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Jing Z, Guo Y, Wang Q, Yan X, Yue G, Li Z, Liu H, Qin R, Zhong C, Li M, Xu D, Yao Y, Yao Y, Shuai M. Ambient hydrogenation of solid aromatics enabled by a high entropy alloy nanocatalyst. Nat Commun 2024; 15:5806. [PMID: 38987569 PMCID: PMC11236972 DOI: 10.1038/s41467-024-50009-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 06/25/2024] [Indexed: 07/12/2024] Open
Abstract
Hydrogenation is a versatile chemical process with significant applications in various industries, including food production, petrochemical refining, pharmaceuticals, and hydrogen carriers/safety. Traditional hydrogenation of aromatics, hindered by the stable π-conjugated phenyl ring structures, typically requires high temperatures and pressures, making ambient hydrogenation a grand challenge. Herein, we introduce a PdPtRuCuNi high entropy alloy (HEA) nanocatalyst, achieving an exceptional 100% hydrogenation of carbon-carbon unsaturated bonds, including alkynyl and phenyl groups, in solid 1,4-bis(phenylethynyl)benzene (DEB) at 25 °C under ≤1 bar H2 and solventless condition. This results in a threefold higher hydrogen uptake for DEB-contained composites compared to conventional Pd catalysts, which can only hydrogenate the alkynyl groups with a ~ 27% conversion of DEB. Our experimental results, complemented by theoretical calculations, reveal that PdPtRu alloy is highly active and crucial in enabling the hydrogenation of phenyl groups, while all five elements work synergistically to regulate the reaction rate. Remarkably, this newly developed catalyst also achieves nearly 100% reactivity for ambient hydrogenation of a broad range of aromatics, suggesting its universal effectiveness. Our research uncovers a novel material platform and catalyst design principle for efficient and general hydrogenation. The multi-element synergy in HEA also promises unique catalytic behaviors beyond hydrogenation applications.
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Affiliation(s)
- Zekun Jing
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, China
| | - Yakun Guo
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, China
| | - Qi Wang
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, China
| | - Xinrong Yan
- College of Chemistry, Sichuan University, Chengdu, 610065, China
| | - Guozong Yue
- Institute of Materials, China Academy of Engineering Physics, Mianyang, 621907, China
| | - Zhendong Li
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, China
| | - Hanwen Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ruixuan Qin
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Changyin Zhong
- Institute of Materials, China Academy of Engineering Physics, Mianyang, 621907, China
| | - Mingzhen Li
- Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou, 621908, China
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Dingguo Xu
- College of Chemistry, Sichuan University, Chengdu, 610065, China.
| | - Yunxi Yao
- Institute of Materials, China Academy of Engineering Physics, Mianyang, 621907, China.
| | - Yonggang Yao
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Maobing Shuai
- Institute of Materials, China Academy of Engineering Physics, Mianyang, 621907, China.
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Sun Y, Lee J, Kwon NH, Lim J, Jin X, Gogotsi Y, Hwang SJ. Enhancing Hydrogen Evolution Reaction Activity of Palladium Catalyst by Immobilization on MXene Nanosheets. ACS NANO 2024; 18:6243-6255. [PMID: 38345597 DOI: 10.1021/acsnano.3c09640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Efficient catalysts with minimal content of catalytically active noble metals are essential for the transition to the clean hydrogen economy. Catalyst supports that can immobilize and stabilize catalytic nanoparticles and facilitate the supply of electrons and reactants to the catalysts are needed. Being hydrophilic and more conductive compared with carbons, MXenes have shown promise as catalyst supports. However, the controlled assembly of their 2D sheets creates a challenge. This study established a lattice engineering approach to regulate the assembly of exfoliated Ti3C2Tx MXene nanosheets with guest cations of various sizes. The enlargement of guest cations led to a decreased interlayer interaction of MXene lamellae and increased surface accessibility, allowing intercalation of Pd nanoparticles. Stabilization of Pd nanoparticles between interlayer-expanded MXene nanosheets improved their electrocatalytic activity. The Pd-immobilized K+-intercalated MXene nanosheets (PdKMX) demonstrated exceptional electrocatalytic performance for the hydrogen evolution reaction with the lowest overpotential of 72 mV (@10 mA cm-2) and the highest turnover frequency of 1.122 s-1 (@ an overpotential of 100 mV), which were superior to those of the state-of-the-art Pd nanoparticle-based electrocatalysts. Weakening of the interlayer interaction during self-assembly with K+ ions led to fewer layers in lamellae and expansion of the MXene in the c direction during Pd anchoring, providing numerous surface-active sites and promoting mass transport. In situ spectroscopic analysis suggests that the effective interfacial electron injection from the Pd nanoparticles strongly immobilized on interlayer-expanded PdKMX may be responsible for the improved electrocatalytic performance.
