1
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He J, Chen S, Ma Z, Wang M, He Q. Spatial Identification of Mott-Schottky Effect at Electrocatalytic Pd/Metal Oxide Interfaces for the Oxygen Reduction Reaction. ACS NANO 2024; 18:24283-24294. [PMID: 39163576 DOI: 10.1021/acsnano.4c06049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
To elucidate the microstructure and charge transfer behavior at the interface of Pd/metal oxide semiconductor (MOS) catalysts and systematically explore the crucial role of the Mott-Schottky effect in the oxygen reduction reaction (ORR) electrocatalysis process, this study established a testing system for spatially identifying Mott-Schottky effects and electronic properties at Pd/MOS interfaces, leveraging highly sensitive Kelvin probe force microscopy (KPFM). This system enabled visualization and quantification of the surface potential difference and Mott-Schottky barrier height (ΦSBH) at the Pd/MOS heterojunction interfaces. Furthermore, a series of Pd/MOS Mott-Schottky catalysts were constructed based on differences in work functions between Pd and n-type MOS. The abundant oxygen vacancies in these catalysts facilitated the adsorption and activation of oxygen molecules. Notably, the intensity of the built-in electric field in the Pd/MOS Mott-Schottky catalysts was calculated through surface potential and zeta potential analysis, systematically correlating the Mott-Schottky effect at the heterojunction interface of Pd/MOS with ORR activity and kinetics. By comprehensively exploring the correlation between the Mott-Schottky effect and ORR performance in Pd/MOS catalysts using the KPFM testing system, this study provides necessary tools and approaches for a deep understanding of heterogeneous interface charge transfer mechanisms, as well as for optimizing catalyst design and enhancing ORR performance.
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Affiliation(s)
- Jing He
- College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Shiyuan Chen
- Zhejiang Province key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Zhuang Ma
- College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Miao Wang
- Zhejiang Province key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Qinggang He
- College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou, Zhejiang 310027, China
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2
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Ren Y, Xu H, Han B, Xu J. Construction of N-Doped Carbon-Modified Ni/SiO 2 Catalyst Promoting Cinnamaldehyde Selective Hydrogenation. Molecules 2023; 28:molecules28104136. [PMID: 37241877 DOI: 10.3390/molecules28104136] [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: 03/28/2023] [Revised: 05/07/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
At present, the selective hydrogenation of α, β-unsaturated aldehydes remains a challenge due to competition between unsaturated functional groups (C=C and C=O). In this study, N-doped carbon deposited on silica-supported nickel Mott-Schottky type catalysts (Ni/SiO2@NxC) was prepared for the selective hydrogenation of cinnamaldehyde (CAL) by using the respective hydrothermal method and high-temperature carbonization method. The prepared optimal Ni/SiO2@N7C catalyst achieved 98.9% conversion and 83.1% selectivity for 3-phenylpropionaldehyde (HCAL) in the selective hydrogenation reaction of CAL. By constructing the Mott-Schottky effect, the electron transfer from metallic Ni to N-doped carbon at their contact interface was promoted, and the electron transfer was demonstrated by XPS and UPS. Experimental results indicated that by modulating the electron density of metallic Ni, the catalytic hydrogenation of C=C bonds was preferentially performed to obtain higher HCAL selectivity. Meanwhile, this work also provides an effective way to design electronically adjustable type catalysts for more selective hydrogenation reactions.
