Query：
学者姓名：王心晨
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
A promising strategy to enhance exciton dissociation and charge separation in phenolic-polymer-based photocatalysts is the generation and utilization of benzenoid-quinoid donor-acceptor (D-A) couples inside the phenolic resin frameworks. However, there are often more donors than acceptors in phenolic resin due to the sluggish kinetics of in situ oxidation of phenols to quinoid methides, leading to a mismatched D/A ratio. Herein, we report a well-cross-linked phenolic resin with a unity D/A ratio synthesized by using phloroglucinol as a building block for condensation with formaldehyde. The higher electron density on the aromatic ring not only facilitates the in situ oxidation of phloroglucinols to quinoid methides, forming equivalent D-A couples, but also lowers the energy barrier for the condensation reaction, resulting in a highly cross-linked framework with a well-developed pi-conjugated electronic structure. The phloroglucinol-formaldehyde resin product demonstrates significantly improved photocatalytic performance in the selective oxidation of methyl phenyl sulfide and the oxidative coupling of benzylamine. Our approach shows the potential of photocatalytic phenolic resins for solar-induced chemical conversion.
Keyword ：
aerobic oxidation reactions aerobic oxidation reactions electron donor-acceptor architecture electron donor-acceptor architecture phenolic resin phenolic resin photocatalysis photocatalysis pi-conjugatedpolymer pi-conjugatedpolymer
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Meng , Huang, Meirong , Lin, Zheng et al. Phenolic Resin with an Optimized Donor-Acceptor Architecture for Photocatalytic Aerobic Oxidation [J]. | ACS CATALYSIS , 2024 , 14 (23) : 17622-17632 . |
| MLA | Li, Meng et al. "Phenolic Resin with an Optimized Donor-Acceptor Architecture for Photocatalytic Aerobic Oxidation" . | ACS CATALYSIS 14 . 23 (2024) : 17622-17632 . |
| APA | Li, Meng , Huang, Meirong , Lin, Zheng , Hou, Yidong , Anpo, Masakazu , Yu, Jimmy C. et al. Phenolic Resin with an Optimized Donor-Acceptor Architecture for Photocatalytic Aerobic Oxidation . | ACS CATALYSIS , 2024 , 14 (23) , 17622-17632 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Photocatalytic hydrogen production based on noble metal-free systems is a promising technology for the conversion of solar energy into green hydrogen, it is pivotal and challenging to tailor-make photocatalysts for achieving high photocatalytic efficiency. Herein, we reported a hollow double-shell dyad through uniformly coating covalent organic frameworks (COFs) on the surface of hollow Co9S8. The double shell architecture enhances the scattering and refraction efficiency of incident light, shortens the transmission distance of the photogenerated charge carriers, and exposes more active sites for photocatalytic conversion. The hydrogen evolution rate is as high as 23.15 mmol g-1 h-1, which is significantly enhanced when compared with that of their physical mixture (0.30 mmol g-1 h-1) and Pt-based counterpart (11.84 mmol g-1 h-1). This work provides a rational approach to the construction of noble-metal-free photocatalytic systems based on COFs to enhance hydrogen evolution performance. Hollow double-shell dyads have been constructed using covalent organic frameworks and transition metal sulfides, the double-shell architecture broadens light absorption, improves hydrogen evolution kinetics and reduces the photogenerated electron transfer resistance, resulting in high performance in photocatalytic hydrogen evolution reaction. image
Keyword ：
Covalent organic frameworks Covalent organic frameworks Dyad Dyad Hollow structure Hollow structure Hydrogen generation Hydrogen generation Photocatalysis Photocatalysis
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Meiying , Lv, Haowei , Dong, Beibei et al. Photoelectron Migration Boosted by Hollow Double-Shell Dyads Based on Covalent Organic Frameworks for Highly Efficient Photocatalytic Hydrogen Generation [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (17) . |
