Xiangyu Meng, Yuening Wang, Xiaoyu Song, Yue Liu, Yujiao Xie, Lei Xu, Jian Yu, Lin Qiu, Xiaotian Wang and Jie Lin
{"title":"Application and development of SERS technology in detection of VOC gases","authors":"Xiangyu Meng, Yuening Wang, Xiaoyu Song, Yue Liu, Yujiao Xie, Lei Xu, Jian Yu, Lin Qiu, Xiaotian Wang and Jie Lin","doi":"10.1039/D4QM00812J","DOIUrl":"https://doi.org/10.1039/D4QM00812J","url":null,"abstract":"<p >Volatile organic compounds (VOCs), are recognized as critical environmental contaminants and cancer biomarkers, highlighting the significance of their trace detection for environmental conservation and human health. Surface-enhanced Raman spectroscopy (SERS) technology has emerged as a promising tool in this domain, offering unparalleled sensitivity and the ability to provide molecular fingerprints for probes. Despite the inherent disadvantages of gaseous molecules being difficult to adsorb on solid substrates, researchers have made great efforts to overcome these obstacles. This comprehensive review delineates the recent advancements and applications of SERS technology in the detection of VOCs, encompassing environmental monitoring and the analysis of exhaled breath. A particular focus is placed on the innovative design of substrate materials and strategies for enhancing the capture of gas molecules, including metal–organic frameworks (MOFs), layered double hydroxides (LDHs), microfluidic chips, and other substrates. Finally, we summarized the current challenges confronting SERS technology in VOC detection and provided insights into potential prospects for future development.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 3","pages":" 349-366"},"PeriodicalIF":6.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaiyue Song, Cong Jiang, Shaorong Huang and Xianglong Li
{"title":"Exogenous/endogenous stimuli-responsive nanocatalysts trigger in situ chemical reactions for tumor catalytic therapy: an up-to-date mini-review","authors":"Kaiyue Song, Cong Jiang, Shaorong Huang and Xianglong Li","doi":"10.1039/D4QM00833B","DOIUrl":"https://doi.org/10.1039/D4QM00833B","url":null,"abstract":"<p >The principle of the nanocatalytic medicine strategy is introducing nanocatalysts into tumor tissues and triggering specific chemical reactions through endogenous/exogenous stimuli to convert low/non-toxic exogenously delivered or endogenous substances into therapeutic products with high cytotoxicity. In recent years, the nanocatalytic medicine strategy has been proven to be effective in achieving tumor catalytic therapy, which is expected to reduce side effects and decrease the occurrence of drug resistance. This mini-review briefly outlines typical applications and recent advances in nanocatalyst-triggered <em>in situ</em> chemical reactions in tumor catalytic therapy. Special attention is paid to the design of nanocatalysts related to endogenous and exogenous stimuli (<em>e.g.</em>, light, heat, ultrasound, <em>etc.</em>). Finally, challenges and future opportunities for advancing nanocatalysts are highlighted to facilitate the realization of early clinical applications of nanocatalytic medicine strategies.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 189-203"},"PeriodicalIF":6.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hua-Long Li, Zeng-Min Xue, Guang Yang, Fei Meng, Hong-Tao Lin, Wen-Xuan Zhao, Shu-Hai Chen and Chuan-Zeng Wang
{"title":"Pyrene-based, red-emitting, aggregation-induced emission luminogens: from structural construction to anti-counterfeiting applications†","authors":"Hua-Long Li, Zeng-Min Xue, Guang Yang, Fei Meng, Hong-Tao Lin, Wen-Xuan Zhao, Shu-Hai Chen and Chuan-Zeng Wang","doi":"10.1039/D4QM00927D","DOIUrl":"https://doi.org/10.1039/D4QM00927D","url":null,"abstract":"<p >Herein, we demonstrated a novel approach to construct pyrene-based, high-efficiency, red-emitting molecules. Both of the as-synthesized luminogens exhibited aggregation-induced enhanced emission (AIEE) properties and distinct mechanochromic behavior with a blue-shift for <strong>DCI-Py-1</strong> (13 nm) and red-shift for <strong>DCI-Py-2</strong> (29 nm). The typical, yet rare, pyrene-based, red-emitting molecules with <em>λ</em><small><sub>em</sub></small> = 686 nm open up new avenues to design near-infrared emitting pyrene-based photoelectric materials. Further studies revealed that both of these materials can be utilized for anti-counterfeiting stamps and fingerprint extraction.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 318-324"},"PeriodicalIF":6.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ziyong Li, Jinzhao Song, Qilian Wang, Yongliang Feng, Qingxin Song, Sixin Wang, Qianqian Nie, Fan He, Haining Zhang and Hui Guo
