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Wei L, Fang N, Xue F, Liu S, Huang WH, Pao CW, Hu Z, Xu Y, Geng H, Huang X. Amorphous-crystalline RuTi nanosheets enhancing OH species adsorption for efficient hydrogen oxidation catalysis. Chem Sci 2024; 15:3928-3935. [PMID: 38487225 PMCID: PMC10935717 DOI: 10.1039/d3sc06705j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/29/2024] [Indexed: 03/17/2024] Open
Abstract
Anion exchange membrane fuel cells are a potentially cost-effective energy conversion technology, however, the electrocatalyst for the anodic hydrogen oxidation reaction (HOR) suffers from sluggish kinetics under alkaline conditions. Herein, we report that Ru-based nanosheets with amorphous-crystalline heterointerfaces of Ru and Ti-doped RuO2 (a/c-Ru/Ti-RuO2) can serve as a highly efficient HOR catalyst with a mass activity of 4.16 A mgRu-1, which is 19.8-fold higher than that of commercial Pt/C. Detailed characterization studies show that abundant amorphous-crystalline heterointerfaces of a/c-Ru/Ti-RuO2 nanosheets provide oxygen vacancies and unsaturated coordination bonds for balancing adsorption of hydrogen and hydroxyl species on Ru active sites to elevate HOR activity. Moreover, Ti doping can facilitate CO oxidation, leading to enhanced strength to CO poisoning. This work provides a strategy for enhancing alkaline HOR performance over Ru-based catalysts with heteroatom and heterointerface dual-engineering, which will attract immediate interest in chemistry, materials science and beyond.
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Affiliation(s)
- Licheng Wei
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Nan Fang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Fei Xue
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40 Dresden 01187 Germany
| | - Yong Xu
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS) 398 Ruoshui Road Suzhou 215123 China
| | - Hongbo Geng
- School of Materials Engineering, Changshu Institute of Technology Changshu 215500 China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
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Tan KC, Pei Q, Yu J, Wen H, Yu Y, Wang J, Nordin NI, He T, Chua YS, Chen P. Realizing room temperature catalytic hydrogenation of sodium phenoxide by Ru/TiO 2 for hydrogen storage. Chem Commun (Camb) 2023; 59:4177-4180. [PMID: 36942825 DOI: 10.1039/d3cc00068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Sodium phenoxide is a potentially promising hydrogen storage material due to its high hydrogen capacity and enhanced thermodynamic properties. Nevertheless, efficient catalysts are still lacking due to the high kinetic barrier for the reversible hydrogen uptake and release of sodium phenoxide. In the current work, a comparative study on the catalytic hydrogenation of sodium phenoxide was conducted. To our delight, a simple yet effective ruthenium-based catalyst was identified to respond aggressively to hydrogen in the solid-state hydrogenation of sodium phenoxide even at room temperature. The activity was enhanced by 6 fold with the as-synthesized 5.0% Ru/TiO2 catalyst as compared to that with commercial 5.0% Ru/Al2O3, respectively, under the same conditions.
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Affiliation(s)
- Khai Chen Tan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
- Centre of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Chemical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia.
| | - Qijun Pei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Jiafeng Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Hong Wen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Yang Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Jintao Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
- Centre of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nor Izzati Nordin
- School of Chemical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia.
| | - Teng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
- Centre of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Shen Chua
- School of Chemical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia.
| | - Ping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
- Centre of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Song L, Liu Y, Zhang S, Zhou C, Ma K, Yue H. Tuning Oxygen Vacancies of the Co 3O 4 Catalyst through an Ethanol-Assisted Hydrothermal Method for Low-Temperature CO Oxidation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Lei Song
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yanhong Liu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Shihui Zhang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Changan Zhou
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hairong Yue
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
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Facile In–Situ Construction of Granular–Polyhedral Ag2O–Ag2CO3/Lamellar Bi2O2CO3–Bi2MoO6 Spherical Heterojunction with Enhanced Photocatalytic Activity Towards Pollutants. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02399-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Enhanced Performance of Supported Ternary Metal Catalysts for the Oxidation of Toluene in the Presence of Trichloroethylene. Catalysts 2022. [DOI: 10.3390/catal12050541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Chlorinated volatile organic compounds (CVOCs), even in small quantities, can cause Pt-based catalyst poisoning. Improving the low-temperature chlorine resistance of catalysts is of vital importance for industrial application, although it remains challenging. Considering actual industrial production, a TiO2-supported ternary metal catalyst was prepared in this work to study the catalytic oxidation of multicomponent VOCs (toluene and trichloroethylene (TCE)). Among all of the samples, PtWRu/TiO2 and PtWCr/TiO2 exhibited the best catalytic performance for toluene oxidation. In the mixed VOC oxidation, the PtWCr/TiO2 sample showed the best catalytic activity for toluene combustion (a toluene conversion of 90% was achieved at 258 °C and a space velocity of 40,000 mL g−1 h−1, and the specific reaction rate and turnover frequency at 215 °C were 44.9 × 10−6 mol gPt−1 s−1 and 26.2 × 10−5 s−1). The PtWRu/TiO2 sample showed the best catalytic activity for TCE combustion (a TCE conversion of 90% was achieved at 305 °C and a space velocity of 40,000 mL g−1 h−1, and the specific reaction rate and turnover frequency at 270 °C were 9.0 × 10−6 mol gPt−1 s−1 and 7.3 × 10–5 s−1). We concluded that the ternary metal catalysts could greatly improve chlorine desorption by increasing the active lattice oxygen mobility and surface acidity, thus reducing chlorinated byproducts and other serious environmental pollutants. This work may serve as a reasonable design reference for solving more practical industrial production emissions of multicomponent VOCs.
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Li C, Zhang Z, Zheng Y, Fang B, Ni J, Lin J, Lin B, Wang X, Jiang L. Titanium modified Ru/CeO2 catalysts for ammonia synthesis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117434] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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