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学者姓名：汤儆
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Currently, transition metal phosphides (Cu, Fe, Co, and others) have been identified as potential candidates for both the oxygen evolution reaction (OER, anode) and hydrogen evolution reaction (HER, cathode). One of the copper based phosphides has shown efficiency for the HER, however, it displays greater theoretical potential and instability compared to noble metal materials in the OER process. Herein, Cu-MOF-NH2 nanocubes were subjected to pyrolysis treatment in a low phosphorus atmosphere to produce highly dispersed Cu3P nanoparticles. Dispersed Cu3P nanoparticles coated with nitrogen-carbon matrix composite layers provide numerous active sites and high stability. In situ Raman spectra confirmed a significant reduction in Cu+ oxidation to Cu2+. Furthermore, according to XPS resolution results, the Cu-P bond provides electrons to the Cu-P-O bond, thus accelerating the OER process. We integrated experimental electrochemistry to verify the potential enhancement of the OER performance and stability of Cu3P using appropriate nanostructure coating techniques. The Cu3P/NC@CF electrode was prepared by the phosphorylation and pyrolysis of Cu MOF-NH2. It retained superior structural stability for the OER process and served as both anode and cathode for the overall water splitting in 1 M KOH solution.
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| GB/T 7714 | Jiang, Haishun , Shi, Jihua , Liu, Xiangyue et al. Highly dispersed copper phosphide nanoparticles accelerate the electrolytic water oxidation process [J]. | GREEN CHEMISTRY , 2024 , 26 (6) : 3388-3396 . |
| MLA | Jiang, Haishun et al. "Highly dispersed copper phosphide nanoparticles accelerate the electrolytic water oxidation process" . | GREEN CHEMISTRY 26 . 6 (2024) : 3388-3396 . |
| APA | Jiang, Haishun , Shi, Jihua , Liu, Xiangyue , Tang, Jing . Highly dispersed copper phosphide nanoparticles accelerate the electrolytic water oxidation process . | GREEN CHEMISTRY , 2024 , 26 (6) , 3388-3396 . |
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Designing high activity and stable oxygen evolution reaction (OER) catalysts is essential for improving the efficiency of the water splitting reaction. The high entropy transition metal sulfide (HES) catalyst will be a promising candidate for accelerating the OER due to its high intrinsic activity and excellent stability. However, the synthesis of HES by chemical methods and the investigation of the structural evolution during the reaction remain a challenging task. In this work, a HES catalyst has been synthesized by a simple thermal injection method. All elements are uniformly distributed in HES nanoparticles, which exhibit excellent activity with an exceptionally low overpotential of 263 at current densities of 100 mA center dot cm- 2 and a low Tafel slope of 51.5 mV center dot dec- 1. This work demonstrates the great potential of HES catalysts as OER electrocatalysts and provides new ideas for the construction and extension of this family of compounds.
Keyword ：
High entropy sulfide High entropy sulfide In situ Raman In situ Raman Oxygen evolution reaction Oxygen evolution reaction Synergistic effect Synergistic effect Thermo injection Thermo injection
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| GB/T 7714 | Shi, Jihua , Jiang, Haishun , Hong, Xinle et al. Non-noble metal high entropy sulfides for efficient oxygen evolution reaction catalysis [J]. | APPLIED SURFACE SCIENCE , 2024 , 642 . |
| MLA | Shi, Jihua et al. "Non-noble metal high entropy sulfides for efficient oxygen evolution reaction catalysis" . | APPLIED SURFACE SCIENCE 642 (2024) . |
| APA | Shi, Jihua , Jiang, Haishun , Hong, Xinle , Tang, Jing . Non-noble metal high entropy sulfides for efficient oxygen evolution reaction catalysis . | APPLIED SURFACE SCIENCE , 2024 , 642 . |
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Plasmon-mediated chemical reaction (PMCR) is a highly attractive field of research. Here we report in situ surface-enhanced Raman spectroscopic (SERS) monitoring of plasmonic-mediated S-S bond-forming reaction. The reaction is thought to be a self-coupling reaction proceeding by photoinduced aromatic S-C bond arylation. Surprisingly, the S-C arylation and S-S coupling are found to be occurred on both partially oxidized silver and silver nanoparticles. The results demonstrated that silver oxide or hydroxide and small molecule donor sacrifice agent played a crucial role in the reaction. This work facilitates the in-situ manipulation and characterization of the active silver electrode interface in conjunction with electrochemistry, and also establishes a promising new guideline for surface plasmon resonance photocatalytic reactions on metal nanostructures with high efficiency.
