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Zhang M, Zhang Z, Wu F, Wang M, Yu X. Effective Bidirectional Mott-Schottky Catalysts Derived from Spent LiFePO 4 Cathodes for Robust Lithium-Sulfur Batteries. Small 2024:e2309146. [PMID: 38372004 DOI: 10.1002/smll.202309146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/06/2023] [Indexed: 02/20/2024]
Abstract
It is deemed as a tough yet profound project to comprehensively cope with a range of detrimental problems of lithium-sulfur batteries (LSBs), mainly pertaining to the shuttle effect of lithium polysulfides (LiPSs) and sluggish sulfur conversion. Herein, a Co2 P-Fe2 P@N-doped carbon (Co2 P-Fe2 P@NC) Mott-Schottky catalyst is introduced to enable bidirectionally stimulated sulfur conversion. This catalyst is prepared by simple carbothermal reduction of spent LiFePO4 cathode and LiCoO2 . The experimental and theoretical calculation results indicate that thanks to unique surface/interface properties derived from the Mott-Schottky effect, full anchoring of LiPSs, mediated Li2 S nucleation/dissolution, and bidirectionally expedited "solid⇌liquid⇌solid" kinetics can be harvested. Consequently, the S/Co2 P-Fe2 P@NC manifests high reversible capacity (1569.9 mAh g-1 ), superb rate response (808.9 mAh g-1 at 3C), and stable cycling (a low decay rate of 0.06% within 600 cycles at 3C). Moreover, desirable capacity (5.35 mAh cm-2 ) and cycle stability are still available under high sulfur loadings (4-5 mg cm-2 ) and lean electrolyte (8 µL mg-1 ) conditions. Furthermore, the as-proposed universal synthetic route can be extended to the preparation of other catalysts such as Mn2 P-Fe2 P@NC from spent LiFePO4 and MnO2 . This work unlocks the potential of carbothermal reduction phosphating to synthesize bidirectional catalysts for robust LSBs.
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Affiliation(s)
- Mengjie Zhang
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Zhongshuai Zhang
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Fang Wu
- Guangdong Fangyuan New Materials Group Co. Ltd., Jiangmen, 529145, China
| | - Mengxiao Wang
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaoyuan Yu
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, China
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Li N, Zhang L, Wang Y, Zhou S, Zhang Y, Abdukayum A, Jin Z, Zhang H, Hu G. Effect of in-plane Mott-Schottky on the hydroxyl deprotonation in MoS 2@Co 3S 4/NC heterostructure for efficient overall water splitting. J Colloid Interface Sci 2023; 649:125-131. [PMID: 37348331 DOI: 10.1016/j.jcis.2023.06.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
The development of clean energy sources such as hydrogen is indispensable for achieving the long-term goal of carbon neutrality by the mid-century. The utilization of renewable energy for power generation to electrolyze water for hydrogen production is one of the most desirable green hydrogen production methods. The cathode side of the decomposing water undergoes the oxygen precipitation reaction, and the oxygen precipitation mechanism can be divided into the adsorbed evolution mechanism (AEM) and lattice oxygen oxidation mechanism (LOM). Based on the adsorbed evolution mechanism (AEM), the deprotonation (DeP) process involving multiple electron transfers is central to determining the oxygen release. DeP is essentially a proton-transfer process that allows for the establishment of a bifunctional catalyst system with both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Consequently, an all-transition-metal-based MoS2@Co3S4/NC heterostructure was designed and constructed in this study for the efficient total decomposition of water. The MoS2@Co3S4/NC catalyst achieved the HER and OER current densities of 10 mA cm-2 at the low overpotential (56 mV, 243 mV) and showed excellent long-term durability among all samples. The Mott-Schottky effect is considered the driving force for the HER and DeP in the OER. This study proposes a rational design for bifunctionalized non-precious metal electrolytic water catalysts using the Mott-Schottky effect as a criterion.
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Affiliation(s)
- Nianpeng Li
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashgar, 844007, China; School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
| | - Lei Zhang
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
| | - Yin Wang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Shuxing Zhou
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China.
| | - Yu Zhang
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashgar, 844007, China
| | - Abdukader Abdukayum
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashgar, 844007, China.
| | - Zhong Jin
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashgar, 844007, China
| | - Hua Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; Donghai Laboratory, Zhoushan 316021, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; Donghai Laboratory, Zhoushan 316021, China.
