IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2024.100510

Yiwen Yuan, Lingyao Wang, Yuanbin Zhang

引用次数: 0

Improved photocatalytic activity of SrBi2Nb2O9 for the degradation of ciprofloxacin hydrochloride via piezoelectric-enhanced charge transfer 提高SrBi2Nb2O9压电增强电荷转移降解盐酸环丙沙星的光催化活性

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100569

Shanshan Yan , Sihai Sun , Zhiwu Chen, Xin Wang

{"title":"Improved photocatalytic activity of SrBi2Nb2O9 for the degradation of ciprofloxacin hydrochloride via piezoelectric-enhanced charge transfer","authors":"Shanshan Yan , Sihai Sun , Zhiwu Chen, Xin Wang","doi":"10.1016/j.cjsc.2025.100569","DOIUrl":"10.1016/j.cjsc.2025.100569","url":null,"abstract":"<div><div>Piezo-photocatalysis is an emerging photocatalytic technology in which the piezoelectric electric field drives photogenerated carriers to separate, thereby improving the photocatalytic activity of the catalyst. Herein, solid phase and one-step molten salt processes were used to prepare SrBi<sub>2</sub>Nb<sub>2</sub>O<sub>9</sub> (SBN) powders with granular and sheet morphologies, respectively. The influence of micromorphology on the piezo-photocatalytic performances of SBN was determined by degrading ciprofloxacin hydrochloride (CIP). SBN nanosheets demonstrate remarkable piezo-photocatalytic performance, achieving an 89.13% CIP degradation rate in 60 min and an apparent rate constant of 34.73 × 10<sup>−3</sup> min<sup>−1</sup>. This performance is approximately 2.65 times higher than that of granular SBN and outperformed many recently reported piezo-photocatalysts under similar experimental conditions. Free radical trapping techniques, electron spin resonance spectroscopy and liquid chromatography-mass spectrometry are utilized to study the potential paths and mechanisms of CIP degradation. Piezoresponse force microscopy and finite element simulation show that the piezo-response of SBN nanosheets is significantly higher than that of granular SBN. SBN nanosheets achieve high degradation efficiency due to their optimized conduction band positions and enhanced piezoelectric effect, facilitated by the two-dimensional nanosheet structures. In this work, the piezoelectric internal electric field of piezoelectric catalysts can be increased by tuning the catalyst morphology, which points to a possible direction for the production of high-performance piezoelectric catalysts.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 5","pages":"Article 100569"},"PeriodicalIF":5.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

CuMoRuFeW high entropy alloy surfaced nanorods: Superior electrochemical CO2 reduction to ethylene CuMoRuFeW高熵合金表面纳米棒：卓越的电化学CO2还原为乙烯

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100571

Jundi Qin , Dezhong Hu , Dong Xiang , Xiongwu Kang

{"title":"CuMoRuFeW high entropy alloy surfaced nanorods: Superior electrochemical CO2 reduction to ethylene","authors":"Jundi Qin , Dezhong Hu , Dong Xiang , Xiongwu Kang","doi":"10.1016/j.cjsc.2025.100571","DOIUrl":"10.1016/j.cjsc.2025.100571","url":null,"abstract":"<div><div>Electrocatalytic carbon dioxide reduction (CO<sub>2</sub>ER) driven by renewable energy sources to produce high-value-added chemicals is a highly promising strategy for achieving a closed carbon cycle. Cu is the only highly active catalyst capable of producing multi-carbon (C<sub>2+</sub>) products through CO<sub>2</sub>ER. However, due to the constraints of existing scaling relationships and competing hydrogen evolution reaction, it is still challenging to achieve high selectivity of a single desired product. In this work, high-entropy alloy (HEA) CuMoRuFeW surface skin on Cu nanorods was obtained by a one-pot co-reduction method. It is revealed that Fe could effectively facilitate the co-reduction of Mo and W precursors and the formation of HEA surface on Cu nanorod. The Faradaic efficiency (FE) for ethylene and ethanol in CO<sub>2</sub>ER reaches 49.5% and 20.4%, respectively, with a total FE<sub>C2</sub> of 69.9% and current density of 250 mA cm<sup>−2</sup> at −1.1 V <em>vs</em>. RHE. Theoretical calculations reveal that the Cu–W–Fe combination site is more active in CO<sub>2</sub> activation and C–C coupling for C<sub>2</sub> products than other sites. This work underscores the importance of HEA in overcoming the constraints of linear scaling relationships and improving the selectivity for C<sub>2</sub> products in CO<sub>2</sub>ER.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 5","pages":"Article 100571"},"PeriodicalIF":5.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Recent advances in anion exchange membranes 阴离子交换膜的研究进展