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Affiliation(s)
- Yongwang Ren
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Huizhong Xu
- SGS-CSTC Standards Technical Services Co., Ltd., Shanghai 201205, China
| | - Beibei Han
- Zhejiang Tianyuan Fabric Co., Ltd., Wenling 317513, China
| | - Jing Xu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan 316022, China
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3
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Chen S, Li X, Kao C, Luo T, Chen K, Fu J, Ma C, Li H, Li M, Chan T, Liu M. Unveiling the Proton‐Feeding Effect in Sulfur‐Doped Fe−N−C Single‐Atom Catalyst for Enhanced CO
2
Electroreduction. Angew Chem Int Ed Engl 2022; 61:e202206233. [DOI: 10.1002/anie.202206233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Shanyong Chen
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
- Guangdong Key Laboratory of Environmental Pollution and Health School of Environment Jinan University Guangzhou 511443 China
| | - Xiaoqing Li
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
| | - Cheng‐Wei Kao
- National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan
| | - Tao Luo
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
| | - Kejun Chen
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
| | - Junwei Fu
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
| | - Chao Ma
- School of Materials Science and Engineering Hunan University Changsha 410082 China
| | - Hongmei Li
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
- School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China
| | - Ming Li
- College of Science & Ministry-province jointly-constructed Cultivation Base for State Key Laboratory of Processing for Mom-ferrous Metal and Featured Materials & Key Lab. of Nonferrous Materials and New Processing Technology Guilin University of Technology Guilin 541004 China
| | - Ting‐Shan Chan
- National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan
| | - Min Liu
- Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder Metallurgy School of Physical and Electronics Central South University Changsha 410083 China
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4
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Chen S, Li X, Kao CW, Luo T, Chen K, Fu J, Ma C, Li H, Li M, Chan TS, Liu M. Unveiling Proton‐feeding Effect in Sulfur‐doped Fe‐N‐C Single‐Atom Catalyst for Enhanced CO2 Electroreduction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shanyong Chen
- Central South University School of Physical and Electronics 410083 Changsha CHINA
| | - Xiaoqing Li
- Central South University School of Physical and Electronics 410083 Changsha CHINA
| | - Cheng-Wei Kao
- National Synchrotron Radiation Research Center National Synchrotron Radiation Research Center 30076 Taiwan TAIWAN
| | - Tao Luo
- Central South University School of Physical and Electronics 410083 Changsha CHINA
| | - Kejun Chen
- Central South University School of Physical and Electronics 410083 Changsha CHINA
| | - Junwei Fu
- Central South University School of Physical and Electronics 410083 Changsha CHINA
| | - Chao Ma
- Hunan University School of Materials Science and Engineering 410082 Changsha CHINA
| | - Hongmei Li
- Zhengzhou University School of Materials Science and Engineering 450001 Zhengzhou CHINA
| | - Ming Li
- Guilin University of Technology College of Science 541004 Guilin CHINA
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center National Synchrotron Radiation Research Center 30076 Taiwan TAIWAN
| | - Min Liu
- Central South University School of Physics and Electronics 932 Lushan Nan Road 410081 Changsha CHINA
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5
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Gao P, Xue ZH, Zhang SN, Xu D, Zhai GY, Li QY, Chen JS, Li XH. Schottky Barrier-Induced Surface Electric Field Boosts Universal Reduction of NO x - in Water to Ammonia. Angew Chem Int Ed Engl 2021; 60:20711-20716. [PMID: 34313361 DOI: 10.1002/anie.202107858] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/06/2021] [Indexed: 11/07/2022]
Abstract
NOx - reduction acts a pivotal part in sustaining globally balanced nitrogen cycle and restoring ecological environment, ammonia (NH3 ) is an excellent energy carrier and the most valuable product among all the products of NOx - reduction reaction, the selectivity of which is far from satisfaction due to the intrinsic complexity of multiple-electron NOx - -to-NH3 process. Here, we utilize the Schottky barrier-induced surface electric field, by the construction of high density of electron-deficient Ni nanoparticles inside nitrogen-rich carbons, to facilitate the enrichment and fixation of all NOx - anions on the electrode surface, including NO3 - and NO2 - , and thus ensure the final selectivity to NH3 . Both theoretical and experimental results demonstrate that NOx - anions were continuously captured by the electrode with largely enhanced surface electric field, providing excellent Faradaic efficiency of 99 % from both electrocatalytic NO3 - and NO2 - reduction. Remarkably, the NH3 yield rate could reach the maximum of 25.1 mg h-1 cm-2 in electrocatalytic NO2 - reduction reaction, outperforming the maximum in the literature by a factor of 6.3 in neutral solution. With the universality of our electrocatalyst, all sorts of available electrolytes containing NOx - pollutants, including seawater or wastewater, could be directly used for ammonia production in potential through sustainable electrochemical technology.