Keyword ：
S-C arylation S-C arylation Silver Silver S-S coupling S-S coupling Surface-enhanced Raman spectroscopy (SERS) Surface-enhanced Raman spectroscopy (SERS) Surface plasmon resonances (SPR) Surface plasmon resonances (SPR)
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| GB/T 7714 | Ling, Yun , Zhang, Maosheng , Liu, Guokun et al. Plasmonic-mediated S-C arylation and S-S coupling on nanostructured silver electrodes monitored by in situ surface-enhanced Raman spectroscopy [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 668 : 154-160 . |
| MLA | Ling, Yun et al. "Plasmonic-mediated S-C arylation and S-S coupling on nanostructured silver electrodes monitored by in situ surface-enhanced Raman spectroscopy" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 668 (2024) : 154-160 . |
| APA | Ling, Yun , Zhang, Maosheng , Liu, Guokun , Wu, Deyin , Tang, Jing . Plasmonic-mediated S-C arylation and S-S coupling on nanostructured silver electrodes monitored by in situ surface-enhanced Raman spectroscopy . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 668 , 154-160 . |
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Atomically precise metal nanoclusters (NCs) present new opportunities for creating innovative solar-powered photoanodes due to their extraordinary physicochemical properties. Nevertheless, ultrasmall metal NCs tend to aggregate and lack active sites under light irradiation, which severely limits their widespread application. We have developed a strategy to design efficient ternary photoanodes by successively modifying AgAu NCs and CoNi-LDH on BiVO4 substrates using versatile impregnation and electrodeposition. The electronic properties of AgAu NCs facilitate the rapid transfer of photogenerated carriers on BiVO4 and CoNi-LDH. Additionally, ultrathin CoNi-LDH acts as a hole-collecting layer, which quickly extracts holes to the electrode/electrolyte interface. The synergistic effect and the matched energy levels between the ternary heterostructures promote the OER process, which significantly improved the photoelectrochemical (PEC) water oxidation performance. This study presents a new idea for further exploration of metal nanocluster-based PEC systems.
Keyword ：
bismuth vanadate bismuth vanadate metal nanoclusters metal nanoclusters photoelectrochemical water splitting photoelectrochemical water splitting synergistic effect synergistic effect ternaryphotoanodes ternaryphotoanodes
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| GB/T 7714 | Chen, Wenjie , Jin, Guangrui , Liu, Yijun et al. Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (18) : 23296-23304 . |
| MLA | Chen, Wenjie et al. "Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation" . | ACS APPLIED MATERIALS & INTERFACES 16 . 18 (2024) : 23296-23304 . |
| APA | Chen, Wenjie , Jin, Guangrui , Liu, Yijun , Wei, Qiaohua , Tang, Jing . Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (18) , 23296-23304 . |
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Electrolysis of seawater is currently a promising technology for efficient green hydrogen production and solving the energy crisis. Urea oxidation reaction (UOR) has a low thermodynamic onset potential, which is an effective reaction to replace the oxygen evolution reaction (OER) in overall seawater splitting and avoid toxic hypochlorite generation. In this paper, we report sulfur-doped NiFe LDH with ultrathin nanoflower morphology on the surface of three-dimensional nickel foam (NF) loaded with Ti3C2Tx MXene by the two-step electrodeposition method (S-NiFe LDH/MXene@NF). The catalytic performance of electrolytic seawater is boosted by the synergistic effect of the abundant interface between Ti3C2Tx MXene and sulfur-doped NiFe LDH, which promotes electron transfer. S-NiFe LDH/MXene@NF exhibited electrocatalytic performance values of 1.578 and 1.437 V (vs RHE) for OER and UOR at 500 mA cm(-2), respectively, and an overpotential of 336 mV for the hydrogen evolution reaction (HER) at 500 mA cm(-2) in an alkaline seawater electrolyte. As a bifunctional electrode, it can achieve a current density of 500 mA cm(-2) at 2.027 V with great stability. The in situ Raman detection of surface recombination of the S-NiFe LDH/MXene@NF electrode in the UOR demonstrates that Ti3C2Tx MXene accelerates the formation of the active species NiOOH on the electrode surface and facilitates the lattice disturbance of NiOOH. This helps to increase the catalytic activity of urea-assisted overall seawater splitting.