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100563

Jiachen Gao , Hailong Zhang , Xue Zhao , Yafu Wang , Houen Zhu , Xiangyi Kong , Yan Liang , Ting Ou , Rui Ren , Yulan Gu , Yanyong Su , Jiangwei Zhang

{"title":"Recent advances in anion exchange membranes","authors":"Jiachen Gao , Hailong Zhang , Xue Zhao , Yafu Wang , Houen Zhu , Xiangyi Kong , Yan Liang , Ting Ou , Rui Ren , Yulan Gu , Yanyong Su , Jiangwei Zhang","doi":"10.1016/j.cjsc.2025.100563","DOIUrl":"10.1016/j.cjsc.2025.100563","url":null,"abstract":"<div><div>Anion exchange membrane (AEM), as a kind of key membrane materials, has shown great application potential in many electrochemical fields, and remarkable progress has been made in related research in recent years. In this paper, the research status of AEM is reviewed, including its material design, preparation method, performance optimization and application in the fields of hydrogen production by electrolytic water, fuel cell and water treatment. In terms of material design, new polymer skeleton structures are emerging to regulate the stability of ion conduction channels and membranes by introducing specific functional groups or changing the molecular chain structure. The preparation methods have been gradually expanded from the traditional solution casting method to more advanced technologies, such as interfacial polymerization and electrostatic spinning, which effectively improve the microstructure and property uniformity of the film. Performance optimization focuses on improving ion conductivity, reducing membrane swelling rate and enhancing chemical stability, and a variety of modification strategies are developed and applied. Despite the achievements made so far, there are still some challenges, such as the lack of long-term stability in highly alkaline environments. Future research needs to further explore new material systems and preparation processes in order to promote the wide application and sustainable development of AEM technology in energy, environmental protection and other fields.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 5","pages":"Article 100563"},"PeriodicalIF":5.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

MOF-driven interaction engineering in solid polymer electrolytes for durable lithium metal batteries 耐用锂金属电池固体聚合物电解质中mof驱动的相互作用工程

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100517

Liyang Liu , De-Xiang Zhang , Tian Wen

引用次数: 0

Highly dispersed Ni–O site on Ni catalysts for efficient and durable light-driven dry reforming of CH4 at ambient conditions Ni催化剂上高度分散的Ni - o位用于环境条件下高效、持久的光驱动CH4干重整

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100570

Xia Gao , Shuaikang Sang , Enquan Zhu , Lihua Cai , Chang Liu , Ferdi Karadas , Chao Zhang , Jingxiang Low , Yujie Xiong

