Thermal management is crucial for electronics, especially in the artificial intelligence era of high-power computing. Ultra-low thermal resistance materials are essential for graphics processing units (GPUs)/central processing units (CPUs) but face trade-offs between interfacial resistance, conductivity, mechanical compliance, and durability. Herein, we present a carbon-silicone composite pad with vertically aligned graphite flakes engineered through a two-step strategy: in situ crack formation via ultrasonic treatment followed by precision mechanical polishing. This approach synergistically realizes smooth interfaces and superior graphite deformability, thereby fundamentally addressing the intrinsic trade-off between bulk compressibility and interfacial contact integrity in vertically structured carbon-based thermal interface materials. The optimized composite shows outstanding performance (total thermal resistance = 1.8 mm2K/W at 50 psi, and bulk thermal conductivity exceeds 460 W/mK), high compressibility (45% strain at 50 psi), and fairly good thermal cycling stability. Our findings establish a transformative route toward next-generation thermal interface materials, offering a critical enabler for energy-efficient artificial intelligence hardware development.
{"title":"Extremely low thermal resistance in solid-state thermal pad from in situ graphite cracking for high-power artificial intelligence chip","authors":"Pingjun Luo, Yisimayili Tuersun, Yixin Chen, Zexi Chen, Mengliang Li, Qi Huang, Xuechen Chen, Zuxin Chen, Sheng Chu","doi":"10.1016/j.matt.2025.102547","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102547","url":null,"abstract":"Thermal management is crucial for electronics, especially in the artificial intelligence era of high-power computing. Ultra-low thermal resistance materials are essential for graphics processing units (GPUs)/central processing units (CPUs) but face trade-offs between interfacial resistance, conductivity, mechanical compliance, and durability. Herein, we present a carbon-silicone composite pad with vertically aligned graphite flakes engineered through a two-step strategy: <em>in situ</em> crack formation via ultrasonic treatment followed by precision mechanical polishing. This approach synergistically realizes smooth interfaces and superior graphite deformability, thereby fundamentally addressing the intrinsic trade-off between bulk compressibility and interfacial contact integrity in vertically structured carbon-based thermal interface materials. The optimized composite shows outstanding performance (total thermal resistance = 1.8 mm<sup>2</sup>K/W at 50 psi, and bulk thermal conductivity exceeds 460 W/mK), high compressibility (45% strain at 50 psi), and fairly good thermal cycling stability. Our findings establish a transformative route toward next-generation thermal interface materials, offering a critical enabler for energy-efficient artificial intelligence hardware development.","PeriodicalId":388,"journal":{"name":"Matter","volume":"3 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-15DOI: 10.1016/j.matt.2025.102568
Heejung W. Chung, Pjotrs Žguns, Ju Li, Bilge Yildiz
Discovery of fast proton conductors is important for advancing clean energy technologies. This requires a better understanding of proton migration mechanisms. While structural and chemical traits of ternary metal oxides have been related to proton migration barriers, lattice dynamical effects have not been resolved quantitatively. In this work, we introduce a phonon-based dynamic descriptor, termed “thermal O…O fluctuation,” quantifying the flexibility of donor-acceptor oxide-ion pairs. This enables direct comparison of O-sublattice flexibility across diverse metal oxides. Using regression models, we ranked physical descriptors as predictors of proton mobility, finding that H-bond length and thermal O…O fluctuation were the strongest descriptors. Further analysis revealed a critical O…O spacing of 2.4 Å at the transition state, which is easier to reach by more flexible donor-acceptor pairs, enabling facile proton transfer. Our results demonstrate oxygen sublattice flexibility as a dynamic descriptor and provide guiding principles for enhancing proton mobility in ternary metal oxides.
