Chinese Chemical Letters最新文献_第3页

Structuring MoO3-polyoxometalate hybrid superstructures to boost electrocatalytic hydrogen evolution reaction 构建 MoO3-聚氧化金属酸盐混合超结构，促进电催化氢气进化反应

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-15 DOI: 10.1016/j.cclet.2024.110467

Bowen Li, Ting Wang, Ming Xu, Yuqi Wang, Zhaoxing Li, Mei Liu, Wenjing Zhang, Ming Feng

{"title":"Structuring MoO3-polyoxometalate hybrid superstructures to boost electrocatalytic hydrogen evolution reaction","authors":"Bowen Li, Ting Wang, Ming Xu, Yuqi Wang, Zhaoxing Li, Mei Liu, Wenjing Zhang, Ming Feng","doi":"10.1016/j.cclet.2024.110467","DOIUrl":"10.1016/j.cclet.2024.110467","url":null,"abstract":"<div><div>Improving the surface atoms utilization efficiency of catalysts is extremely important for large-scale H2 production by electrochemical water splitting, but it remains a great challenge. Herein, we reported two kinds of MoO3-polyoxometalate hybrid nanobelt superstructures (MoO3-POM HNSs, POM = PW12O40 and SiW12O40) using a simple hydrothermal method. Such superstructure with highly uniform nanoparticles as building blocks can expose more surface atoms and emanate increased specific surface area. The incorporated POMs generated abundant oxygen vacancies, improved the electronic mobility, and modulated the surface electronic structure of MoO3, allowing to optimize the H* adsorption/desorption and dehydrogenation kinetics of catalyst. Notably, the as-prepared MoO3-PW12O40 HNSs electrodes not only displayed the low overpotentials of 108 mV at 10 mA/cm2 current density in 0.5 mol/L H2SO4 electrolyte but also displayed excellent long-term stability. The hydrogen evolution reaction (HER) performance of MoO3-POM superstructures is significantly better than that of corresponding bulk materials MoO3@PW12O40 and MoO3@SiW12O40, and the overpotentials are about 8.3 and 4.9 times lower than that of single MoO3. This work opens an avenue for designing highly surface-exposed catalysts for electrocatalytic H2 production and other electrochemical applications.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110467"},"PeriodicalIF":9.4,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EDA-complexes-enabled photochemical synthesis of α-amino acids with imines and tetrabutylammonium oxalate 用亚胺和草酸四丁基铵光化学合成α-氨基酸的 EDA 复合物

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-14 DOI: 10.1016/j.cclet.2024.110446

Min-Hang Zhou, Jun Jiang, Wei-Min He

引用次数: 0

Recent progress on non-metallic carbon nitride for the photosynthesis of H2O2: Mechanism, modification and in-situ applications 用于 H2O2 光合作用的非金属氮化碳的最新进展：机理、改性和原位应用

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-14 DOI: 10.1016/j.cclet.2024.110457

Hao Lv , Zhi Li , Peng Yin , Ping Wan , Mingshan Zhu

{"title":"Recent progress on non-metallic carbon nitride for the photosynthesis of H2O2: Mechanism, modification and in-situ applications","authors":"Hao Lv , Zhi Li , Peng Yin , Ping Wan , Mingshan Zhu","doi":"10.1016/j.cclet.2024.110457","DOIUrl":"10.1016/j.cclet.2024.110457","url":null,"abstract":"<div><div>Photocatalytic hydrogen peroxide (H2O2) production has been considered as a promising strategy for H2O2 synthesis due to its environmentally friendly. Among various photocatalysts, carbon nitride-based materials are excellent candidates for H2O2 production because of their excellent visible-light response, low cost and high stability. In this review, we summarize in detail the research progress on the photocatalytic production of H2O2 by carbon nitride. First, we summarize the basic principles of photocatalysis and photocatalytic H2O2 production. Second, the classification and modification methods of carbon-nitride-based materials are discussed, including morphology modulation, noble metal loading, defect control, heterojunction regulation, molecular structure engineering and elemental doping. Finally, the different in-situ applications of H2O2 via photosynthesis were discussed, including disinfection and antibiotic resistant genes degradation, organic pollutants degradation, medical applications and fine chemical synthesis. This review brings great promise for in-situ H2O2 photosynthesis, which is expected to serve as a key component in future applications.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110457"},"PeriodicalIF":9.4,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modular miniaturized synthesis and in situ biological evaluation facilitate rapid discovery of potent MraY inhibitors as antibacterial agents 模块化微型合成和原位生物评估有助于快速发现作为抗菌剂的强效 MraY 抑制剂