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Affiliation(s)
- Peng Gao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Zhong-Hua Xue
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.,Department of Applied Chemistry, Anhui Agricultural University, Hefei, 230036, P. R. China
| | - Shi-Nan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Dong Xu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Guang-Yao Zhai
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Qi-Yuan Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jie-Sheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xin-Hao Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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6
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Gao P, Xue Z, Zhang S, Xu D, Zhai G, Li Q, Chen J, Li X. Schottky Barrier‐Induced Surface Electric Field Boosts Universal Reduction of NO
x
−
in Water to Ammonia. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107858] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Peng Gao
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Zhong‐Hua Xue
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
- Department of Applied Chemistry Anhui Agricultural University Hefei 230036 P. R. China
| | - Shi‐Nan Zhang
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Dong Xu
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Guang‐Yao Zhai
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Qi‐Yuan Li
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Jie‐Sheng Chen
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Xin‐Hao Li
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
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7
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Lin X, Zhang SN, Xu D, Zhang JJ, Lin YX, Zhai GY, Su H, Xue ZH, Liu X, Antonietti M, Chen JS, Li XH. Electrochemical activation of C-H by electron-deficient W 2C nanocrystals for simultaneous alkoxylation and hydrogen evolution. Nat Commun 2021; 12:3882. [PMID: 34162882 PMCID: PMC8222219 DOI: 10.1038/s41467-021-24203-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022] Open
Abstract
The activation of C-H bonds is a central challenge in organic chemistry and usually a key step for the retro-synthesis of functional natural products due to the high chemical stability of C-H bonds. Electrochemical methods are a powerful alternative for C-H activation, but this approach usually requires high overpotential and homogeneous mediators. Here, we design electron-deficient W2C nanocrystal-based electrodes to boost the heterogeneous activation of C-H bonds under mild conditions via an additive-free, purely heterogeneous electrocatalytic strategy. The electron density of W2C nanocrystals is tuned by constructing Schottky heterojunctions with nitrogen-doped carbon support to facilitate the preadsorption and activation of benzylic C-H bonds of ethylbenzene on the W2C surface, enabling a high turnover frequency (18.8 h-1) at a comparably low work potential (2 V versus SCE). The pronounced electron deficiency of the W2C nanocatalysts substantially facilitates the direct deprotonation process to ensure electrode durability without self-oxidation. The efficient oxidation process also boosts the balancing hydrogen production from as-formed protons on the cathode by a factor of 10 compared to an inert reference electrode. The whole process meets the requirements of atomic economy and electric energy utilization in terms of sustainable chemical synthesis.
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Affiliation(s)
- Xiu Lin
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shi-Nan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Dong Xu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jun-Jun Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yun-Xiao Lin
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Guang-Yao Zhai
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Su
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhong-Hua Xue
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Markus Antonietti
- Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, Potsdam, Germany
| | - Jie-Sheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xin-Hao Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China.
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8
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Lu X, Wu K, Zhang B, Chen J, Li F, Su B, Yan P, Chen J, Qi W. Highly Efficient Electro‐reforming of 5‐Hydroxymethylfurfural on Vertically Oriented Nickel Nanosheet/Carbon Hybrid Catalysts: Structure–Function Relationships. Angew Chem Int Ed Engl 2021; 60:14528-14535. [DOI: 10.1002/anie.202102359] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/17/2021] [Indexed: 12/30/2022]
Affiliation(s)
- Xingyu Lu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Kuang‐Hsu Wu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
- School of Chemical Engineering The University of New South Wales Sydney, Kensington NSW 2052 Australia
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Junnan Chen
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Fan Li
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Bing‐Jian Su
- National Synchrotron Radiation Research Center Hsinchu (Taiwan), R.O.C. 30076 China
| | - Pengqiang Yan
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Jin‐Ming Chen
- National Synchrotron Radiation Research Center Hsinchu (Taiwan), R.O.C. 30076 China
| | - Wei Qi
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
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9
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Lu X, Wu K, Zhang B, Chen J, Li F, Su B, Yan P, Chen J, Qi W. Highly Efficient Electro‐reforming of 5‐Hydroxymethylfurfural on Vertically Oriented Nickel Nanosheet/Carbon Hybrid Catalysts: Structure–Function Relationships. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xingyu Lu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Kuang‐Hsu Wu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
- School of Chemical Engineering The University of New South Wales Sydney, Kensington NSW 2052 Australia
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Junnan Chen
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Fan Li
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Bing‐Jian Su
- National Synchrotron Radiation Research Center Hsinchu (Taiwan), R.O.C. 30076 China
| | - Pengqiang Yan
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
| | - Jin‐Ming Chen
- National Synchrotron Radiation Research Center Hsinchu (Taiwan), R.O.C. 30076 China
| | - Wei Qi
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang Liaoning 110016 China
- School of Materials Science and Engineering University of Science and Technology of China Shenyang Liaoning 110016 China
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10
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Liang Z, Zhou W, Gao S, Zhao R, Zhang H, Tang Y, Cheng J, Qiu T, Zhu B, Qu C, Guo W, Wang Q, Zou R. Fabrication of Hollow CoP/TiO x Heterostructures for Enhanced Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905075. [PMID: 31814261 DOI: 10.1002/smll.201905075] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Transition-metal phosphides have flourished as promising candidates for oxygen evolution reaction (OER) electrocatalysts. Herein, it is demonstrated that the electrocatalytic OER performance of CoP can be greatly improved by constructing a hybrid CoP/TiOx heterostructure. The CoP/TiOx heterostructure is fabricated using metal-organic framework nanocrystals as templates, which leads to unique hollow structures and uniformly distributed CoP nanoparticles on TiOx . The strong interactions between CoP and TiOx in the CoP/TiOx heterostructure and the conductive nature of TiOx with Ti3+ sites endow the CoP-TiOx hybrid material with high OER activity comparable to the state-of-the-art IrO2 or RuO2 OER electrocatalysts. In combination with theoretical calculations, this work reveals that the formation of CoP/TiOx heterostructure can generate a pathway for facile electron transport and optimize the water adsorption energy, thus promoting the OER electrocatalysis.
