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Xu J, Zhong M, Yan S, Chen X, Li W, Xu M, Wang C, Lu X. Partial oxidation of Rh/Ru nanoparticles within carbon nanofibers for high-efficiency hydrazine oxidation-assisted hydrogen generation. J Colloid Interface Sci 2025; 679:171-180. [PMID: 39362142 DOI: 10.1016/j.jcis.2024.09.227] [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: 07/24/2024] [Revised: 09/27/2024] [Accepted: 09/27/2024] [Indexed: 10/05/2024]
Abstract
Hydrazine oxidation reaction (HzOR), an alternative to oxygen evolution reaction, effectively mitigates hydrazine pollution while achieving energy-efficient hydrogen production. Herein, partially oxidized Ru/Rh nanoparticles embedded in carbon nanofibers (CNFs) are fabricated as a bifunctional electrocatalyst for hydrogen evolution reaction (HER) and HzOR. The presence of multiple components including metallic Ru and Rh and their oxides provides numerous electrochemically active sites and superior charge transfer properties, thus improving the electrocatalytic performance. Additionally, the confinement of the active components within CNFs further enhances structural stability. Consequently, the optimized electrocatalyst exhibits ultralow overpotentials of 16 mV at 10 mA cm-2 and 176 mV to reach an industry-level current density of 1 A cm-2 for HER, considerably outperforming the benchmark Pt/C catalyst. Furthermore, it shows an outstanding anodic HzOR activity, achieving a small potential of -0.019 V to generate 10 mAcm-2. A two-electrode overall hydrazine splitting (OHzS) cell prepared using the electrocatalyst operates at a compelling voltage that is 1.953 V lower than that of the overall water splitting (OWS) cell at 200 mA cm-2. Furthermore, the OHzS cell achieves a hydrogen production rate of 1.17 mmol h-1, which is 15-fold that of OWS. Additionally, Rh1Ru1Ox-CNFs-350 is used to construct a Zn-hydrazine battery with excellent performance. This study presents an effective system for achieving high-yielding green H2 production with low energy consumption while simultaneously addressing hydrazine pollution.
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Affiliation(s)
- Jiaqi Xu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Mengxiao Zhong
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin Province, 130012 PR China.
| | - Su Yan
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Xiaojie Chen
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Weimo Li
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Meijiao Xu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Ce Wang
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China.
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Zhu Y, Chen Y, Feng Y, Meng X, Xia J, Zhang G. Constructing Ru-O-TM Bridge in NiFe-LDH Enables High Current Hydrazine-assisted H 2 Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401694. [PMID: 38721895 DOI: 10.1002/adma.202401694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/23/2024] [Indexed: 05/16/2024]
Abstract
Hydrazine oxidation-assisted water splitting is a critical technology to tackle the high energy consumption in large-scale H2 production. Ru-based electrocatalysts hold promise for synergetic hydrogen reduction (HER) and hydrazine oxidation (HzOR) catalysis but are hindered by excessive superficial adsorption of reactant intermediate. Herein, this work designs Ru cluster anchoring on NiFe-LDH (denoted as Ruc/NiFe-LDH), which effectively enhances the intermediate adsorption capacity of Ru by constructing Ru─O─Ni/Fe bridges. Notably, it achieves an industrial current density of 1 A cm-2 at an unprecedentedly low voltage of 0.43 V, saving 3.94 kWh m-3 H2 in energy, and exhibits remarkable stability over 120 h at a high current density of 5 A cm-2. Advanced characterizations and theoretical calculation reveal that the presence of Ru─O─Ni/Fe bridges widens the d-band width (Wd) of the Ru cluster, leading to a lower d-band center and higher electron occupation on antibonding orbitals, thereby facilitating moderate adsorption energy and enhanced catalytic activity of Ru.
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Affiliation(s)
- Yin Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yanxu Chen
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yafei Feng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry Chinese Academy of Science, Beijing, 100190, China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry Chinese Academy of Science, Beijing, 100190, China
| | - Genqiang Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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3
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Fu X, Cheng D, Wan C, Kumari S, Zhang H, Zhang A, Huyan H, Zhou J, Ren H, Wang S, Zhao Z, Zhao X, Chen J, Pan X, Sautet P, Huang Y, Duan X. Bifunctional Ultrathin RhRu 0.5 -Alloy Nanowire Electrocatalysts for Hydrazine-Assisted Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301533. [PMID: 36944373 DOI: 10.1002/adma.202301533] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Indexed: 06/09/2023]
Abstract
Hydrazine-assisted water electrolysis offers a feasible path for low-voltage green hydrogen production. Herein, the design and synthesis of ultrathin RhRu0.5 -alloy wavy nanowires as bifunctional electrocatalysts for both the anodic hydrazine oxidation reaction (HzOR) and the cathodic hydrogen evolution reaction (HER) is reported. It is shown that the RhRu0.5 -alloy wavy nanowires can achieve complete electrooxidation of hydrazine with a low overpotential and high mass activity, as well as improved performance for the HER. The resulting RhRu0.5 bifunctional electrocatalysts enable, high performance hydrazine-assisted water electrolysis delivering a current density of 100 mA cm-2 at an ultralow cell voltage of 54 mV and a high current density of 853 mA cm-2 at a cell voltage of 0.6 V. The RhRu0.5 electrocatalysts further demonstrate a stable operation at a high current density of 100 mA cm-2 for 80 hours of testing period with little irreversible degradation. The overall performance greatly exceeds that of the previously reported hydrazine-assisted water electrolyzers, offering a pathway for efficiently converting hazardous hydrazine into molecular hydrogen.
