overpotential required to deliver 1000 mA cm-2 OER is only 396 mV, which is 80 mV lower than that of NiFe-LDH/NF with a double-scale porous structure, manifesting the importance of the appropriate mass transfer channels, promoting the potential application of the NiFe-PBA@LDH/NF catalyst in industrial-scale electrolysers.
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Affiliation(s)
- Shixin Sun
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, China
| | - Yinghua Guo
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, Hubei, China
| | - Guodong Xu
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, China.
| | - Jing Li
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, Hubei, China.
| | - Weiwei Cai
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, Hubei, China.
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