{"title":"Flexibility of oxygen sublattice and hydrogen bond length predict proton mobility in ternary metal oxides","authors":"Heejung W. Chung, Pjotrs Žguns, Ju Li, Bilge Yildiz","doi":"10.1016/j.matt.2025.102568","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102568","url":null,"abstract":"Discovery of fast proton conductors is important for advancing clean energy technologies. This requires a better understanding of proton migration mechanisms. While structural and chemical traits of ternary metal oxides have been related to proton migration barriers, lattice dynamical effects have not been resolved quantitatively. In this work, we introduce a phonon-based dynamic descriptor, termed “thermal O…O fluctuation,” quantifying the flexibility of donor-acceptor oxide-ion pairs. This enables direct comparison of O-sublattice flexibility across diverse metal oxides. Using regression models, we ranked physical descriptors as predictors of proton mobility, finding that H-bond length and thermal O…O fluctuation were the strongest descriptors. Further analysis revealed a critical O…O spacing of 2.4 Å at the transition state, which is easier to reach by more flexible donor-acceptor pairs, enabling facile proton transfer. Our results demonstrate oxygen sublattice flexibility as a dynamic descriptor and provide guiding principles for enhancing proton mobility in ternary metal oxides.","PeriodicalId":388,"journal":{"name":"Matter","volume":"1 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-09DOI: 10.1016/j.matt.2025.102533
Wanjie Bai, Haotian Li, Huijie Liu, Xianheng Wang, Zhipeng Gu, Ye Yang, Yiwen Li
Black color is the most typical feature of natural and synthetic melanins, which results from the complex packing and chemical disorder of the molecular structure within melanins. From nature and beyond nature, breaking through the black color boundary, expanding the scope of inherent functions, and establishing clearer structure-function relationship of melanin is necessary but hard due to the inherent chaos structure caused by random covalent coupling and supramolecular assembly. Herein, starting from melanin-inspired monomers, we chose and assembled typical organic acceptor molecules (TCNB/TCNQ) with melanin-inspired donor molecules to prepare a series of colorful melanin-inspired pigments through the co-crystallization strategy. The resulting colorful melanin-inspired pigments exhibited multiple colors and different rod-like morphologies compared with many melanin-like polymers. Particularly, green DHI/TCNQ powder presented excellent photothermal efficiency (∼69.8%) for antibacterial application. This work would provide new structure-function tailoring strategy toward the design of melanin-like polymers with highly ordered structures and desirable properties.
{"title":"Colorful melanin-inspired pigments","authors":"Wanjie Bai, Haotian Li, Huijie Liu, Xianheng Wang, Zhipeng Gu, Ye Yang, Yiwen Li","doi":"10.1016/j.matt.2025.102533","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102533","url":null,"abstract":"Black color is the most typical feature of natural and synthetic melanins, which results from the complex packing and chemical disorder of the molecular structure within melanins. From nature and beyond nature, breaking through the black color boundary, expanding the scope of inherent functions, and establishing clearer structure-function relationship of melanin is necessary but hard due to the inherent chaos structure caused by random covalent coupling and supramolecular assembly. Herein, starting from melanin-inspired monomers, we chose and assembled typical organic acceptor molecules (TCNB/TCNQ) with melanin-inspired donor molecules to prepare a series of colorful melanin-inspired pigments through the co-crystallization strategy. The resulting colorful melanin-inspired pigments exhibited multiple colors and different rod-like morphologies compared with many melanin-like polymers. Particularly, green DHI/TCNQ powder presented excellent photothermal efficiency (∼69.8%) for antibacterial application. This work would provide new structure-function tailoring strategy toward the design of melanin-like polymers with highly ordered structures and desirable properties.","PeriodicalId":388,"journal":{"name":"Matter","volume":"13 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-05DOI: 10.1016/j.matt.2025.102531
Víctor de la Asunción-Nadal, Michaela Vojníková, Jack Latella, Chuanrui Chen, An-Yi Chang, Robert Kobrin, Zhenning Zhou, Yihan Che, Zbyněk Heger, Joseph Wang
Microscale biohybrid robots harnessing naturally motile cells offer autonomous long-lasting propulsion and biocompatibility. Yet, precisely directing and controlling their motion remains challenging. Here we demonstrate independent and simultaneous control over different types of biohybrid microrobots and complex motion pattern generation by combining multiple inputs into a single microrobot. We present a novel motion control mechanism for simultaneous phototactic and magnetotactic operation of biohybrid microrobots based on wild-type and blind Chlamydomonas reinhardtii (CR) modified with gelatin-Fe3O4 nanoparticles (gel-SPION). As a result, we developed methods to precisely control the motion of three distinct biohybrids with combined light and magnetic fields. By applying a combination of light and magnetic fields, different biohybrid strains can be sorted in different directions and controlled independently by decoupling the biohybrid magnetotactic and phototactic responses. This work lays the foundation for programmable, selective manipulation of biohybrid microrobots in variable environments, paving the way for advanced control strategies.
