1
|
Gao K, Gong Z, Chen X, Zhang Y, Chen H, Jiang L, Zhu C, Ji M, Liu Y, Cai Y, Li G, Lu G. Promoting the Cobalt Phthalocyanine-Catalyzed Electrochemical Reduction of Carbon Dioxide with the Coadsorption of Melamine. ACS APPLIED MATERIALS & INTERFACES 2025. [PMID: 40434137 DOI: 10.1021/acsami.5c03904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2025]
Abstract
Electrochemical reduction of carbon dioxide (CO2RR) is a promising strategy for mitigating global warming and producing value-added products simultaneously. Molecular catalysts, such as cobalt phthalocyanine (CoPc), are known to be effective in converting carbon dioxide (CO2) to carbon monoxide (CO). However, it is still challenging to improve the reaction rate and selectivity of this conversion. Herein, we report a simple and effective coadsorption strategy to promote the reaction rate and selectivity of CoPc-catalyzed CO2RR to CO by coadsorbing melamine molecules together with CoPc onto the surface of carbon nanotubes (CNTs). The coadsorption of melamine led to an increase in the output current density for 2.6-fold at an overpotential of -1.23 V vs Ag|AgCl. Moreover, the Faraday efficiency (FE) toward CO increased to 92% in an H-type cell, in contrast to the FE of 85% in the absence of melamine coadsorption. The FE toward CO further improved to 99% in a flow cell system. It was revealed that the coadsorption of melamine could modulate the surface adsorption of the *CO intermediates and decrease the energy barrier of CO2 reduction to CO. More importantly, only a solution-based process was employed in the whole procedure and no organic synthesis was involved, making our method highly simple, convenient, and environment friendly. This work paves an effective way for modulating the activity and selectivity of molecular catalysts in the CO2RR.
Collapse
Affiliation(s)
- Kun Gao
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Zhongyan Gong
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Xinya Chen
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yulong Zhang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Haonan Chen
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Lu Jiang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chengcheng Zhu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Miao Ji
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yaning Liu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yingying Cai
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Gongqiang Li
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
- School of Pharmaceutical and Chemical Engineering, Zhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Gang Lu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| |
Collapse
|
2
|
Kozisek J, Hrncirova J, Slouf M, Sloufova I. Plasmon-driven substitution of 4-mercaptophenylboronic acid to 4-nitrothiophenol monitored by surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124523. [PMID: 38820811 DOI: 10.1016/j.saa.2024.124523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/02/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024]
Abstract
Plasmon-driven reactions on plasmonic nanoparticles (NPs) occur under significantly different conditions from those of classical organic synthesis and provide a promising pathway for enhancing the efficiency of various chemical processes. However, these reactions can also have undesirable effects, such as 4-mercaptophenylboronic acid (MPBA) deboronation. MPBA chemisorbs well to Ag NPs through its thiol group and can subsequently bind to diols, enabling the detection of various biological structures by surface-enhanced Raman scattering (SERS), but not upon its deboronation. To avoid this reaction, we investigated the experimental conditions of MPBA deboronation on Ag NPs by SERS. Our results showed that the level of deboronation strongly depends on both the morphology of the system and the excitation laser wavelength and power. In addition, we detected not only the expected products, namely thiophenol and biphenyl-4,4-dithiol, but also 4-nitrothiophenol (NTP). The crucial reagent for NTP formation was an oxidation product of hydroxylamine hydrochloride, the reduction agent used in Ag NP synthesis. Ultimately, this reaction was replicated by adding NaNO2 to the system, and its progress was monitored as a function of the laser power, thereby identifying a new reaction of plasmon-driven -B(OH)2 substitution for -NO2.