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Affiliation(s)
- Xiaoyang Fu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Dongfang Cheng
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Chengzhang Wan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Simran Kumari
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Hongtu Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ao Zhang
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Huaixun Huyan
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, 92697, USA
| | - Jingxuan Zhou
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Huaying Ren
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Sibo Wang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Zipeng Zhao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xun Zhao
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, 92697, USA
| | - Philippe Sautet
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yu Huang
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xiangfeng Duan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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Wang W, Qian Q, Li Y, Zhu Y, Feng Y, Cheng M, Zhang H, Zhang Y, Zhang G. Robust and Highly Efficient Electrochemical Hydrogen Production from Hydrazine-Assisted Water Electrolysis Enabled by the Metal-Support Interaction of Ru/C Composites. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37225429 DOI: 10.1021/acsami.3c04342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hydrazine oxidation-assisted water electrolysis provides a promising way for the energy-efficient electrochemical hydrogen (H2) and synchronous decomposition of hydrazine-rich wastewater, but the development of highly active catalysts still remains a great challenge. Here, we demonstrate the robust and highly active Ru nanoparticles supported on the hollow N-doped carbon microtube (denoted as Ru NPs/H-NCMT) composite structure as HER and HzOR bifunctional electrocatalysts. Thanks to such unique hierarchical architectures, the as-synthesized Ru NPs/H-NCMTs exhibit prominent electrocatalytic activity in the alkaline condition, which needs a low overpotential of 29 mV at 10 mA cm-2 for HER and an ultrasmall working potential of -0.06 V (vs RHE) to attain the same current density for HzOR. In addition, assembling a two-electrode hybrid electrolyzer using as-prepared Ru NPs/H-NCMT catalysts shows a small cell voltage of mere 0.108 V at 100 mA cm-2, as well as the remarkable long-term stability. Density functional theory calculations further reveal that the Ru NPs serve as the active sites for both the HER and HzOR in the nanocomposite, which facilitates the adsorption of H atoms and hydrazine dehydrogenation kinetics, thus enhancing the performances of HER and HzOR. This work paves a novel avenue to develop efficient and stable electrocatalysts toward HER and HzOR that promises energy-saving hybrid water electrolysis electrochemical H2 production.
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Affiliation(s)
- Wentao Wang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Qizhu Qian
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Yapeng Li
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Yin Zhu
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Yafei Feng
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Mingyu Cheng
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Huaikun Zhang
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Yangyang Zhang
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Genqiang Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
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5
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Xin H, Xiu Z, Liu S, Wang H, Wang C, Ma L, Liu Q. Efficient conversion of lactic acid to alanine over noble metal supported on Ni@C catalysts. RSC Adv 2022; 12:16847-16859. [PMID: 35754887 PMCID: PMC9171590 DOI: 10.1039/d2ra02514k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/04/2022] [Indexed: 11/21/2022] Open
Abstract
Alanine (Ala), regarded as the building block for protein synthesis, has been widely used in the field of food processing, pharmaceutical, and bio-based plastic industries. Containing plenty of oxygenic functional groups, biomass-derived chemicals are proper for Ala synthesis in an economic and green way via amination. In this work, lactic acid (LA) derived from renewable biomass and waste glycerol (the major by-product of biodiesel industry) was used to produce Ala. Here, a series of magnetic catalysts M/Ni@C (M = Ru, Pt, Pd, Ir, and Rh) were synthesized by ethylene glycol reduction of metal M supported on encapsulated Ni@C. Compared with catalysts based on other M metals, Ru/Ni@C catalysts exhibited extraordinary efficiency with 91.4% selectivity for Ala synthesis from LA (63.7% yield of Ala and 69.7% conversion of LA). The results of experiments and catalyst characterization indicated that the doping of M metals could improve the dehydrogenation ability of catalysts, as well as the ability of NH3 adsorption, facilitating the reaction towards Ala. Overall, this study provides an efficient chemo-catalytic way for the production of Ala from biomass-derived substrates. Lactic acid can be converted into alanine with a high selectivity of 91.4% over Ru/Ni@C catalysts.![]()
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Affiliation(s)
- Haosheng Xin
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835.,CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China.,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhongxun Xiu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835.,CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China
| | - Shijun Liu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835
| | - Haiyong Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835.,CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China
| | - Chenguang Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835.,CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China
| | - Longlong Ma
- CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China
| | - Qiying Liu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 P. R. China +86-20-87057637 +86-20-37029835.,CAS Key Laboratory of Renewable Energy Guangzhou 510640 P. R. China.,Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 P. R. China
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