{"title":"Photo-magnetically actuated biohybrid microrobots","authors":"Víctor de la Asunción-Nadal, Michaela Vojníková, Jack Latella, Chuanrui Chen, An-Yi Chang, Robert Kobrin, Zhenning Zhou, Yihan Che, Zbyněk Heger, Joseph Wang","doi":"10.1016/j.matt.2025.102531","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102531","url":null,"abstract":"Microscale biohybrid robots harnessing naturally motile cells offer autonomous long-lasting propulsion and biocompatibility. Yet, precisely directing and controlling their motion remains challenging. Here we demonstrate independent and simultaneous control over different types of biohybrid microrobots and complex motion pattern generation by combining multiple inputs into a single microrobot. We present a novel motion control mechanism for simultaneous phototactic and magnetotactic operation of biohybrid microrobots based on wild-type and blind <em>Chlamydomonas reinhardtii</em> (CR) modified with gelatin-Fe<sub>3</sub>O<sub>4</sub> nanoparticles (gel-SPION). As a result, we developed methods to precisely control the motion of three distinct biohybrids with combined light and magnetic fields. By applying a combination of light and magnetic fields, different biohybrid strains can be sorted in different directions and controlled independently by decoupling the biohybrid magnetotactic and phototactic responses. This work lays the foundation for programmable, selective manipulation of biohybrid microrobots in variable environments, paving the way for advanced control strategies.","PeriodicalId":388,"journal":{"name":"Matter","volume":"16 1","pages":"102531"},"PeriodicalIF":18.9,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-03DOI: 10.1016/j.matt.2025.102530
Lei Zhang
This is a perspective on how energetic materials can learn—and teach. What began as a search for high-energy-density structure and high stability has grown into a dialogue among matter, models, and machines. Along this path, the ideas of dual aromaticity, multiscale thinking, and intelligent design converged into a single loop: letting materials guide their own discovery. This piece reflects on that journey and argues for a more reciprocal relationship between science and matter itself.
{"title":"Matter that learns: A closed-AI-loop journey in energetic materials","authors":"Lei Zhang","doi":"10.1016/j.matt.2025.102530","DOIUrl":"10.1016/j.matt.2025.102530","url":null,"abstract":"<div><div>This is a perspective on how energetic materials can learn—and teach. What began as a search for high-energy-density structure and high stability has grown into a dialogue among matter, models, and machines. Along this path, the ideas of dual aromaticity, multiscale thinking, and intelligent design converged into a single loop: letting materials guide their own discovery. This piece reflects on that journey and argues for a more reciprocal relationship between science and matter itself.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102530"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145658944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-03DOI: 10.1016/j.matt.2025.102480
Xinran Li , Cong Liu , Xiangkun Elvis Cao , Yang-Fan Xu , Xiangdong Yao
Hydrogen is considered a clean energy source that could replace fossil fuels in a future carbon-neutral society. However, persistent challenges associated with low hydrogen storage density and significant energy consumption inherent in conventional high-pressure gaseous and cryogenic liquid hydrogen storage remain. To this end, chemical hydrogen storage has emerged as a viable alternative. Furthermore, substantial progress has been achieved by incorporating renewable and potent light energy into hydrogen uptake and release processes, indicating a promising avenue for addressing the global energy crisis and enhancing the efficiency of hydrogen storage processes. This review comprehensively summarizes recent advancements in material design and their applications in various light-driven photothermochemical hydrogen storage systems. The roles and mechanisms of these materials are discussed in detail to underscore the recent progress. Ultimately, this paper aims to highlight existing challenges and propose future directions for research and application in light-advanced hydrogen storage.