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-12 DOI: 10.1016/j.cclet.2024.110455

Mianling Yang , Meehyein Kim , Peng Zhan

引用次数: 0

A composite hydrogel with porous and homogeneous structure for efficient osmotic energy conversion 一种具有多孔均匀结构的复合水凝胶，可实现高效渗透能量转换

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-12 DOI: 10.1016/j.cclet.2024.110449

Guilong Li, Wenbo Ma, Jialing Zhou, Caiqin Wu, Chenling Yao, Huan Zeng, Jian Wang

{"title":"A composite hydrogel with porous and homogeneous structure for efficient osmotic energy conversion","authors":"Guilong Li, Wenbo Ma, Jialing Zhou, Caiqin Wu, Chenling Yao, Huan Zeng, Jian Wang","doi":"10.1016/j.cclet.2024.110449","DOIUrl":"10.1016/j.cclet.2024.110449","url":null,"abstract":"<div><div>With the impact of energy crisis and environmental problems, it is urgent to develop green sustainable energy. Osmotic energy stored in the salinity difference between seawater and river water is one of the sustainable, abundant, and renewable energy. However, the membranes used to capture osmotic energy by reverse electrodialysis (RED) always suffer from low ion selectivity, low stability and low power. Hydrogels with three-dimensional (3D) networks have shown great potential for ion transportation and energy conversion. In this work, based on the homogeneity and porosity characteristics of acrylamide (AM) hydrogel, as well as the remarkable stability and abundant negative charge of 3-sulfopropyl acrylate potassium salt (SPAK), a high-performance AM/SPAK cation-selective hydrogel membrane was successfully developed for harvesting osmotic energy. Compared to AM hydrogels, utilizing AM/SPAK as a monomer mixture greatly facilitated the preparation of homogeneous polymers, exhibiting a porous structure, exceptional ion selectivity, and remarkable stability. A maximum output power density of 13.73 W/m2 was achieved at a 50-fold NaCl concentration gradient, exceeding the commercial requirement of 5 W/m2. This work broadens the idea for the construction and application of composite hydrogel in high efficiency osmotic energy conversion.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110449"},"PeriodicalIF":9.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boron/phosphorus co-doped nitrogen-rich carbon nanofiber with flexible anode for robust sodium-ion battery 具有柔性阳极的硼/磷共掺富氮碳纳米纤维，可用于制造坚固耐用的钠离子电池

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-12 DOI: 10.1016/j.cclet.2024.110452

Jiaojiao Liang , Youming Peng , Zhichao Xu , Yufei Wang , Menglong Liu , Xin Liu , Di Huang , Yuehua Wei , Zengxi Wei

{"title":"Boron/phosphorus co-doped nitrogen-rich carbon nanofiber with flexible anode for robust sodium-ion battery","authors":"Jiaojiao Liang , Youming Peng , Zhichao Xu , Yufei Wang , Menglong Liu , Xin Liu , Di Huang , Yuehua Wei , Zengxi Wei","doi":"10.1016/j.cclet.2024.110452","DOIUrl":"10.1016/j.cclet.2024.110452","url":null,"abstract":"<div><div>Flexible energy storage devices have been paid much attention and adapts to apply in various fields. Benefiting from the active sites of boron (B) and phosphorus (P) doping materials, co-doped carbon materials are widely used in energy storage devices for the enhanced electrochemical performance. Herein, B and P co-doped flexible carbon nanofibers with nitrogen-rich (B-P/NC) are investigated with electrospinning for sodium-ion battery. The flexible of binderless B-P/NC with annealing of 600 °C (B-P/NC-600) exhibits the remarkable performance for the robust capacity of 200 mAh/g at 0.1 A/g after 500 cycles and a durable reversible capacity of 160 mAh/g even at 1 A/g after 12,000 cycles, exhibiting the equally commendable stability of flexible B-P/NC-600. In addition, B-P/NC-600 delivers the reversible capacity of 265 mAh/g with the test temperature of 60 °C. More importantly, the flexible B-P/NC-600 is fabricated as anode for the whole battery, delivering the capacity of 90 mAh/g at 1 A/g after 200 cycles. Meanwhile, theoretical calculation further verified that boron and phosphorus co-doping can improve the adsorption capacity of nitrogen carbon materials. The favorable performance of flexible B-P/NC-600 can be ascribed to the nitrogen-rich carbon nanofibers with three-dimensional network matrix for the more active site of boron and phosphorus co-doping. Our work paves the way for the improvement of flexible anodes and wide-operating temperature of sodium-ion batteries by doping approach of much heteroatom.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 1","pages":"Article 110452"},"PeriodicalIF":9.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to ‘How ligand coordination and superatomic-states accommodate the structure and property of a metal cluster: Cu4 (dppy)4 Cl2 vs. Cu21 (dppy)10 with altered photoluminescence’ Chin. Chem. Lett. 2024, 35, 108340 配体配位和超原子态如何影响金属簇的结构和性质？Cu4 (dppy)4 Cl2 vs. Cu21 (dppy)10 with altered photoluminescence' Chin.Chem.2024, 35, 108340