| MLA | Wang, Meiying et al. "Photoelectron Migration Boosted by Hollow Double-Shell Dyads Based on Covalent Organic Frameworks for Highly Efficient Photocatalytic Hydrogen Generation" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 17 (2024) . |
| APA | Wang, Meiying , Lv, Haowei , Dong, Beibei , He, Wenhao , Yuan, Daqiang , Wang, Xinchen et al. Photoelectron Migration Boosted by Hollow Double-Shell Dyads Based on Covalent Organic Frameworks for Highly Efficient Photocatalytic Hydrogen Generation . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (17) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Thermocatalytic nonoxidative ethane dehydrogenation(EDH)is a promising strategy for ethene produc-tion but suffers from intense energy consumption and poor catalyst durability;exploring technology that permits efficient EDH by solar energy remains a giant challenge.Herein,we present that an oxygen va-cancy(Ov)-rich LaVO4(LaV04-Ov)catalyst is highly active and stable for photocatalytic EDH,through a dynamic lattice oxygen(Olatt.)and Ov co-mediated mechanism.Irradiated by simulated sunlight at mild conditions,LaVO4-Ov effectively dehydrogenates undiluted ethane to produce C2H4 and CO with a con-version of 2.3％.By loading a small amount of Pt cocatalyst,the evolution and selectivity of C2H4 are en-hanced to 275 μmol h-1 g-1 and 96.8％.Of note,LaVO4-Ov appears nearly no carbon deposition after the reaction.The isotope tracked reactions reveal that the consumed Olatt.recuperates by exposing the used catalyst with O2,thus establishing a dynamic cycle of Olatt,and achieving a facile catalyst regeneration to preserve its intrinsic activity.The refreshed LaVO4-Ov exhibits superior reusability and delivers a turnover number of about 305.The Ov promotes photo absorption,boosts ethane adsorption/activation,and accel-erates charge separation/transfer,thus improving the photocatalytic efficiency.The possible photocatalytic EDH mechanism is proposed,considering the key intermediates predicted by density functional theory(DFT)and monitored by in-situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS).
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Fen Wei , Weichao Xue , Zhiyang Yu et al. Dynamic cooperations between lattice oxygen and oxygen vacancies for photocatalytic ethane dehydrogenation by a self-restoring LaVO4 catalyst [J]. | 中国化学快报（英文版） , 2024 , 35 (3) : 171-176 . |
| MLA | Fen Wei et al. "Dynamic cooperations between lattice oxygen and oxygen vacancies for photocatalytic ethane dehydrogenation by a self-restoring LaVO4 catalyst" . | 中国化学快报（英文版） 35 . 3 (2024) : 171-176 . |
| APA | Fen Wei , Weichao Xue , Zhiyang Yu , Xue Feng Lu , Sibo Wang , Wei Lin et al. Dynamic cooperations between lattice oxygen and oxygen vacancies for photocatalytic ethane dehydrogenation by a self-restoring LaVO4 catalyst . | 中国化学快报（英文版） , 2024 , 35 (3) , 171-176 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Strong excitonic effects are common in organic conjugated polymer semiconductors, severely hindering the generation of free charge carriers for conducting photocatalysis. Therefore, exploring new channels to modulate exciton dissociation in polymers is far-reaching in facilitating photocatalysis. A series of B-N Lewis pair functionalized conjugated polymers have been developed to minimize exciton effects by modulating charge transfer pathways. Theoretical studies have shown that introducing B-N Lewis pairs can dramatically increase the distance of charge transfer (D index) and the amount of electron transfer and reduce the Coulomb attraction energy (EC), which contributes to breaking the equilibrium of the coexistence of excitons and charge carriers. Further experimental results show that the singlet excitons are efficiently dissociated into more free-charge carriers under photoexcitation to participate in surface reactions. The optimized polymer PyPBM shows an exponential increase in photocatalytic hydrogen and hydrogen peroxide production performance by visible light illumination.
