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Hu Y, Zhou W, Gong W, Gao C, Shen S, Kong T, Xiong Y. Tailoring Second Coordination Sphere for Tunable Solid-Liquid Interfacial Charge Transfer toward Enhanced Photoelectrochemical H 2 Production. Angew Chem Int Ed Engl 2024:e202403520. [PMID: 38446498 DOI: 10.1002/anie.202403520] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/07/2024]
Abstract
The recombination of photogenerated charge carriers severely limits the performance of photoelectrochemical (PEC) H2 production. Here, we demonstrate that this limitation can be overcome by optimizing the charge transfer dynamics at the solid-liquid interface via molecular catalyst design. Specifically, the surface of a p-Si photocathode is modulated using molecular catalysts with different metal atoms and organic ligands to improve H2 production performance. Co(pda-SO3H)2 is identified as an efficient and durable catalyst for H2 production through the rational design of metal centers and first/second coordination spheres. The modulation with Co(pda-SO3H)2, which contains an electron-withdrawing -SO3H group in the second coordination sphere, elevates the flat-band potential of the polished p-Si photocathode and nanoporous p-Si photocathode by 81 mV and 124 mV, respectively, leading to the maximized energy band bending and the minimized interfacial carrier transport resistance. Consequently, both the two photocathodes achieve the Faradaic efficiency of more than 95 % for H2 production, which is well maintained during 18 h and 21 h reaction, respectively. This work highlights that the band-edge engineering by molecular catalysts could be an important design consideration for semiconductor-catalyst hybrids toward PEC H2 production.
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Affiliation(s)
- Yangguang Hu
- Anhui Engineering Research Center of Carbon Neutrality, The Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, 241002, Wuhu, Anhui, China
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Wu Zhou
- International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, Xi'an, Shaanxi, China
| | - Wanbing Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
| | - Shaohua Shen
- International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, Xi'an, Shaanxi, China
| | - Tingting Kong
- Anhui Engineering Research Center of Carbon Neutrality, The Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, 241002, Wuhu, Anhui, China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, 230026, Hefei, Anhui, China
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Zhang X, Eurelings S, Bracesco A, Song W, Lenaers S, Van Gompel W, Krishna A, Aernouts T, Lutsen L, Vanderzande D, Creatore M, Zhan Y, Kuang Y, Poortmans J. Surface Modulation via Conjugated Bithiophene Ammonium Salt for Efficient Inverted Perovskite Solar Cells. ACS Appl Mater Interfaces 2023; 15:46803-46811. [PMID: 37755314 DOI: 10.1021/acsami.3c08119] [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] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
The metal halide perovskite absorbers are prone to surface defects, which severely limit the power conversion efficiencies (PCEs) and the operational stability of the perovskite solar cells (PSCs). Herein, trace amounts of bithiophene propylammonium iodide (bi-TPAI) are applied to modulate the surface properties of the gas-quenched perovskite. It is found that the bi-TPAI surface treatment has negligible impact on the perovskite morphology, but it can induce a defect passivation effect and facilitate the charge carrier extraction, contributing to the gain in the open-circuit voltage (Voc) and fill factor. As a result, the PCE of the gas-quenched sputtered NiOx-based inverted PSCs is enhanced from the initial 20.0% to 22.0%. Most importantly, the bi-TPAI treatment can largely alleviate or even eliminate the burn-in process during the maximum power point tracking measurement, improving the operational stability of the devices.