{"title":"Highly dispersed Ni–O site on Ni catalysts for efficient and durable light-driven dry reforming of CH4 at ambient conditions","authors":"Xia Gao , Shuaikang Sang , Enquan Zhu , Lihua Cai , Chang Liu , Ferdi Karadas , Chao Zhang , Jingxiang Low , Yujie Xiong","doi":"10.1016/j.cjsc.2025.100570","DOIUrl":"10.1016/j.cjsc.2025.100570","url":null,"abstract":"<div><div>Ni-based catalysts hold great potential in the light-driven dry reforming of methane (DRM) for syngas production due to their low cost and comparable catalytic performance to conventional noble-metal catalysts. However, the currently available Ni-based catalysts are confronted with low light-driven DRM efficiency and poor stability attributed to the coking. Herein, an atomically dispersed Ni-loaded CeO<sub>2</sub> (Ni/CeO<sub>2</sub>) for light-driven DRM is prepared by employing a polyol-mediated doping method to allow the high loading concentration of Ni on the CeO<sub>2</sub>, which overcomes the conventional atomically dispersed metal problem of low loading content. The atomically dispersed nature of the Ni can induce enormous CH<sub>4</sub> activation sites for the reaction and photothermal effects for driving the reaction, while the CeO<sub>2</sub> can facilitate CO<sub>2</sub> activation. Therefore, the optimized atomically dispersed Ni-loaded CeO<sub>2</sub> demonstrates an excellent light-driven DRM performance for H<sub>2</sub> (626.5 mmol g<sub>cat</sub><sup>−1</sup> h<sup>−1</sup>) and CO (728.5 mmol g<sub>cat</sub><sup>−1</sup> h<sup>−1</sup>) production. More importantly, the optimized sample sustains its DRM performance after 100 h of continuous test, and such excellent stability of the presence of enormous Ni–O pairs can prevent the rapid conversion of CH<em><sub>x</sub></em> intermediates into coke. This work demonstrates the meticulous design of non-noble metal catalysts for the light-driven DRM with both high performance and stability.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 5","pages":"Article 100570"},"PeriodicalIF":5.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Construction of zeolite loaded ultra-small Ni nanoparticle catalysts 沸石负载超小镍纳米颗粒催化剂的构建

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100516

Linlin Duan , Zaiwang Zhao

引用次数: 0

Volatolomics-based quality identification of Lycium barbarum using cMOF thin film chemiresistors 基于挥发组学的cof薄膜化学电阻器枸杞品质鉴别

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100573

Lin-An Cao , Yi-Qian Li , Lu Sun , Sai Chu , Yun-Fei Huo , Xiao-Qin Li , Jia-Hui Guo , Fang-Li Yuan , Kenichi Otake , Dai-Lian Wang , Ming-Shui Yao

{"title":"Volatolomics-based quality identification of Lycium barbarum using cMOF thin film chemiresistors","authors":"Lin-An Cao , Yi-Qian Li , Lu Sun , Sai Chu , Yun-Fei Huo , Xiao-Qin Li , Jia-Hui Guo , Fang-Li Yuan , Kenichi Otake , Dai-Lian Wang , Ming-Shui Yao","doi":"10.1016/j.cjsc.2025.100573","DOIUrl":"10.1016/j.cjsc.2025.100573","url":null,"abstract":"<div><div>The sulfur-fumigation process not only induces the chemical transformation of <em>Lycium barbarum</em> (Lb, a widely used traditional Chinese medicine) but also severely influences human health. Given the existing challenges like the complex and time-consuming operation, as well as the high technical demands of the current detection methods for sulfur-fumed <em>Lycium barbarum</em> (SF-Lb), this paper employs a simple chemiresistor to carry out discrimination research between Lb and SF-Lb which have significant differences in volatolomics. The sensor is constructed by a conductive metal-organic framework (cMOF) thin film, Cu<sub>3</sub>(HHTP)<sub>2</sub>, due to its abundant active sites, excellent electron transfer performance as well as the capacity to detect specific groups of volatile organic compounds (VOCs). Consequently, the response values of Cu<sub>3</sub>(HHTP)<sub>2</sub>-based sensor to 0.5 g SF-Lb (151.74%) are significantly higher than those to normal Lb (80.07%), identifying SF-Lb simply and rapidly with an accuracy of ∼100%. Our work investigates volatolomics of SF-Lb and establishes a new rapid discrimination method for sulfur-fumed traditional Chinese herbs.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 5","pages":"Article 100573"},"PeriodicalIF":5.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Level-shifted embedded cluster method may offer a viable alternative for the simulation of metal oxides 电平移位嵌入簇法为金属氧化物的模拟提供了一种可行的替代方法

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2024.100471

Zi-Jian Zhou, Xin-Ping Wu

引用次数: 0

Supramolecular catenation enables high-capacity hydrogen storage 超分子阳离子化使高容量储氢成为可能

IF 5.9 4区化学

结构化学 Pub Date : 2025-05-01 DOI: 10.1016/j.cjsc.2025.100512

Wenqi Wang, Liuliu Long, Yue-Biao Zhang

引用次数: 0

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