Keyword ：
B-N Lewis pair B-N Lewis pair Conjugated polymers Conjugated polymers Exciton binding energy Exciton binding energy Exciton effects Exciton effects Photocatalyst Photocatalyst
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Ru, Chenglong , Nie, Xiaoyu , Lan, Zhi-An et al. Regulation of Exciton Effects in Functionalized Conjugated Polymers by B-N Lewis Pairs for Visible-Light Photocatalysis [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| MLA | Ru, Chenglong et al. "Regulation of Exciton Effects in Functionalized Conjugated Polymers by B-N Lewis Pairs for Visible-Light Photocatalysis" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2024) . |
| APA | Ru, Chenglong , Nie, Xiaoyu , Lan, Zhi-An , Pan, Zhiming , Xing, Wandong , Wang, Sibo et al. Regulation of Exciton Effects in Functionalized Conjugated Polymers by B-N Lewis Pairs for Visible-Light Photocatalysis . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Covalent organic frameworks with unique pi architectures and pores could be developed as photocatalysts for transformations. However, they usually form pi-stacking layers, so that only surface layers function in photocatalysis. Here we report a strategy for developing vertically expanded frameworks to expose originally inaccessible active sites hidden in layers to catalysis. We designed covalently linked two-dimensional cobalt(II) porphyrin layers and explored coordination bonds to connect the cobalt(II) porphyrin layers with bidentate ligands via a three-component one-pot polymerization. The resultant frameworks expand the interlayer space greatly, where both the up and down faces of each cobalt(II) porphyrin layer are exposed to reactants. Unexpectedly, the vertically expanded frameworks increase skeleton oxidation potentials, decrease exciton dissociation energy, improve pore hydrophilicity and affinity to water, and facilitate water delivery. Remarkably, these positive effects work collectively in the photocatalysis of water oxidation into oxygen, with an oxygen production rate of 1155 mu mol g-1 h-1, a quantum efficiency of 1.24 % at 450 nm, and a turnover frequency of 1.39 h-1, which is even 5.1-fold as high as that of the pi-stacked frameworks and ranks them the most effective photocatalysts. This strategy offers a new platform for designing layer frameworks to build various catalytic systems for chemical transformations.
Keyword ：
Covalent organic frameworks Covalent organic frameworks Oxygen evolution Oxygen evolution Photocatalysis Photocatalysis Vertically expanded frameworks Vertically expanded frameworks Water oxidation Water oxidation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xie, Shuailei , Liu, Ruoyang , Liu, Nengyi et al. Vertically Expanded Covalent Organic Frameworks for Photocatalytic Water Oxidation into Oxygen [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| MLA | Xie, Shuailei et al. "Vertically Expanded Covalent Organic Frameworks for Photocatalytic Water Oxidation into Oxygen" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2024) . |
| APA | Xie, Shuailei , Liu, Ruoyang , Liu, Nengyi , Xu, Hetao , Chen, Xiong , Wang, Xinchen et al. Vertically Expanded Covalent Organic Frameworks for Photocatalytic Water Oxidation into Oxygen . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Poly (heptazine imide) (PHI), a classic 2D polymeric photocatalyst, represents a promising organic semiconductor for photocatalytic overall water splitting (POWS). However, since the key bottleneck in POWS of PHI remains unclear, its quantum efficiency of POWS is extremely restrained. To identify the key obstacle in POWS on the PHI, a series of PHI with different stacking modes is synthesized by tuning interlayer cations. The structural characterizations revealed that tuning the interlayer cations of PHI can induce rearrangements in interlayer stacking modes. Additionally, charge carriers dynamics uncover that optimizing the interlayer stacking modes of PHI can promote exciton diffusion and prolong the photoexcited electron lifetimes, thus improving the concentration of surface-reaching charge. More importantly, this confirms that the POWS activity of PHI is closely correlated with the interlayer stacking modes. This work offers new insight into structural regulation for governing charge-transport dynamics and the activity of 2D polymeric photocatalysts.