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Affiliation(s)
- Xin Zhang
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Handan 220, Shanghai 200433, China
- Academy for Engineering & Technology (FAET), Fudan University, Handan 220, Shanghai 200433, China
- Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10, Leuven 3001, Belgium
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
| | - Stijn Eurelings
- Plasma & Materials Processing, Department of Applied Physics and Science of Education, Eindhoven University of Technology (TU/e), P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Andrea Bracesco
- Plasma & Materials Processing, Department of Applied Physics and Science of Education, Eindhoven University of Technology (TU/e), P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Wenya Song
- Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10, Leuven 3001, Belgium
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Stijn Lenaers
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Wouter Van Gompel
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Anurag Krishna
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Tom Aernouts
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Laurence Lutsen
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Dirk Vanderzande
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Mariadriana Creatore
- Plasma & Materials Processing, Department of Applied Physics and Science of Education, Eindhoven University of Technology (TU/e), P.O. Box 513, Eindhoven 5600 MB, The Netherlands
- Eindhoven Institute of Renewable Energy Systems (EIRES), Eindhoven 5600 MB, The Netherlands
| | - Yiqiang Zhan
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Handan 220, Shanghai 200433, China
- Academy for Engineering & Technology (FAET), Fudan University, Handan 220, Shanghai 200433, China
| | - Yinghuan Kuang
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Jef Poortmans
- Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10, Leuven 3001, Belgium
- Imec, imo-imomec, Thin Film PV Technology-partner in Solliance, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
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Wang X, Zhang D, Liu B, Wu X, Jiang X, Zhang S, Wang Y, Gao D, Wang L, Wang H, Huang Z, Xie X, Chen T, Xiao Z, He Q, Xiao S, Zhu Z, Yang S. Highly Efficient Perovskite/Organic Tandem Solar Cells Enabled by Mixed-Cation Surface Modulation. Adv Mater 2023:e2305946. [PMID: 37547965 DOI: 10.1002/adma.202305946] [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: 06/20/2023] [Revised: 07/25/2023] [Indexed: 08/08/2023]
Abstract
Perovskite/organic tandem solar cells (POTSCs) are gaining attention due to their easy fabrication, potential to surpass the S-Q limit, and superior flexibility. However, the low power conversion efficiencies (PCEs) of wide bandgap (Eg) perovskite solar cells (PVSCs) have hindered their development. This work presents a novel and effective mixed-cation passivation strategy (CE) to passivate various types of traps in wide-Eg perovskite. The complementary effect of 4-trifluoro phenethylammonium (CF3 -PEA+ , denoted as CA+ ) and ethylenediammonium (EDA2+ , denoted as EA2+ ) reduces both electron/hole defect densities and non-radiative recombination rate, resulting in a record open-circuit voltage (Voc ) of wide-Eg PVSCs (1.35 V) and a high fill factor (FF) of 83.29%. These improvements lead to a record PCE of 24.47% when applied to fabricated POTSCs, the highest PCE to date. Furthermore, unencapsulated POTSCs exhibit excellent photo and thermal stability, retaining over 90% of their initial PCE after maximum power point (MPP) tracking or exposure to 60 °C for 500 h. These findings imply that the synergic effect of surface passivators is a promising strategy to achieve high-efficiency and stable wide-Eg PVSCs and corresponding POTSCs.
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Affiliation(s)
- Xue Wang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Center for Advanced Material Diagnostic Technology and College of Engineering Physics, Shenzhen Technology University, Shenzhen, 518118, China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Dong Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Baoze Liu
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Xin Wu
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Xiaofen Jiang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Shoufeng Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Yan Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Danpeng Gao
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Lina Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Haolin Wang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Zongming Huang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiangfan Xie
- Center for Advanced Material Diagnostic Technology and College of Engineering Physics, Shenzhen Technology University, Shenzhen, 518118, China
| | - Tao Chen
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Zhengguo Xiao
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Shuang Xiao
- Center for Advanced Material Diagnostic Technology and College of Engineering Physics, Shenzhen Technology University, Shenzhen, 518118, China
| | - Zonglong Zhu
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, Guangdong, 518057, China
| | - Shangfeng Yang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
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4
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Qi MY, Zhang SD, Guo S, Ji PX, Mao JJ, Wu TT, Lu SQ, Zhang X, Chen SG, Su D, Chen GH, Cao AM. Integrated Surface Modulation of Ultrahigh Ni Cathode Materials for Improved Battery Performance. Small Methods 2023:e2300280. [PMID: 37086111 DOI: 10.1002/smtd.202300280] [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: 03/02/2023] [Indexed: 05/03/2023]
Abstract
Ni-rich layered cathodes with ultrahigh nickel content (≥90%), for example LiNi0.9 Co0.1 O2 (NC0.9), are promising for next-generation high-energy Li-ion batteries (LIBs), but face stability issues related to structural degradation and side reactions during the electrochemical process. Here, surface modulation is demonstrated by integrating a Li+ -conductive nanocoating and gradient lattice doping to stabilize the active cathode efficiently for extended cycles. Briefly, a wet-chemistry process is developed to deposit uniform ZrO(OH)2 nanoshells around Ni0.905 Co0.095 (OH)2 (NC0.9-OH) hydroxide precursors, followed by high temperature lithiation to create reinforced products featuring Zr doping in the crust lattice decorated with Li2 ZrO3 nanoparticles on the surface. It is identified that the Zr4+ infiltration reconstructed the surface lattice into favorable characters such as Li+ deficiency and Ni3+ reduction, which are effective to combat side reactions and suppress phase degradation and crack formation. This surface control is able to achieve an optimized balance between surface stabilization and charge transfer, resulting in an extraordinary capacity retention of 96.6% after 100 cycles at 1 C and an excellent rate capability of 148.8 mA h g-1 at 10 C. This study highlights the critical importance of integrated surface modulation for high stability of cathode materials in next-generation LIBs.