{"title":"Near-infrared II photochromic behavior triggered by green light in an in situ protonated dithienylethene functionalized by quinoxalinone moieties†","authors":"Ziyong Li, Jinzhao Song, Qilian Wang, Yongliang Feng, Qingxin Song, Sixin Wang, Qianqian Nie, Fan He, Haining Zhang and Hui Guo","doi":"10.1039/D4QM00719K","DOIUrl":"https://doi.org/10.1039/D4QM00719K","url":null,"abstract":"<p >Exploiting the near-infrared (NIR) photochromic dithienylethenes (DTEs) triggered by visible light is urgently needed for various biological scenarios. However, all the NIR photochromic DTEs reported so far are located in the first NIR window (NIR-I, 700–900 nm), which usually shows shallower penetration in biological tissues due to autofluorescence and photon scattering compared to NIR light in the second window (NIR-II, 1000–1700 nm). Herein, we present a novel quinoxalinone-functionalized DTE derivative (<strong>QDTE</strong>) with acceptor (A)–DTE (D)–acceptor (A) structural features, in which electron-withdrawing quinoxalinone groups ensure visible light-driven NIR I photochromism. Besides, the facile protonation of the quinoxalinone moieties favors the formation of the more electron-deficient A′–D–A′-type DTE (<strong>QDTE-2H</strong>, where A′ is a stronger electron-withdrawing unit) for a unique NIR II photochromism by reducing the HOMO–LUMO energy gap of a closed isomer after protonation. As expected, the resulting <strong>QDTE</strong> displays a blue light-controlled NIR I photochromic performance in various solvents. Furthermore, an unprecedented green light-triggered NIR II photochromism for the <em>in situ</em> protonated <strong>QDTE-2H</strong> is successfully implemented in CHCl<small><sub>3</sub></small> and toluene in the presence of trifluoroacetic acid (TFA), representing the first case of NIR II photochromic DTE. By virtue of these properties, <strong>QDTE</strong> has been successfully applied in dual information encryption, demonstrating its versatility in functional materials.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 234-242"},"PeriodicalIF":6.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ke-Ke Chang, Wan-Feng Xiong, Yu-Ting Wen, Bin-Bin Feng, Hong-Fang Li, Teng Zhang, Yuan-Biao Huang, Duan-Hui Si and Rong Cao
{"title":"Synergistic enhancement of the electrocatalytic reduction of CO2 to hydrocarbons at a large-sized Cu@Ag electrode†","authors":"Ke-Ke Chang, Wan-Feng Xiong, Yu-Ting Wen, Bin-Bin Feng, Hong-Fang Li, Teng Zhang, Yuan-Biao Huang, Duan-Hui Si and Rong Cao","doi":"10.1039/D4QM00819G","DOIUrl":"https://doi.org/10.1039/D4QM00819G","url":null,"abstract":"<p >The electrochemical CO<small><sub>2</sub></small> reduction reaction (CO<small><sub>2</sub></small>RR) underlies a strategic approach to energy and environmental challenges. Large-sized materials offer industrial scalability due to their simplicity and cost-effectiveness. However, traditional large-sized Cu catalysts preferentially catalyze the hydrogen evolution reaction (HER) over the CO<small><sub>2</sub></small>RR. Hence, the development of large-sized catalysts with enhanced reducibility is imperative for an efficient CO<small><sub>2</sub></small>RR. In this study, a large-sized Cu@Ag catalyst was designed using electrodeposition, which enhanced the CO<small><sub>2</sub></small>RR and suppressed the HER. The faradaic efficiency (FE) for hydrocarbons of the Cu@Ag catalyst was 59.8%, surpassing that of bare Cu nanoparticles by 21.4%. FE<small><sub>H<small><sub>2</sub></small></sub></small> was notably reduced to 31.6%, compared to 63.0% for Ag foil and 55.2% for bare Cu nanoparticles. Theoretical calculations indicated a reconfiguration of Cu 3d orbitals in the Cu@Ag catalyst. The d<small><sub><em>x</em><small><sup>2</sup></small>−<em>y</em><small><sup>2</sup></small></sub></small> orbital, being the highest occupied, modulated the affinity of CO<small><sub>2</sub></small> molecules and favored hydrocarbon formation. Additionally, the charge density at the Cu@Ag boundaries increased, facilitating C–C coupling. In particular, the C<small><sub>2</sub></small>H<small><sub>4</sub></small>/CH<small><sub>4</sub></small> ratio was enhanced by approximately 30-fold compared to using bare Cu nanoparticles. This study demonstrated that the synergistic mechanism of the Cu@Ag catalyst is key to enhancing the CO<small><sub>2</sub></small>RR and inhibiting the competing HER, thus elucidating the molecular mechanisms for the conversion of CO<small><sub>2</sub></small> into valuable chemicals using large-sized Cu-based catalysts.