Keyword ：
charge transport charge transport interlayer stacking modes interlayer stacking modes overall water splitting overall water splitting photocatalysis photocatalysis poly (heptazine imide) poly (heptazine imide)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Pan, Zhiming , Zhang, Guigang , Zhang, Xirui et al. Unveiling the Key Obstacle in Photocatalytic Overall Water Splitting Reaction on Poly (heptazine imide) Semiconductors [J]. | SMALL , 2024 , 21 (1) . |
| MLA | Pan, Zhiming et al. "Unveiling the Key Obstacle in Photocatalytic Overall Water Splitting Reaction on Poly (heptazine imide) Semiconductors" . | SMALL 21 . 1 (2024) . |
| APA | Pan, Zhiming , Zhang, Guigang , Zhang, Xirui , Xing, Wandong , Zheng, Dandan , Wang, Sibo et al. Unveiling the Key Obstacle in Photocatalytic Overall Water Splitting Reaction on Poly (heptazine imide) Semiconductors . | SMALL , 2024 , 21 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Understanding the relationship of competitive adsorption between reactants is the prerequisite for high activity and selectivity in heterogeneous catalysis, especially the difference between the adsorption energies (E-ads) of two reactive intermediates in Langmuir-Hinshelwood (L-H) models. Using oxidative dehydrogenation of hydrogen sulfide (H2S-ODH) as a probe, we develop various metal single atoms on nitrogen-doped carbon (M-NDC) catalysts for controlling E-ads-H2S, E-ads-O-2 and investigating the difference in activity and selectivity. Combining theoretical and experimental results, a Sabatier relationship between the catalytic performance and E-ads-O-2/E-ads-H2S emerges. Mn-NDC as the optimal catalyst shows excellent H2S conversion (>90 %) and sulfur selectivity (>90 %) in a wide range of O-2 concentrations over 100 h. Such a high-efficiency performance is attributed to appropriate E-ads-H2S and E-ads-O-2 on Mn-N-4 sites, boosting redox cycle between Mn2+ and Mn3+, as well as preferential formation of sulfur. This work provides a fundamental guidance for designing Sabatier optimal catalysts in L-H models.
Keyword ：
high-efficiency reactivity descriptors high-efficiency reactivity descriptors nitrogen-doped carbon nitrogen-doped carbon Sabatier principle Sabatier principle selective oxidative desulfurization selective oxidative desulfurization single atoms single atoms
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Ye, Hanfeng , Xing, Wandong , Zhao, Fei et al. Sabatier Optimal of Mn-N4 Single Atom Catalysts for Selective Oxidative Desulfurization [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| MLA | Ye, Hanfeng et al. "Sabatier Optimal of Mn-N4 Single Atom Catalysts for Selective Oxidative Desulfurization" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2024) . |
| APA | Ye, Hanfeng , Xing, Wandong , Zhao, Fei , Wang, Jiali , Yang, Can , Hou, Yidong et al. Sabatier Optimal of Mn-N4 Single Atom Catalysts for Selective Oxidative Desulfurization . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Photocatalytic synthesis of H2O2 is an advantageous and ecologically sustainable alternative to the conventional anthraquinone process. However, achieving high conversion efficiency without sacrificial agents remains a challenge. In this study, two covalent organic frameworks (COF-O and COF-C) were prepared with identical skeletal structures but with their pore walls anchored to different alkyl chains. They were used to investigate the effect of the chemical microenvironment of pores on photocatalytic H2O2 production. Experimental results reveal a change of hydrophilicity in COF-O, leading to suppressed charge recombination, diminished charge transfer resistance, and accelerated interfacial electron transfer. An apparent quantum yield as high as 10.3 % (lambda=420 nm) can be achieved with H2O and O-2 through oxygen reduction reaction. This is among the highest ever reported for polymer photocatalysts. This study may provide a novel avenue for optimizing photocatalytic activity and selectivity in H2O2 generation.