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Affiliation(s)
- Zibin Liang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Wenyang Zhou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Song Gao
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ruo Zhao
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Hao Zhang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yanqun Tang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jinqian Cheng
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Tianjie Qiu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Bingjun Zhu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Chong Qu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Wenhan Guo
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Qian Wang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
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11
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Li X, Pan Y, Yi H, Hu J, Yang D, Lv F, Li W, Zhou J, Wu X, Lei A, Zhang L. Mott–Schottky Effect Leads to Alkyne Semihydrogenation over Pd-Nanocube@N-Doped Carbon. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01001] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xingxing Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Yu Pan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information & Quantum Technology, School of Chemistry and Materials Sciences, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Hong Yi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Jingcheng Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Dali Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Fengzhi Lv
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Wendian Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Jinping Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Xiaojun Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information & Quantum Technology, School of Chemistry and Materials Sciences, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
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12
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Guo H, Gao R, Sun M, Guo H, Wang B, Chen L. Cobalt Entrapped in N,S-Codoped Porous Carbon: Catalysts for Transfer Hydrogenation with Formic Acid. CHEMSUSCHEM 2019; 12:487-494. [PMID: 30350471 DOI: 10.1002/cssc.201802392] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Indexed: 06/08/2023]
Abstract
Catalysts with Co nanoparticles (NPs) entrapped in N,S-codoped carbon shells were successfully fabricated by pyrolysis of porous organic polymers (POPs) with cobalt salts. The encapsulated structure consisting of Co NPs and N,S-codoped carbon layers was verified by TEM, XRD, and X-ray photoelectron spectroscopy. The catalysts displayed excellent activity and stability for the catalytic transfer hydrogenation (CTH) of nitrobenzene with formic acid under base-free conditions. Furthermore, the resultant catalysts allowed for highly efficient and selective transfer hydrogenation of various functionalized nitroarenes to the corresponding anilines. Through control experiments, the covered Co NPs were identified as active sites for CTH. The incorporation of S into the N-doped carbon lattice promoted the electron transfer from metallic cobalt NPs to their shells, which played a significant role in the acceleration of CTH. Moreover, the Co-NSPC-850 catalyst pyrolyzed at 850 °C showed excellent stability in the recycling experiments.
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Affiliation(s)
- Haotian Guo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Ruixiao Gao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Mingming Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Hao Guo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Bowei Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, P. R. China
| | - Ligong Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, P. R. China
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Lu H, Zhang Y, Huang Y, Zhang C, Liu T. Reaction Packaging CoSe 2 Nanoparticles in N-Doped Carbon Polyhedra with Bifunctionality for Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3372-3381. [PMID: 30586290 DOI: 10.1021/acsami.8b20184] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Water electrolysis is a promising approach for green and large-scale hydrogen production; however, there are still challenges for developing efficient and stable bifunctional electrocatalysts toward the hydrogen and oxygen evolution reactions. Herein, zeolitic imidazolate framework-67 was used as the precursor for the construction of CoSe2 nanoparticles trapped in N-doped carbon (NC) polyhedra. Among as-obtained CoSe2-NC hybrid, highly active CoSe2 nanoparticles in sizes of 10-20 nm are encapsulated in N-doped few-layer carbon shell, avoiding their easy aggregations of CoSe2 nanoparticles as well as enhancing the long-term stability. The unique nanostructured CoSe2-NC hybrid with a hierarchical porosity and 3D conductive framework thus fully exerts outstanding bifunctional catalytic activity of CoSe2 centers. As a result, the CoSe2-NC hybrid as bifunctional catalysts for overall water splitting delivers a high current density of 50 mA cm-2 with an applied voltage of ∼1.73 V in an alkaline electrolyte, with a promising stability over 50 000 s.
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Affiliation(s)
- Hengyi Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology , Donghua University , Shanghai 201620 , P. R. China
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200433 , P. R. China
| | - Youfang Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology , Donghua University , Shanghai 201620 , P. R. China
| | - Yunpeng Huang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200433 , P. R. China
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology , Donghua University , Shanghai 201620 , P. R. China
| | - Tianxi Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology , Donghua University , Shanghai 201620 , P. R. China
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200433 , P. R. China
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