Keyword ：
electrolysis of seawater electrolysis of seawater in situ Raman in situ Raman layered double hydroxides layered double hydroxides MXene MXene synergistic effect synergistic effect
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| GB/T 7714 | Liu, Yijun , Hong, Xinle , Liu, Xiangyue et al. Electrolysis of Seawater: An Effective Path to Sustainable Hydrogen Production with Sulfur-Doped NiFe LDH/MXene@NF Electrodes [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (31) : 11520-11530 . |
| MLA | Liu, Yijun et al. "Electrolysis of Seawater: An Effective Path to Sustainable Hydrogen Production with Sulfur-Doped NiFe LDH/MXene@NF Electrodes" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12 . 31 (2024) : 11520-11530 . |
| APA | Liu, Yijun , Hong, Xinle , Liu, Xiangyue , Chen, Wenjie , Tang, Jing . Electrolysis of Seawater: An Effective Path to Sustainable Hydrogen Production with Sulfur-Doped NiFe LDH/MXene@NF Electrodes . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2024 , 12 (31) , 11520-11530 . |
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Tuning surface termination can improve the carrier dynamics and photoredox performance of photocatalysts by modifying the surface physicochemical properties. Herein, we prepared a Si photocatalyst by magnesium-thermal reduction and then treated it with trifluoroacetic acid (TFA). The as-obtained TFA-terminated Si photocatalyst (TFA-Si) improves double-layer capacitance and electrochemical/Brunauer-Emmet-Teller surface area, rendering more active sites. Moreover, the TFA modification causes an increase in wettability, charge carrier density, and photocurrent and a reduction in electrochemical impedance and overpotential, which enhances the adsorption/reduction of water molecules and the photoexcited-carrier dynamics for photocatalysis. TFA-Si shows high photocatalytic H2 evolution activity (1827 mu mol center dot g-1 center dot h-1) in pure water under visible light. The AQY of TFA-Si reached 6.1% at 400 nm. Interestingly, TFA molecules promote the oxidation capacity of Si photocatalysts for water oxidation through a hole transfer pathway, boosting its activity and stability. This work broadens the applications of Si-based materials for use in photocatalysis.
Keyword ：
hydrogen production hydrogen production photocatalysis photocatalysis silicon silicon stability stability TFA TFA
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| GB/T 7714 | Shao, Juan , Cheng, Chuchu , Xing, Fangshu et al. Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water [J]. | ACS APPLIED ENERGY MATERIALS , 2023 , 6 (2) : 1056-1065 . |
| MLA | Shao, Juan et al. "Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water" . | ACS APPLIED ENERGY MATERIALS 6 . 2 (2023) : 1056-1065 . |
| APA | Shao, Juan , Cheng, Chuchu , Xing, Fangshu , Shi, Wenwen , Tang, Jing , Li, Ze et al. Surface Termination Tuning Photoexcited-Carrier Dynamics and Carrier Transfer Pathway on Silicon for High-Performance Photocatalytic H2 Evolution from Pure Water . | ACS APPLIED ENERGY MATERIALS , 2023 , 6 (2) , 1056-1065 . |
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Due to the difficulty of developing noble materials for large-scale applications, transition metal oxide materials have become popular alternatives for the hydrogen evolution reaction. However, compared to commercial Pt/C, poor conductivity and hydrogen evolution activity are common for transition metal oxides, including WO3(-x)based semiconductors, so it is therefore necessary to ameliorate the electrode self-properties to be suitable for H2 production. Here, different ratios of S(2- )and Ni2+ salts are introduced into hexagonal WO3 and Ni(0.4)WO3(-x)S(x) is prepared successfully after oxygen vacancies and W-O-S and Ni-W-O bonds are formed on the surface of the Ni(0.4)WO3(-x)S(x) nanorods. The X-ray photoelectron, Raman and electrochemical impedance spectroscopy results show that the incorporation of Ni and S atoms can increase the number of oxygen vacancies and the conductivity for hydrogen evolution, simultaneously demonstrating that the W-O-S and Ni-W-O bonds are the main active sites of the Ni(0.4)WO3(-x)S(x )nanorods. Density functional theory calculations further indicate that the & UDelta;GH* of NiWO3-xSx is closer to 20 % commercial Pt/C. The Tafel slope reduces to 87.3 mV/dec when approaching the Volmer-Heyrovsky kinetic mechanism reaction. Finally, the onset potential is 53 mV. The overpotential is 173 mV at 10 mA/cm2, which is 68 % lower compared to hexagonal WO3.