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 271-279"},"PeriodicalIF":6.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aurore Larquey, Houda Bellahsene, Gautier Félix, Mickaël Beaudhuin, Tristan Pelluau, Basile Bouvet, Yannick Guari, Saad Sene and Joulia Larionova
{"title":"New heater@luminescent thermometer nano-objects: Prussian blue core@silica shell loaded with a β-diketonate Tb3+/Eu3+ complex†","authors":"Aurore Larquey, Houda Bellahsene, Gautier Félix, Mickaël Beaudhuin, Tristan Pelluau, Basile Bouvet, Yannick Guari, Saad Sene and Joulia Larionova","doi":"10.1039/D4QM00668B","DOIUrl":"https://doi.org/10.1039/D4QM00668B","url":null,"abstract":"<p >We report on the synthesis and investigation of new multifunctional Prussian blue (PB) nanoparticles coated by a mesoporous silica shell and loaded with a luminescent [(Tb/Eu)<small><sub>9</sub></small>(acac)<small><sub>16</sub></small>(μ<small><sub>3</sub></small>-OH)<small><sub>8</sub></small>(μ<small><sub>4</sub></small>-O)(μ<small><sub>4</sub></small>-OH)]·H<small><sub>2</sub></small>O complex. These multifunctional nano-objects work as efficient photothermal nano-heaters able to provide macroscopic temperature rises remotely triggered by light irradiation at 808 nm (Δ<em>T</em> = 20.4 °C under irradiation for 3 min with a laser power of 1.83 W cm<small><sup>−2</sup></small>). Their specific heat capacity, the primary parameter influencing the heating properties of nanoparticles, was determined by using the photothermal properties and the measured heat capacity of PB nanoparticles, yielding a value of 1.13 ± 0.03 J g<small><sup>−1</sup></small> K<small><sup>−1</sup></small>. This moderate value indicates that once heated, the nanoparticles can retain heat effectively, making them suitable for applications requiring sustained and controlled thermal effects. On the other hand, these multifunctional nanoparticles exhibit the characteristic temperature-dependent luminescence of Tb<small><sup>3+</sup></small> and Eu<small><sup>3+</sup></small> with improved Tb<small><sup>3+</sup></small>-to-Eu<small><sup>3+</sup></small> energy transfer, making them efficient as luminescent ratiometric thermometers. These nanothermometers operate in the 20–80 °C range exhibiting a maximal relative thermal sensitivity of 0.75% °C<small><sup>−1</sup></small> at 20 °C.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 1","pages":" 131-146"},"PeriodicalIF":6.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yue Li, Jingjing Zhang, Yile Lin, Piracha Sanwal, Lulu Zhou, Gao Li and Yongdong Chen
{"title":"Effects of metal doping on the methanol deep oxidation activity of the Pd/CeO2 monolithic catalyst†","authors":"Yue Li, Jingjing Zhang, Yile Lin, Piracha Sanwal, Lulu Zhou, Gao Li and Yongdong Chen","doi":"10.1039/D4QM00756E","DOIUrl":"https://doi.org/10.1039/D4QM00756E","url":null,"abstract":"<p >Methanol fuel can be used as a clean alternative to conventional gasoline. However, vehicles using methanol fuel typically exhibit low exhaust temperatures during the cold start and idle phases, which may result in the emission of unburned methanol vapor. Herein, a series of CeO<small><sub>2</sub></small>-based solid solutions doped with different metal ions (CeM, M = Mg, La, Bi, Zr) are synthesized by a hydrothermal synthesis method, and supported Pd/CeM catalysts with regular interfacial structures are prepared by a special assembly method for the low-temperature deep oxidation of methanol. The results of XRD, N<small><sub>2</sub></small> adsorption/desorption, Raman spectroscopy, XPS and H<small><sub>2</sub></small>-TPR show that the crystal structure, specific surface area, defect concentration, surface oxygen vacancy