Collapse
Affiliation(s)
- Jan Kozisek
- Charles University, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Jana Hrncirova
- Charles University, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Ivana Sloufova
- Charles University, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| |
Collapse
|
3
|
Kohila Rani K, Xiao YH, Devasenathipathy R, Gao K, Wang J, Kang X, Zhu C, Chen H, Jiang L, Liu Q, Qiao F, Li Z, Wu DY, Lu G. Raman Monitoring of the Electro-Optical Synergy-Induced Enhancements in Carbon-Bromine Bond Cleavage, Reaction Rate, and Product Selectivity of p-Bromothiophenol. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27831-27840. [PMID: 38757708 DOI: 10.1021/acsami.4c01259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Electro-optical synergy has recently been targeted to improve the separation of hot carriers and thereby further improve the efficiency of plasmon-mediated chemical reactions (PMCRs). However, the electro-optical synergy in PMCRs needs to be more deeply understood, and its contribution to bond dissociation and product selectivity needs to be clarified. Herein, the electro-optical synergy in plasmon-mediated reduction of p-bromothiophenol (PBTP) was studied on a plasmonic nanostructured silver electrode using in situ Raman spectroscopy and theoretical calculations. It was found that the electro-optical synergy-induced enhancements in the cleavage of carbon-bromine bonds, reaction rate, and product selectivity (4,4'-biphenyl dithiol vs thiophenol) were largely affected by the applied bias, laser wavelength, and laser power. The theoretical simulation further clarified that the strong electro-optical synergy is attributed to the matching of energy band diagrams of the plasmonic silver with those of the adsorbed PBTP molecules. A deep understanding of the electro-optical synergy in PBTP reduction and the clarification of the mechanism will be highly beneficial for the development of other highly efficient PMCRs.
Collapse
Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kun Gao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jiazheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Xing Kang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Chengcheng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Furong Qiao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| |
Collapse
|
4
|
Wei Y, Fan X, Chen D, Zhu X, Yao L, Zhao X, Tang X, Wang J, Zhang Y, Qiu T, Hao Q. Probing Oxidation Mechanisms in Plasmonic Catalysis: Unraveling the Role of Reactive Oxygen Species. NANO LETTERS 2024; 24:2110-2117. [PMID: 38290214 DOI: 10.1021/acs.nanolett.3c04979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Plasmon-induced oxidation has conventionally been attributed to the transfer of plasmonic hot holes. However, this theoretical framework encounters challenges in elucidating the latest experimental findings, such as enhanced catalytic efficiency under uncoupled irradiation conditions and superior oxidizability of silver nanoparticles. Herein, we employ liquid surface-enhanced Raman spectroscopy (SERS) as a real-time and in situ tool to explore the oxidation mechanisms in plasmonic catalysis, taking the decarboxylation of p-mercaptobenzoic acid (PMBA) as a case study. Our findings suggest that the plasmon-induced oxidation is driven by reactive oxygen species (ROS) rather than hot holes, holding true for both the Au and Ag nanoparticles. Subsequent investigations suggest that plasmon-induced ROS may arise from hot carriers or energy transfer mechanisms, exhibiting selectivity under different experimental conditions. The observations were substantiated by investigating the cleavage of the carbon-boron bonds. Furthermore, the underlying mechanisms were clarified by energy level theories, advancing our understanding of plasmonic catalysis.
Collapse
Affiliation(s)
- Yunjia Wei
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xingce Fan
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Dexiang Chen
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiangnan Zhu
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Lei Yao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xing Zhao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiao Tang
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Jiawei Wang
- School of Electronic and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, People's Republic of China
| | - Yuanjian Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Teng Qiu
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Qi Hao
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| |
Collapse
|
5
|
Kohila Rani K, Yang Q, Xiao YH, Devasenathipathy R, Lu Z, Chen X, Jiang L, Li Z, Liu Q, Chen H, Yu L, Li Z, Khayour S, Wang J, Wang K, Li G, Wu DY, Lu G. Boosting the Plasmon-Mediated Electrochemical Oxidation of p-Aminothiophenol with p-Hydroxythiophenol as Molecular Cocatalyst. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38038343 DOI: 10.1021/acsami.3c12778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Plasmon-mediated electrochemistry is an emerging area of interest in which the electrochemical reactions are enhanced by employing metal nanostructures possessing localized surface plasmon resonance (LSPR). However, the reaction efficacy is still far below its theoretical limit due to the ultrafast relaxation of LSPR-generated hot carriers. Herein, we introduce p-hydroxythiophenol (PHTP) as a molecular cocatalyst to significantly improve the reaction efficacy in plasmon-mediated electrochemical oxidation of p-aminothiophenol (PATP) on gold nanoparticles. Using electrochemical techniques, in situ Raman spectroscopy, and theoretical calculations, we elucidate that the presence of PHTP improves the hot hole-mediated electrochemical oxidation of PATP by 2-fold through the trapping of plasmon-mediated hot electrons. In addition, the selectivity of PATP oxidation could also be modulated by the introduction of PHTP cocatalyst. This tactic of employing molecular cocatalyst can be drawn out to endorse various plasmonic electrochemical reactions because of its simple protocol, high efficiency, and high selectivity.