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-12 DOI: 10.1016/j.cclet.2024.109912

Haiming Wu , Gaya N. Andrew , Rajini Anumula , Zhixun Luo

引用次数: 0

Dual atom-bridge effect promoting interfacial charge transfer in 2D/2D Cs3Bi2Br9/BiOBr epitaxial heterojunction for efficient photocatalysis 促进二维/二维 Cs3Bi2Br9/BiOBr 外延异质结中界面电荷转移的双原子桥效应，实现高效光催化

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-11 DOI: 10.1016/j.cclet.2024.110430

Yuan Teng , Zichun Zhou , Jinghua Chen , Siying Huang , Hongyan Chen , Daibin Kuang

{"title":"Dual atom-bridge effect promoting interfacial charge transfer in 2D/2D Cs3Bi2Br9/BiOBr epitaxial heterojunction for efficient photocatalysis","authors":"Yuan Teng , Zichun Zhou , Jinghua Chen , Siying Huang , Hongyan Chen , Daibin Kuang","doi":"10.1016/j.cclet.2024.110430","DOIUrl":"10.1016/j.cclet.2024.110430","url":null,"abstract":"<div><div>Optimizing the interfacial quality of halide perovskites heterojunction to promote the photogenerated charge separation is of great significance in photocatalytic reactions. However, the delicately regulation of interfacial structure and properties of halide perovskites hybrid is still a big challenge owing to the growth uncontrollability and incompatibility between different constituents. Here we use BiOBr nanosheets as the start-template to in situ epitaxially grow Cs3Bi2Br9 nanosheets by “cosharing” Bi and Br atoms strategy for designing a 2D/2D Cs3Bi2Br9/BiOBr heterojunction. Systematic studies show that the epitaxial heterojunction can optimize the synergistic effect of BiOBr and Cs3Bi2Br9 via the formation of tight-contact interfaces, strong interfacial electronic coupling and charge redistribution, which can not only drive the Z-scheme charge transfer mechanism to greatly promote the spatial separation of electron-hole pairs, but also modulate the interfacial electronic structure to facilitate the adsorption and activation of toluene molecules. The heterojunction exhibited 62.3 and 2.4-fold photoactivity improvement for toluene oxidation to benzaldehyde than parental BiOBr and Cs3Bi2Br9, respectively. This study not only proposed a novel dual atom-bridge protocol to engineer high-quality perovskite heterojunctions, but also uncovered the potential of heterojunction in promoting electron-hole separation as well as the application in photocatalytic organic synthesis.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 2","pages":"Article 110430"},"PeriodicalIF":9.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient propane dehydrogenation catalyzed by Ru nanoparticles anchored on a porous nitrogen-doped carbon matrix 锚定在多孔掺氮碳基体上的 Ru 纳米粒子催化的高效丙烷脱氢反应

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-11 DOI: 10.1016/j.cclet.2024.110444

Tianyi Yang , Fangxi Su , Dehuan Shi , Shenghong Zhong , Yalin Guo , Zhaohui Liu , Jianfeng Huang

引用次数: 0

Additive regulating Li+ solvation structure to construct dual LiF−rich electrode electrolyte interphases for sustaining 4.6 V Li||LiCoO2 batteries 通过添加剂调节 Li+ 溶解结构，构建富含 LiF 的双电极电解质相间层，用于维持 4.6 V Li||LiCoO2 电池的电压

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2024-09-11 DOI: 10.1016/j.cclet.2024.110014

Xi Tang , Chunlei Zhu , Yulu Yang , Shihan Qi , Mengqiu Cai , Abdullah N. Alodhayb , Jianmin Ma

引用次数: 0