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Affiliation(s)
- Mu-Yao Qi
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Si-Dong Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Sijie Guo
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Peng-Xiang Ji
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Jian-Jun Mao
- Department of Chemistry, The University of Hong Kong, Hong Kong, SAR, 999077, P. R. China
- Hong Kong Quantum AI Lab Limited, Hong Kong, SAR, 999077, P. R. China
| | - Ting-Ting Wu
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Advanced Material Processing & Mold (Ministry of Education), Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Si-Qi Lu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Xing Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Shu-Guang Chen
- Department of Chemistry, The University of Hong Kong, Hong Kong, SAR, 999077, P. R. China
- Hong Kong Quantum AI Lab Limited, Hong Kong, SAR, 999077, P. R. China
| | - Dong Su
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Guan-Hua Chen
- Department of Chemistry, The University of Hong Kong, Hong Kong, SAR, 999077, P. R. China
- Hong Kong Quantum AI Lab Limited, Hong Kong, SAR, 999077, P. R. China
| | - An-Min Cao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
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5
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Xu K, Wang B, Si C, Lin C, Zheng R, Zheng Y. Surface Modulation of Graphene Oxide for Amidase Immobilization with High Loadings for Efficient Biocatalysis. Biomolecules 2021; 11:1399. [PMID: 34680032 DOI: 10.3390/biom11101399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022] Open
Abstract
As a type of important and versatile biocatalyst, amidase immobilization on solid materials has received broad attention with its relatively easy procedure and available reusability. However, current porous supports have suffered from limited loadings, and it is highly desired to develop a new type of material with abundant space so as to ensure a high loading of amidase. Here, graphene oxide was adopted as the support for amidase immobilization, which showed the highest loading capacity for amidase (~3000 mg/g) to date. To the best of our knowledge, it is the first case of amidase immobilized on graphene oxide. Through surface modulation via reducing the contents of oxygen-containing functional groups, activity recovery of immobilized amidase increased from 67.8% to 85.3%. Moreover, surface-modulated graphene oxide can efficiently uptake amidase under a wide range of pH, and the maximum loading can reach ~3500 mg/g. The resultant biocomposites exhibit efficient biocatalytic performance for asymmetric synthesis of a chiral amino acid (i.e., L-4-fluorophenylglycine, an intermediate of aprepitant).
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Wu X, Zhang H, Zhang J, Lou XWD. Recent Advances on Transition Metal Dichalcogenides for Electrochemical Energy Conversion. Adv Mater 2021; 33:e2008376. [PMID: 34405909 DOI: 10.1002/adma.202008376] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 04/11/2021] [Indexed: 06/13/2023]
Abstract
Transition metal dichalcogenides (TMDCs) hold great promise for electrochemical energy conversion technologies in view of their unique structural features associated with the layered structure and ultrathin thickness. Because the inert basal plane accounts for the majority of a TMDC's bulk, activation of the basal plane sites is necessary to fully exploit the intrinsic potential of TMDCs. Here, recent advances on TMDCs-based hybrids/composites with greatly enhanced electrochemical activity are reviewed. After a summary of the synthesis of TMDCs with different sizes and morphologies, comprehensive in-plane activation strategies are described in detail, mainly including in-plane-modification-induced phase transformation, surface-layer modulation, and interlayer modification/coupling. Simultaneously, the underlying mechanisms for improved electrochemical activities are highlighted. Finally, the strategic evaluation on further research directions of TMDCs in-plane activation is featured. This work would shed some light on future design trends of TMDCs-based functional materials for electrochemical energy-related applications.