content, high-valence Pd<small><sup><em>δ</em>+</sup></small> (<em>δ</em> > 2) species content and redox performance of the Pd/CeM catalyst are closely related to the type of doped metal ions. The catalytic performance results show that the Pd/CeLa catalyst exhibits the best low-temperature methanol oxidation activity, with a light-off temperature (<em>T</em><small><sub>50</sub></small>) of 118 °C and full conversion temperature (<em>T</em><small><sub>90</sub></small>) of 155 °C, which is at a high level under the same conditions reported in the literature. This is mainly attributed to its high defect concentration, high oxygen vacancy and more hypervalent Pd<small><sup><em>δ</em>+</sup></small> (<em>δ</em> > 2) species content as well as excellent low-temperature reduction performance. The results of this study demonstrate the promise of the Pd/CeLa catalyst for methanol oxidation and may offer guidelines for designing efficient catalysts for purification of methanol fuel from vehicle exhaust.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 280-287"},"PeriodicalIF":6.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wei Zuo, Zhenhang Xu, Jun Qian, Gongzhen Cheng and Pingping Zhao
{"title":"Reconfiguration and activation induced by characteristic migration of transition metal ions between interfaces of high-entropy oxygen evolution catalysts†","authors":"Wei Zuo, Zhenhang Xu, Jun Qian, Gongzhen Cheng and Pingping Zhao","doi":"10.1039/D4QM00772G","DOIUrl":"https://doi.org/10.1039/D4QM00772G","url":null,"abstract":"<p >The tremendous potential of high-entropy alloys (HEA) in the electrocatalysis of the oxygen evolution reaction (OER) is well known, but many issues pertaining to building more reliable HEA systems to maximize its synergistic advantages and explaining their complex electrochemical interface behavior need to be discussed. Herein, a convenient composite metal–organic framework (MOF) co-pyrolysis method is designed to reconstruct the precursor in a high-temperature inert atmosphere and prepare a core–shell structure nitrogen-containing carbon nanotube-coated six-metal alloy (FeCoNiVCrZn HEA) as an excellent alkaline medium OER catalyst. It can achieve a working current density of 10 mA cm<small><sup>−2</sup></small> at 249 mV overpotential, and the current fluctuation range is less than 3.12% after constant voltage operation for an extended time in 1 M KOH electrolyte. Its electrocatalytic activity and stability surpass those of the same type of alloy catalyst and commercial IrO<small><sub>2</sub></small>/C catalyst. We tracked the trend of the concentration and chemical state of metal ions between two phases during the electrochemical process and found that the interface reconfiguration of the high-entropy alloy is regulated by the characteristic transition metal migration behavior. On this basis, through density functional theory (DFT) calculation, we further explored the alkaline medium surface metal dissolution and surface reconfiguration behavior and verified that the active MOOH (M = Fe, Co and Ni) phase plays a key role in the reaction steps for the adsorption of the oxygen species. This work provides a unique perspective for the study of HEA in OER structure optimization and interface behavior and shows a new prospect for the development of advanced OER electrocatalysts.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 325-338"},"PeriodicalIF":6.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paundra Rizky Pratama, Azzah Dyah Pramata, Yuki Suenari, Jonas Karl Christopher N. Agutaya, Yu Nagata, Takeshi Shinkai, Yusuke Inomata, Mas Irfan Purbawanto Hidayat, Biplab Manna, Yuji Akaishi and Tetsuya Kida