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Affiliation(s)
- Yiyang Sun
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jihyeong Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Nam Hee Kwon
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Joohyun Lim
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Multidimensional Genomics Research Center, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute, and Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
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Liu H, Zhu P, Yang D, Zhong C, Li J, Liang X, Wang L, Yin H, Wang D, Li Y. Pd-Mn/NC Dual Single-Atomic Sites with Hollow Mesopores for the Highly Efficient Semihydrogenation of Phenylacetylene. J Am Chem Soc 2024; 146:2132-2140. [PMID: 38226630 DOI: 10.1021/jacs.3c11632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
The direct pyrolysis of metal-zeolite imidazolate frameworks (M-ZIFs) has been widely recognized as the predominant approach for synthesizing atomically dispersed metal-nitrogen-carbon single-atom catalysts (M/NC-SACs), which have exhibited exceptional activity and selectivity in the semihydrogenation of acetylene. However, due to weak adsorption of reactants on the single site and restricted molecular diffusion, the semihydrogenation of large organic molecules (e.g., phenylacetylene) was greatly limited for M/NC-SACs. In this work, a dual single-atom catalyst (h-Pd-Mn/NC) with hollow mesopores was designed and prepared using a general host-guest strategy. Taking the semihydrogenation of phenylacetylene as an example, this catalyst exhibited ultrahigh activity and selectivity, which achieved a turnover frequency of 218 molC═CmolPd-1 min-1, 16-fold higher than that of the commercial Lindlar catalyst. The catalyst maintained high activity and selectivity even after 5 cycles of usage. The superior activity of h-Pd-Mn/NC was attributed to the 4.0 nm mesopore interface of the catalyst, which enhanced the diffusion of macromolecular reactants and products. Particularly, the introduction of atomically dispersed Mn with weak electronegativity in h-Pd-Mn/NC could drive the electron transfer from Mn to adjacent Pd sites and regulate the electronic structure of Pd sites. Meanwhile, the strong electronic coupling in Pd-Mn pairs enhanced the d-electron domination near the Fermi level and promoted the adsorption of phenylacetylene and H2 on Pd active sites, thereby reducing the energy barrier for the semihydrogenation of phenylacetylene.
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Affiliation(s)
- Huan Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Peng Zhu
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Da Yang
- College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, P. R. China
| | - Congkun Zhong
- College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, P. R. China
| | - Jialu Li
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Xiao Liang
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Ligang Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Hang Yin
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
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Meng D, Xu M, Li S, Ganesan M, Ruan X, Ravi SK, Cui X. Functional MXenes: Progress and Perspectives on Synthetic Strategies and Structure-Property Interplay for Next-Generation Technologies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304483. [PMID: 37730973 DOI: 10.1002/smll.202304483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/11/2023] [Indexed: 09/22/2023]
Abstract
MXenes are a class of 2D materials that include layered transition metal carbides, nitrides, and carbonitrides. Since their inception in 2011, they have garnered significant attention due to their diverse compositions, unique structures, and extraordinary properties, such as high specific surface areas and excellent electrical conductivity. This versatility has opened up immense potential in various fields, catalyzing a surge in MXene research and leading to note worthy advancements. This review offers an in-depth overview of the evolution of MXenes over the past 5 years, with an emphasis on synthetic strategies, structure-property relationships, and technological prospects. A classification scheme for MXene structures based on entropy is presented and an updated summary of the elemental constituents of the MXene family is provided, as documented in recent literature. Delving into the microscopic structure and synthesis routes, the intricate structure-property relationships are explored at the nano/micro level that dictate the macroscopic applications of MXenes. Through an extensive review of the latest representative works, the utilization of MXenes in energy, environmental, electronic, and biomedical fields is showcased, offering a glimpse into the current technological bottlenecks, such asstability, scalability, and device integration. Moreover, potential pathways for advancing MXenes toward next-generation technologies are highlighted.
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Affiliation(s)
- Depeng Meng
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Minghua Xu
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Shijie Li
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Muthusankar Ganesan
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, SAR, Hong Kong
| | - Xiaowen Ruan
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, SAR, Hong Kong
| | - Sai Kishore Ravi
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, SAR, Hong Kong
| | - Xiaoqiang Cui
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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Song X, Shao F, Zhao Z, Li X, Wei Z, Wang J. Mg-modified Al2O3 regulates the supported Pd with Pd0/Pd2+ ratio for 2-butyn-l-ol semi-hydrogenation performance. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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