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Jiang J, Wei W, Ren Z, Luo Y, Wang X, Xu Y, Chang M, Ai L. Facile construction of robust Ru-Co 3O 4 Mott-Schottky catalyst enabling efficient dehydrogenation of ammonia borane for hydrogen generation. J Colloid Interface Sci 2023; 646:25-33. [PMID: 37182256 DOI: 10.1016/j.jcis.2023.04.181] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/23/2023] [Accepted: 04/30/2023] [Indexed: 05/16/2023]
Abstract
Developing efficient catalysts for the dehydrogenation of ammonia borane (AB) is important for the safe storage and controlled release of hydrogen, but it is a challenging task. In this study, we designed a robust Ru-Co3O4 catalyst using the Mott-Schottky effect to induce favorable charge rearrangement. The self-created electron-rich Co3O4 and electron-deficient Ru sites at heterointerfaces are indispensable for the activation of the B-H bond in NH3BH3 and the OH bond in H2O, respectively. The synergistic electronic interaction between the electron-rich Co3O4 and electron-deficient Ru sites at the heterointerfaces resulted in an optimal Ru-Co3O4 heterostructure that exhibited outstanding catalytic activity for the hydrolysis of AB in the presence of NaOH. The heterostructure had an extremely high hydrogen generation rate (HGR) of 12238 mL min-1 gcat-1 and an expected high turnover frequency (TOF) of 755 molH2 molRu-1 min-1 at 298 K. The activation energy needed for the hydrolysis was low (36.65 kJ mol-1). This study opens up a new avenue for the rational design of high-performance catalysts for AB dehydrogenation based on the Mott-Schottky effect.
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Affiliation(s)
- Jing Jiang
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
| | - Wei Wei
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Zhen Ren
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Yang Luo
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Xinzhi Wang
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Ying Xu
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Mingming Chang
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
| | - Lunhong Ai
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
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Pi C, Li X, Zhang X, Song H, Zheng Y, Gao B, Kızılaslan A, Chu PK, Huo K. In-Plane Mott-Schottky Effects Enabling Efficient Hydrogen Evolution from Mo 5 N 6 -MoS 2 Heterojunction Nanosheets in Universal-pH Electrolytes. Small 2022; 18:e2201137. [PMID: 35527344 DOI: 10.1002/smll.202201137] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Cost-effective electrocatalysts for the hydrogen evolution reaction (HER) spanning a wide pH range are highly desirable but still challenging for hydrogen production via electrochemical water splitting. Herein, Mo5 N6 -MoS2 heterojunction nanosheets prepared on hollow carbon nanoribbons (Mo5 N6 -MoS2 /HCNRs) are designed as Mott-Schottky electrocatalysts for efficient pH-universal HER. The in-plane Mo5 N6 -MoS2 Mott-Schottky heterointerface induces electron redistribution and a built-in electric field, which effectively activates the inert MoS2 basal planes to intrinsically increase the electrocatalytic activity, improve electronic conductivity, and boost water dissociation activity. Moreover, the vertical Mo5 N6 -MoS2 nanosheets provide more activated sites for the electrochemical reaction and facilitate mass/electrolyte transport, while the tightly coupled HCNRs substrate and metallic Mo5 N6 provide fast electron transfer paths. Consequently, the Mo5 N6 -MoS2 /HCNRs electrocatalyst delivers excellent pH-universal HER performances exemplified by ultralow overpotentials of 57, 59, and 53 mV at a current density of 10 mA cm-2 in acidic, neutral, and alkaline electrolytes with Tafel slopes of 38.4, 43.5, and 37.9 mV dec-1 , respectively, which are superior to those of the reported MoS2 -based catalysts and outperform Pt in overall water splitting. This work proposes a new strategy to construct an in-plane heterointerface on the nanoscale and provides fresh insights into the HER electrocatalytic mechanism of MoS2 -based heterostructures.