{"title":"Lattice engineering for enhancing the stability of CsPbI3/CsxFA1–xPbI3 quantum dots synthesized via a direct arrangement†","authors":"Paundra Rizky Pratama, Azzah Dyah Pramata, Yuki Suenari, Jonas Karl Christopher N. Agutaya, Yu Nagata, Takeshi Shinkai, Yusuke Inomata, Mas Irfan Purbawanto Hidayat, Biplab Manna, Yuji Akaishi and Tetsuya Kida","doi":"10.1039/D4QM00885E","DOIUrl":"https://doi.org/10.1039/D4QM00885E","url":null,"abstract":"<p >The inherent structural instability of red-emitting cesium lead iodide (CsPbI<small><sub>3</sub></small>) perovskite quantum dots (QDs) poses a significant hurdle for their integration into commercial optoelectronic devices. In this study, we improved the stability of the cubic CsPbI<small><sub>3</sub></small> QDs by coating them with a Cs<small><sub><em>x</em></sub></small>FA<small><sub>1−<em>x</em></sub></small>PbI<small><sub>3</sub></small> (FA = formamidinium, <em>x</em> = 0.25 or 0.75) cluster <em>via</em> a facile direct arrangement synthesis method. The resulting CsPbI<small><sub>3</sub></small>/Cs<small><sub><em>x</em></sub></small>FA<small><sub>1−<em>x</em></sub></small>PbI<small><sub>3</sub></small> exhibited visible luminescence between 600 and 650 nm, a full-width half maximum of 38 nm, and a high photoluminescence quantum yield of 86.66%. Unlike in the case of bare CsPbI<small><sub>3</sub></small>, no discernable photoemission peak shift was observed for CsPbI<small><sub>3</sub></small>/Cs<small><sub>0.25</sub></small>FA<small><sub>0.75</sub></small>PbI<small><sub>3</sub></small> in particular at temperatures of up to 373 K and under UV illumination. Moreover, a more sustained luminescence of up to 25 min in the polar solvent was observed for CsPbI<small><sub>3</sub></small>/Cs<small><sub>0.25</sub></small>FA<small><sub>0.75</sub></small>PbI<small><sub>3</sub></small> compared to CsPbI<small><sub>3</sub></small> in less than 5 min. These resistances to thermal stress and degradation in polar solvents were attributed to the passivation of the CsPbI<small><sub>3</sub></small> particles by the pseudo-orthorhombic Cs<small><sub><em>x</em></sub></small>FA<small><sub>1−<em>x</em></sub></small>PbI<small><sub>3</sub></small> cluster. DFT calculations revealed that the addition of FA substantially changes the morphology of CsPbI<small><sub>3</sub></small>, but FA itself does not contribute significantly to the electronic transitions within the crystal. Therefore, the Cs<small><sub><em>x</em></sub></small>FA<small><sub>1−<em>x</em></sub></small>PbI<small><sub>3</sub></small> cluster on the surface of CsPbI<small><sub>3</sub></small> promoted their structural stability without any significant changes in its desired optical properties. These results offer unique optical characteristics while boosting the structural robustness of CsPbI<small><sub>3</sub></small> QDs by surface modification, which potentially could be used for optoelectronic devices.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 2","pages":" 288-298"},"PeriodicalIF":6.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qianqian Liu, Yanfei Wang, Xiao Liang, Hui Chen and Xiaoxin Zou
{"title":"Multiscale engineering of anode catalyst layers in proton exchange membrane water electrolyzers","authors":"Qianqian Liu, Yanfei Wang, Xiao Liang, Hui Chen and Xiaoxin Zou","doi":"10.1039/D4QM00842A","DOIUrl":"https://doi.org/10.1039/D4QM00842A","url":null,"abstract":"<p >Proton exchange membrane water electrolyzers (PEMWEs) play a key role in promoting the development of the clean hydrogen energy industry and accelerating the achievement of carbon neutrality goals due to their advantages of high efficiency, low energy consumption, ease of integration and fast response. In PEMWEs, the water oxidation reaction in the anode catalytic layer is the core process, and its catalytic efficiency directly determines the performance and stability of the electrolyzers. Therefore, enhancement of reactant transport, electron/proton transfer, and oxygen release by cross-scale optimisation of the anode catalytic layer is crucial for improving the efficiency of PEMWEs. This article highlights recent advances in optimizing the anode catalytic layer of PEMWEs through multi-scale engineering strategies. We first introduce the basic structure of PEMWEs and the importance of the anode catalyst. Subsequently, we discuss in detail the multiscale optimisation strategy of the anode catalyst layer, including the design of active sites at the atomic scale, the morphology regulation at the nano/micro scale, the catalytic layer optimization at the macroscopic scale and the comprehensive synergistic effect of multiscale engineering. Finally, we conclude and look forward to the existing challenges and future research directions for optimising anode catalyst layers by multiscale engineering.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 1","pages":" 30-44"},"PeriodicalIF":6.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}