Keyword ：
Doping and loading Doping and loading Electrocatalysis Electrocatalysis Hydrogen Hydrogen In -situ Raman In -situ Raman Tungsten oxides Tungsten oxides
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| GB/T 7714 | Jiang, Haishun , Chen, Wenjie , Wang, Xu et al. Tailoring the oxygen vacancies and electronic structures of the hex-WO3 (100) crystal plane with heteroatoms for enhanced hydrogen evolution performance [J]. | APPLIED SURFACE SCIENCE , 2023 , 615 . |
| MLA | Jiang, Haishun et al. "Tailoring the oxygen vacancies and electronic structures of the hex-WO3 (100) crystal plane with heteroatoms for enhanced hydrogen evolution performance" . | APPLIED SURFACE SCIENCE 615 (2023) . |
| APA | Jiang, Haishun , Chen, Wenjie , Wang, Xu , Ma, Hong-lin , Li, Yi , Tang, Jing . Tailoring the oxygen vacancies and electronic structures of the hex-WO3 (100) crystal plane with heteroatoms for enhanced hydrogen evolution performance . | APPLIED SURFACE SCIENCE , 2023 , 615 . |
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A general strategy to simultaneouslypromote the NRR selectivityand activity of M-TiO2 through phase-transitionengineering to regulate oxygen vacancy and metal doping at the catalystsurface. Titanium dioxide has recently received a lot of attentionas apotential catalyst for the electrochemical nitrogen reduction reaction(NRR). However, the effect of surface reconstruction of titanium dioxideduring the phase transition on electrocatalysis has attracted littleattention. Here, we develop a facile one-pot phase-transition engineeringstrategy to implant defects in iron-doped titanium dioxide. Our engineeringstrategy shows advantages including a simple synthesis process, phase-transitionefficiency, cost-effective materials, and scalability. The experimentalresults and density functional theory (DFT) calculations demonstratethat surface oxygen vacancies and doping Fe atoms play crucial rolesas potential electrocatalytic sites for the NRR on Fe-TiO2 catalysts, which enables efficient inhibition of the hydrogenevolution reaction (HER). A high NH3 yield of 30.9 & PLUSMN;0.4 & mu;g h(-1) mg(cat.) (-1) and a Faradaic efficiency (FE) of 40.4 & PLUSMN; 1.1% at -0.4V vs reversible hydrogen electrode are obtained for the NRR, outperformingmost Ti-based catalysts reported previously. The formation and electrocatalyticNRR properties of Mn-TiO2, Co-TiO2, Ni-TiO2, and Cu-TiO2 are alsoverified.
Keyword ：
defect engineering defect engineering density functionaltheory density functionaltheory nitrogen reduction nitrogen reduction oxygenvacancies oxygenvacancies phase transition phase transition
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| GB/T 7714 | Ling, Yun , Feng, Qingyun , Xie, Huiqi et al. Phase-Transition Engineering with Tuning of Defects in TiO2 for Highly Efficient Electrochemical Nitrogen Reduction [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2023 , 11 (33) : 12345-12354 . |
| MLA | Ling, Yun et al. "Phase-Transition Engineering with Tuning of Defects in TiO2 for Highly Efficient Electrochemical Nitrogen Reduction" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 11 . 33 (2023) : 12345-12354 . |
| APA | Ling, Yun , Feng, Qingyun , Xie, Huiqi , Zheng, Xuan , Chen, Xiaoping , Zou, Zehua et al. Phase-Transition Engineering with Tuning of Defects in TiO2 for Highly Efficient Electrochemical Nitrogen Reduction . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2023 , 11 (33) , 12345-12354 . |
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We used a high-frequency heating technique combined withelectrochemicalsurface-enhanced Raman spectroscopy to study the temperature-dependentelectrooxidation reaction of methanol/ethanol and electrochemicalcarbon dioxide reduction (CO2RR). The results showed thatwith the increase of temperature, the Raman intensity of Pt-Cslowly decreased, indicating that the high temperature favors theoxidative desorption of *CO on the Pt surface to promote the catalyticreaction. Meanwhile, during the process of CO2 to CO onPd, the ratio of linearly bonded CO (weak adsorption) to bridge-bondedCO (strong adsorption) gradually increased with increasing temperature,indicating that the high temperature facilitated the desorption of*CO on the Pd surface and reduced the toxicity of CO. The presentresults provide a molecular-level insight into the effect of temperaturemodulation on *CO on the Pt surface (alcohol oxidation) and the Pdsurface (CO2RR), which can deepen the understanding ofthe interfacial redox mechanism.