Keyword ：
Hydrazone-lined covalent organic frameworks Hydrazone-lined covalent organic frameworks Microenvironment modulation Microenvironment modulation Photocatalytic H2O2 production Photocatalytic H2O2 production Selectivity Selectivity
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xie, Zhipeng , Chen, Xiong , Wang, Wenbin et al. Variation of Chemical Microenvironment of Pores in Hydrazone-Linked Covalent Organic Frameworks for Photosynthesis of H2O2 [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (39) . |
| MLA | Xie, Zhipeng et al. "Variation of Chemical Microenvironment of Pores in Hydrazone-Linked Covalent Organic Frameworks for Photosynthesis of H2O2" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 39 (2024) . |
| APA | Xie, Zhipeng , Chen, Xiong , Wang, Wenbin , Ke, Xiating , Zhang, Xirui , Wang, Sibo et al. Variation of Chemical Microenvironment of Pores in Hydrazone-Linked Covalent Organic Frameworks for Photosynthesis of H2O2 . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (39) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Polymeric carbon nitride (PCN) photocatalysts have the potential to remove NO from ambient air. However, the catalytic performance of PCN is limited by the lack of sufficient active sites to effectively activate molecular oxygen. Herein, we report the construction of photocatalysts consisting of defective-activated-carbon and PCN via amide bond formation. This photocatalyst not only significantly enhances the chemisorption of O2, but also accelerates the activation of molecular oxygen and oxidation of NO by creating a new electron transport pathway. This work provides a new strategy for polymer photocatalysts to promote molecular oxygen activation by constructing close-contact interfaces through amide bonding. © 2024 Elsevier B.V.
Keyword ：
Activated carbon Activated carbon Amides Amides Carbon nitride Carbon nitride Chemical activation Chemical activation Electron transport properties Electron transport properties Molecular oxygen Molecular oxygen Oxidation Oxidation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Fang, Zixun , Zhou, Min , Lin, Zheng et al. Amide bonded polymeric carbon nitride for photocatalytic O2 activation and NO oxidation [J]. | Applied Catalysis B: Environmental , 2024 , 353 . |
| MLA | Fang, Zixun et al. "Amide bonded polymeric carbon nitride for photocatalytic O2 activation and NO oxidation" . | Applied Catalysis B: Environmental 353 (2024) . |
| APA | Fang, Zixun , Zhou, Min , Lin, Zheng , Yang, Can , Hou, Yidong , Yu, Jimmy C. et al. Amide bonded polymeric carbon nitride for photocatalytic O2 activation and NO oxidation . | Applied Catalysis B: Environmental , 2024 , 353 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Over the past half-century, significant efforts have been dedicated to the photocatalytic H2 production from H2O under UV–visible light irradiation. These endeavors have yielded remarkable results, with efficiency levels now approaching near 100 % apparent quantum yields, notably utilizing inorganic semiconducting materials such as modified Al-doped SrTiO3 photocatalysts. Meanwhile, advancements in organic polymer semiconducting materials, exemplified by g-C3N4, have led to substantial improvements in the efficiency of photocatalytic overall water splitting for H2 evolution reaction. These improvements, achieved through chemical engineering methods and molecular-level modifications, have resulted in an apparent quantum yield of 69 % at 405 nm, accompanied by significant red-shifting of optical absorption to 1400 nm. These developments are presented in chronological order over the past half-century, underscoring the ongoing quest for innovative breakthroughs to enable large-scale practical applications of solar hydrogen production. Key considerations in this pursuit include efficiency, stability, cost-effectiveness, and the independent evolution of H2 and O2. © 2024 Chongqing University
Keyword ：
g-C3N4 g-C3N4 Inorganic semiconducting material Inorganic semiconducting material Organic polymer semiconducting material Organic polymer semiconducting material Photocatalytic hydrogen production Photocatalytic hydrogen production TiO2 TiO2 Titanate Titanate
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Su, J. , Zhang, J. , Chai, S. et al. Developments of photocatalytic overall water splitting to produce H2 [J]. | Nano Materials Science , 2024 . |
| MLA | Su, J. et al. "Developments of photocatalytic overall water splitting to produce H2" . | Nano Materials Science (2024) . |
| APA | Su, J. , Zhang, J. , Chai, S. , Anpo, M. , Fang, Y. , Wang, X. . Developments of photocatalytic overall water splitting to produce H2 . | Nano Materials Science , 2024 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