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Affiliation(s)
- Xin Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
- KAUST Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Huabin Zhang
- KAUST Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Xiong Wen David Lou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
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Kim O, Kwon J, Kim S, Xu B, Seo K, Park C, Do W, Bae J, Kang S. Effect of PVP-Capped ZnO Nanoparticles with Enhanced Charge Transport on the Performance of P3HT/PCBM Polymer Solar Cells. Polymers (Basel) 2019; 11:polym11111818. [PMID: 31694327 PMCID: PMC6918335 DOI: 10.3390/polym11111818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 11/17/2022] Open
Abstract
We attempted surface modification in ZnO nanoparticles (NPs) synthesized by the sol–gel process with polyvinyl pyrrolidone (PVP) applied to bulk-heterojunction polymer solar cells (PSCs) as an electron transport layer (ETL). In general, ZnO NPs have trap sites due to oxygen vacancies which capture electrons and degrade the performance of the PSCs. Devices with six different PVP:Zn ratios (0.615 g, 1.230 g, 1.846 g, 2.460 g, 3.075 g, and 3.690 g) were fabricated for surface modification, and the optimized PVP:Zn ratio (2.460 g) was found for PSCs based on P3HT/PCBM. The power conversion efficiency (PCE) of the fabricated PSCs with PVP-capped ZnO exhibited a significant increase of approximately 21% in PCE and excellent air-stability as compared with the uncapped ZnO-based PSCs.
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Affiliation(s)
- OkSik Kim
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - JinBeom Kwon
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - SaeWan Kim
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - Binrui Xu
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - KyeongHo Seo
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - CheolEon Park
- Center for Robotics Research, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea;
| | - WooJong Do
- Department of Sensor and Display Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea;
| | - JinHyuk Bae
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
| | - ShinWon Kang
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Daegu 702-701, Korea; (O.K.); (J.K.); (S.K.); (B.X.); (K.S.); (J.B.)
- Correspondence: ; Tel.: +82-53-950-6829
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Gao W, Gou W, Zhou X, Ho JC, Ma Y, Qu Y. Amine-Modulated/Engineered Interfaces of NiMo Electrocatalysts for Improved Hydrogen Evolution Reaction in Alkaline Solutions. ACS Appl Mater Interfaces 2018; 10:1728-1733. [PMID: 29282973 DOI: 10.1021/acsami.7b16125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The interface between electrolytes and electrocatalysts would largely determine their corresponding activity and stability. Herein, modulating the surface characteristics of NiMo nanoparticles by various adsorbed amines gives the tunability on their interfacial properties and subsequently improves their catalytic performance for hydrogen evolution reaction (HER) in alkaline solutions. Diamines can significantly improve their HER activity by decreasing the charge-transfer resistance and modulating the electronic structures of interfacial active sites. Importantly, among various amines, ethylenediamine facilitates the HER activity of NiMo with a remarkable decrease of 268 mV in the overpotential to reach 10 mA cm-2 as compared with that of the unmodified NiMo in 1.0 M KOH. This method provides a novel strategy of regulating the interfacial properties to strengthen the catalytic performance of electrocatalysts.
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Affiliation(s)
- Wei Gao
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University , Xi'an 710049, P. R. China
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | - Wangyan Gou
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University , Xi'an 710049, P. R. China
| | - Xuemei Zhou
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University , Xi'an 710049, P. R. China
| | - Johnny C Ho
- Shenzhen Research Institute, City University of Hong Kong , Shenzhen 518057, P. R. China
| | - Yuanyuan Ma
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University , Xi'an 710049, P. R. China
| | - Yongquan Qu
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University , Xi'an 710049, P. R. China
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9
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Kang M, Yuwen Y, Hu W, Yun S, Mahalingam K, Jiang B, Eyink K, Poutrina E, Richardson K, Mayer TS. Self-Organized Freestanding One-Dimensional Au Nanoparticle Arrays. ACS Nano 2017; 11:5844-5852. [PMID: 28582622 DOI: 10.1021/acsnano.7b01479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
One-dimensional Au nanoparticle arrays encapsulated within freestanding SiO2 nanowires are fabricated by thermal oxidation of Au-coated Si nanowires with controlled diameter and surface modulation. The nanoparticle diameter is determined by the Si nanowire diameter and Au film thickness, while the interparticle spacing is independently controlled by the Si nanowire modulation. The optical absorption of randomly oriented Au nanoparticle arrays exhibits a strong plasmonic response at 550 nm. Scanning transmission electron microscopy (STEM)-electron energy loss spectrum (EELS) of nanoparticle arrays confirmed the same plasmonic response and demonstrated uniform optical properties of the Au nanoparticles. The plasmonic response in the STEM-EELS maps is primarily confined around the vicinity of the nanoparticles. On the other hand, examination of the same nanowires by energy-filtered transmission electron microscopy also revealed significant enhancement in the plasmonic excitation in the regions in between the nanoparticles. This versatile route to synthesize one-dimensional Au nanoparticle arrays with independently tailorable nanoparticle diameter and interparticle spacing opens up opportunities to exploit enhanced design flexibility and cost-effectiveness for future plasmonic devices.