Collapse
Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qiong Yang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming Road, Xiamen 361005, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhihao Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Xinya Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zemin Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Soukaina Khayour
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Gongqiang Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - De-Yin Wu
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming Road, Xiamen 361005, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| |
Collapse
|
6
|
Wang J, Gong Z, Zhang Y, Song Y, Chen X, Lu Z, Jiang L, Zhu C, Gao K, Wang K, Wang J, Yu L, Khayour S, Xie H, Li Z, Lu G. Selectively Adsorbed p-Aminothiophenol Molecules Improve the Electrocatalytic and Photo-Electrocatalytic Hydrogen Evolution on Au/TiO 2. ACS APPLIED MATERIALS & INTERFACES 2023; 15:54550-54558. [PMID: 37968852 DOI: 10.1021/acsami.3c13974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Electrocatalytic hydrogen evolution reaction (HER) is receiving increasing attention as an effective process to produce clean energy. The commonly used precious metal catalysts can be hybridized with semiconductors to form heterostructures for the improvement of catalytic efficiency and reduction of cost. It will be promising to further improve the efficiency of heterostructure-based nanocatalysts in electrocatalytic and photocatalytic HER using a simple and effective method. Herein, we improve the efficiency of Au/TiO2 in electrocatalytic and photo-electrocatalytic HER by selectively adsorbing p-aminothiophenol (PATP) molecules. The PATP molecules are adsorbed on the gold surface by using a simple solution-based method and favor the charge separation at the Au-TiO2 interface. We also compare the PATP molecules with other thiophenol molecules in the enhancement of electrocatalytic HER. The PATP-induced enhancement in electrocatalysis is then further investigated by density functional theory (DFT) calculations, and this enhancement is attributed to a reduction in Gibbs energy of adsorbed hydrogen after surface adsorption of PATP molecules. This work provides a simple, cost-effective, and highly efficient approach to improve the electrocatalytic and photo-electrocatalytic efficiency of Au/TiO2, and this approach could be easily extended to other heterostructure-based nanocatalysts for performance enhancement and may be used in many other catalytic reactions.
Collapse
Affiliation(s)
- Jin Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Zhongyan Gong
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yulong Zhang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yaxin Song
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Xinya Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Zhihao Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chengcheng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Kun Gao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Soukaina Khayour
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, second Floor, Building 2, Xixi Legu Creative Pioneering Park, 712 Wen'er West Road, Xihu District, Hangzhou 310003, P. R. China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| |
Collapse
|
7
|
Joshi G, Kashyap R, Patrikar K, Mondal A, Khatua S. Ligand-mediated electron transport channels enhance photocatalytic activity of plasmonic nanoparticles. NANOSCALE 2023; 15:16552-16560. [PMID: 37811748 DOI: 10.1039/d3nr02829a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Photoexcitation of noble metal nanoparticles creates surface plasmons which further decay to form energetic charge carriers. These charge carriers can initiate and/or accelerate various chemical processes at nanoparticle surfaces, although the efficiency of such processes remains low as a large fraction of these carriers recombine before they can reach the reaction sites. Thus efficient utilization of these charge carriers requires designing nanostructures that promote the separation of charges and their transport toward the reaction sites. Here we demonstrate that covalently bound surface-coating ligands with suitable orbital alignment can provide electron transport channels boosting hot electron extraction from a gold nanostructure leading to a huge enhancement in the rate of hydrogen evolution reaction (HER) under NIR excitation. A (p)Br-Ph-SH substituted gold nanoprism (AuTP) substrate produced ∼4500 fold more hydrogen compared to a pristine AuTP substrate under 808 nm excitation. Further experimental and theoretical studies on a series of substituted benzene-thiol bound AuTP substrates showed that the extent of the ligand-mediated HER enhancement depends not only on the polarity of the ligand but on the interfacial orbitals interactions.