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Affiliation(s)
- Chaoran Pi
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Xingxing Li
- College of Architecture and Materials Engineering, Hubei University of Education, Gaoxin Road 129, Wuhan, 430205, P. R. China
| | - Xuming Zhang
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Hao Song
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Yang Zheng
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Abdulkadir Kızılaslan
- Department of Metallurgy and Materials Science, Sakarya University, Sakarya, 54050, Turkey
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Kaifu Huo
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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5
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Abstract
Numerous efforts have been devoted to investigating the catalytic events and disclosing the catalytic nature of the metal-carbon interaction interface. Nevertheless, the local deconstruction of catalytically active metal-carbon interface was still missing. Herein, the selected four types of landmark catalytic paradigms were highlighted, which was expected to clarify their essence and thus simplify the catalytic scenarios of the metal-carbon interface—carbon-supported metal nanoparticles, carbon-confined single-atom sites, chainmail catalysis, and the Mott-Schottky effect. The potential challenges and new opportunities were also proposed in the field. This perspective is believed to give an in-depth understanding of the catalytic nature of the metal-carbon interaction interface and in turn provide rational guidance to the delicate design of novel high-performance carbon-supported metal catalysts.
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Affiliation(s)
- Liwen Xing
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Yujuan Jin
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China.,Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, China
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China.,Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, China
| | - Yongjun Ji
- School of Light Industry, Beijing Technology and Business University, Beijing, China
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Huang Y, Yan H, Zhang C, Wang Y, Wei Q, Zhang R. Interfacial Electronic Effects in Co@N-Doped Carbon Shells Heterojunction Catalyst for Semi-Hydrogenation of Phenylacetylene. Nanomaterials (Basel) 2021; 11:2776. [PMID: 34835542 DOI: 10.3390/nano11112776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 11/30/2022]
Abstract
Metal-supported catalyst with high activity and relatively simple preparation method is given priority to industrial production. In this work, this study reported an easily accessible synthesis strategy to prepare Mott-Schottky-type N-doped carbon encapsulated metallic Co (Co@Np+gC) catalyst by high-temperature pyrolysis method in which carbon nitride (g-C3N4) and dopamine were used as support and nitrogen source. The prepared Co@Np+gC presented a Mott-Schottky effect; that is, a strong electronic interaction of metallic Co and N-doped carbon shell was constructed to lead to the generation of Mott-Schottky contact. The metallic Co, due to high work function as compared to that of N-doped carbon, transferred electrons to the N-doped outer shell, forming a new contact interface. In this interface area, the positive and negative charges were redistributed, and the catalytic hydrogenation mainly occurred in the area of active charges. The Co@Np+gC catalyst showed excellent catalytic activity in the hydrogenation of phenylacetylene to styrene, and the selectivity of styrene reached 82.4%, much higher than those of reference catalysts. The reason for the promoted semi-hydrogenation of phenylacetylene was attributed to the electron transfer of metallic Co, as it was caused by N doping on carbon.
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Wang HH, Zhang SN, Zhao TJ, Liu YX, Liu X, Su J, Li XH, Chen JS. Mild and selective hydrogenation of CO 2 into formic acid over electron-rich MoC nanocatalysts. Sci Bull (Beijing) 2020; 65:651-657. [PMID: 36659134 DOI: 10.1016/j.scib.2020.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/08/2020] [Accepted: 02/04/2020] [Indexed: 01/21/2023]
Abstract
The direct hydrogenation of CO2 using H2 gas is a one-stone-two-birds route to produce highly value-added hydrocarbon compounds and to lower the CO2 level in the atmosphere. However, the transformation of CO2 and H2 into hydrocarbons has always been a great challenge while ensuring both the activity and selectivity over abundant-element-based nanocatalysts. In this work, we designed a Schottky heterojunction composed of electron-rich MoC nanoparticles embedded inside an optimized nitrogen-doped carbon support (MoC@NC) as the first example of noble-metal-free heterogeneous catalysts to boost the activity of and specific selectivity for CO2 hydrogenation to formic acid (FA) in liquid phase under mild conditions (2 MPa pressure and 70 °C). The MoC@NC catalyst with a high turnover frequency (TOF) of 8.20 molFA molMoC-1 h-1 at 140 °C and an excellent reusability are more favorable for real applications.
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Affiliation(s)
- Hong-Hui Wang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shi-Nan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tian-Jian Zhao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong-Xing Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; SynCat@Beijing, Synfuels China Technology Co., Ltd, Beijing 101407, China
| | - Juan Su
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Xin-Hao Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Jie-Sheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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