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Affiliation(s)
- Myungkoo Kang
- Department of Electrical Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Yu Yuwen
- Department of Electrical Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Wenchong Hu
- Department of Electrical Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Seokho Yun
- Department of Electrical Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Krishnamurthy Mahalingam
- Air Force Research Laboratory, Materials and Manufacturing Directorate (AFRL/RXAN), Wright-Patterson AFB , Dayton, Ohio 45433-7707, United States
| | - Bin Jiang
- FEI Company , Hillsboro, Oregon 97124, United States
| | - Kurt Eyink
- Air Force Research Laboratory, Materials and Manufacturing Directorate (AFRL/RXAN), Wright-Patterson AFB , Dayton, Ohio 45433-7707, United States
| | - Ekaterina Poutrina
- Air Force Research Laboratory, Materials and Manufacturing Directorate (AFRL/RXAN), Wright-Patterson AFB , Dayton, Ohio 45433-7707, United States
| | - Kathleen Richardson
- CREOL, College of Optics and Photonics, University of Central Florida , Orlando, Florida 32816, United States
| | - Theresa S Mayer
- Department of Electrical Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
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10
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Shin WJ, Shin SW, Yuk JS, Amornkitbamrung L, Jang MS, Song IH, Choi SW, Kang I, Lee JY, Bae H, Kang KS, Um SH. Cell Surface Nano-modulation for Non-invasive in vivo Near-IR Stem Cell Monitoring. ChemMedChem 2016; 12:28-32. [PMID: 27943553 DOI: 10.1002/cmdc.201600428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 08/23/2016] [Revised: 12/09/2016] [Indexed: 11/08/2022]
Abstract
A stem cell tracking system is in high demand for the determination of cell destinations and for the validation of cell therapeutic efficacy in regenerative transplantation. To date, near-infrared (NIR) imaging technology has received considerable attention in cell behavior monitoring, owing to its patient compatibility, easy accessibility and cost effectiveness. Conventionally, in vivo cell tracking has been visualized by direct in-cell staining with NIR, where it may be achieved by complicated genetic engineering. Such genetic amendment techniques have suffered from serious challenges, which can destroy a cell's metabolism and can accidentally incur unexpected carcinoma. Herein we demonstrate a novel cell nano-modulation method for noninvasive stem cell monitoring. It is simply achieved by conjugating stem cells with lipid-supported, NIR-tagged, polymeric nanoparticles. These engineered cells, which are designated as NIR-labeled light-emitting stem cells (LESCs), maintain their biochemical functionality (i.e., differentiation, quantum efficacy, etc.) even after conjugation. LESCs were used for in situ stem cell monitoring at inoculation sites. It is speculated that the LESC technique could provide a new preparative methodology for in vivo cell tracking in advanced diagnostic medicine, where cell behavior is a critical issue.
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Affiliation(s)
- Woo Jung Shin
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - Seung Won Shin
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - Ji Soo Yuk
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - Lunjakorn Amornkitbamrung
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - Min Su Jang
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - In Hyun Song
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
| | - Soon Won Choi
- Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 85 dong, Gwangk-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Insung Kang
- Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 85 dong, Gwangk-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Jin Young Lee
- Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 85 dong, Gwangk-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Hojae Bae
- College of Animal Bioscience and Technology, Department of Bioindustrial Technologies, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, South Korea
| | - Kyung-Sun Kang
- Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 85 dong, Gwangk-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Soong Ho Um
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea.,SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea
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