Collapse
Affiliation(s)
- Gayatri Joshi
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat-382055, India.
| | - Rajesh Kashyap
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat-382055, India.
| | - Kalyani Patrikar
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat-382055, India.
| | - Anirban Mondal
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat-382055, India.
| | - Saumyakanti Khatua
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat-382055, India.
| |
Collapse
|
8
|
Guan M, Wang J, Wang K, Wang J, Devasenathipathy R, He S, Yu L, Zhang L, Xie H, Li Z, Lu G. Selective adsorption of cysteamine molecules on Au/TiO 2 boosts visible light-driven photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 633:1033-1041. [PMID: 36516679 DOI: 10.1016/j.jcis.2022.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/24/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Photocatalytic evolution of hydrogen is becoming a research hotspot because it can help to produce clean energy and reduce environmental pollution. Titanium dioxide (TiO2) and its composites are photocatalysts that are widely used in hydrogen evolution because of their high abundance in nature, low price, and high photo/chemical stability. However, their catalytic performances still need to be further improved, particularly in the visible light spectrum. Herein, visible light-driven photocatalytic evolution of hydrogen on Au/TiO2 nanocomposite is enhanced ∼ 10 folds by selectively functionalizing the nanocomposite with cysteamine molecules. It is revealed that the amine group (-NH2) in cysteamine favors the transfer and separation of photo-generated hot carriers. The rate of hydrogen produced can be further tuned by varying the ionization of the functionalized molecules at different pH values. This work provides a simple, convenient, and effective method that can be used to improve the photocatalytic evolution of hydrogen. This method can also be used for many other nanocatalysts (e.g., Au-MoS2, Au-BiVO4) and catalytic reactions (e.g., carbon dioxide reduction, nitrogen reduction).
Collapse
Affiliation(s)
- Mengdan Guan
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jin Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Shunhao He
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Linrong Zhang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou 310003, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China.
| | - Gang Lu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China.
| |
Collapse
|
9
|
Zhang L, Wang L, He S, Zhu C, Gong Z, Zhang Y, Wang J, Yu L, Gao K, Kang X, Song Y, Lu G, Yu HD. High-Performance Organic Electrochemical Transistor Based on Photo-annealed Plasmonic Gold Nanoparticle-Doped PEDOT:PSS. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3224-3234. [PMID: 36622049 DOI: 10.1021/acsami.2c19867] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Organic electrochemical transistors (OECTs), particularly the ones based on PEDOT:PSS, are excellent candidates for chemical and biological sensing because of their unique advantages. Improving the sensitivity and stability of OECTs is crucially important for practical applications. Herein, the transconductance of OECT is improved by 8-fold to 14.9 mS by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) using a solution-based process followed by photo annealing. In addition, the OECT also possesses high flexibility and cyclic stability. It is revealed that the doping of AuNPs increases the conductivity of PEDOT:PSS and the photo annealing improves the crystallinity of the PEDOT:PSS channel and the interaction between AuNPs and PEDOT:PSS. These changes lead to the increase in transconductance and cyclic stability. The prepared OECTs are also demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM-1 mM. Our OECTs based on photo-annealed plasmonic AuNP-doped PEDOT:PSS may find great applications in chemical and biological sensing, and this strategy may be extended to prepare many other high-performance OECT-based devices.
Collapse
Affiliation(s)
- Linrong Zhang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Li Wang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Shunhao He
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Chengcheng Zhu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Zhongyan Gong
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Yulong Zhang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Junjie Wang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Liuyingzi Yu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Kun Gao
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Xing Kang
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Yaxin Song
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Gang Lu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
| | - Hai-Dong Yu
- School of Flexible Electronics (Future Technologies), Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, PR China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
| |
Collapse
|