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| GB/T 7714 | Wang, Xu , Zhang, Yuhua , Shi, Jihua et al. In Situ Temperature-Modulated Electrochemical Surface-Enhanced Raman Spectroscopy Study of the Effect of *CO on Metal Surface [J]. | JOURNAL OF PHYSICAL CHEMISTRY C , 2023 , 127 (27) : 13034-13043 . |
| MLA | Wang, Xu et al. "In Situ Temperature-Modulated Electrochemical Surface-Enhanced Raman Spectroscopy Study of the Effect of *CO on Metal Surface" . | JOURNAL OF PHYSICAL CHEMISTRY C 127 . 27 (2023) : 13034-13043 . |
| APA | Wang, Xu , Zhang, Yuhua , Shi, Jihua , Cai, Jiaofeng , Liu, Guokun , Tang, Jing . In Situ Temperature-Modulated Electrochemical Surface-Enhanced Raman Spectroscopy Study of the Effect of *CO on Metal Surface . | JOURNAL OF PHYSICAL CHEMISTRY C , 2023 , 127 (27) , 13034-13043 . |
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The water splitting reaction to produce hydrogen is one of the most promising and cleanest ways to resolve the energy crisis. However, the preparation of efficient and stable electrocatalysts with low-cost remains challenging. In this work, the noble-metal free N-doped carbon (NC) incorporated V-doped cobalt phosphide (CoP) nanosheets on nickel foam (NF) (denoted as V-CoP-NC/NF) are prepared by using two-dimension zeolitic imidazolate framework (ZIF-67) as precursor followed by NaVO3 etching/doping and phosphorization. The V doping is found to be essential to enhance the electrochemical performance of CoP for water splitting. In particular, V5-CoP-NC/ NF (V5 represents the concentration of NaVO3 for etching/doping is 5 mM) exhibits the highest hydrogen evolution performance in alkaline electrolyte, to achieve a current density of 10 mA cm-2, an overpotential of 119 mV (vs reversible hydrogen electrode) is required. X-ray photoelectron spectroscopy results show that the V doping significantly altered the binding energies of Co 2p, P 2p and N 1 s in V5-CoP-NC/NF, which is believed to facilitate the adsorption and dissociation of intermediates and accelerate interfacial charge transfer during hydrogen evolution reaction process. This work provides a simple route to prepare heteroatom doped CoP selfstanding electrocatalysts for water splitting.
Keyword ：
2D ZIF-67 2D ZIF-67 CoP/NC CoP/NC Electrocatalytic water splitting Electrocatalytic water splitting Hydrogen evolution Hydrogen evolution V-doped V-doped
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| GB/T 7714 | Liu, Xiangyue , Liu, Yijun , Li, Ye et al. 2D ZIF-67 derived V-doped CoP/NC nanosheets as efficient electrocatalysts for water splitting [J]. | ELECTROCHIMICA ACTA , 2023 , 471 . |
| MLA | Liu, Xiangyue et al. "2D ZIF-67 derived V-doped CoP/NC nanosheets as efficient electrocatalysts for water splitting" . | ELECTROCHIMICA ACTA 471 (2023) . |
| APA | Liu, Xiangyue , Liu, Yijun , Li, Ye , Zhuang, Jinliang , Tang, Jing . 2D ZIF-67 derived V-doped CoP/NC nanosheets as efficient electrocatalysts for water splitting . | ELECTROCHIMICA ACTA , 2023 , 471 . |
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