{"title":"Powering chemical hydrogen storage with photothermochemical catalysis","authors":"Xinran Li , Cong Liu , Xiangkun Elvis Cao , Yang-Fan Xu , Xiangdong Yao","doi":"10.1016/j.matt.2025.102480","DOIUrl":"10.1016/j.matt.2025.102480","url":null,"abstract":"<div><div>Hydrogen is considered a clean energy source that could replace fossil fuels in a future carbon-neutral society. However, persistent challenges associated with low hydrogen storage density and significant energy consumption inherent in conventional high-pressure gaseous and cryogenic liquid hydrogen storage remain. To this end, chemical hydrogen storage has emerged as a viable alternative. Furthermore, substantial progress has been achieved by incorporating renewable and potent light energy into hydrogen uptake and release processes, indicating a promising avenue for addressing the global energy crisis and enhancing the efficiency of hydrogen storage processes. This review comprehensively summarizes recent advancements in material design and their applications in various light-driven photothermochemical hydrogen storage systems. The roles and mechanisms of these materials are discussed in detail to underscore the recent progress. Ultimately, this paper aims to highlight existing challenges and propose future directions for research and application in light-advanced hydrogen storage.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102480"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145659040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-03DOI: 10.1016/j.matt.2025.102380
Kehao Tao , Jiacong Li , Wei He , An Chen , Yanqiang Han , Feiming Huang , Fuqiang Huang , Jinjin Li
Crystal graph convolutional neural networks (CGCNNs) pioneered data-efficient property prediction by representing crystals as graphs. However, aggregating messages only between nearest-neighbor atoms makes their receptive field size limited, preventing it from capturing the long-range atomic correlations that govern ion transport in disordered lattices. We introduce CGformer, a transformer-enhanced crystal graph network whose global attention spans all atom-bond interactions, enabling accurate property prediction while excelling in complex lattices. We deployed CGformer on high-entropy Na-ion solid-state electrolytes (HE-NSEs), achieving a 25% reduction in mean absolute error compared to that with CGCNNs. We coupled CGformer with unsupervised clustering to scan 148,995 Na super ionic conductor-type (NASICON-type) dopants and pinpoint 18 compositions. Six top-ranked HE-NSEs were synthesized and verified, revealing room temperature conductivities up to 0.256 mS cm−1 and activation energies as low as 0.235 eV, surpassing the undoped analog. CGformer provides a transferable framework that can be extended to other advanced materials, including lithium electrode materials, multivalent-ion conductors, and thermoelectric materials.
晶体图卷积神经网络（CGCNNs）通过将晶体表示为图形，开创了数据高效的属性预测。然而，仅在最近邻的原子之间聚集信息会限制它们的接受场大小，从而阻止它捕获控制无序晶格中离子传输的远程原子相关性。我们介绍了CGformer，这是一种变压器增强的晶体图网络，其全局关注涵盖所有原子键相互作用，在复杂晶格方面表现出色的同时，能够准确预测属性。我们将CGformer部署在高熵na离子固态电解质（HE-NSEs）上，与cgcnn相比，平均绝对误差降低了25%。我们将CGformer与无监督聚类相结合，扫描了148,995种Na超离子导体型（nasicon型）掺杂剂，并确定了18种成分。合成并验证了6个顶级he - nse，室温电导率高达0.256 mS cm−1，活化能低至0.235 eV，超过了未掺杂的模拟物。CGformer提供了一个可转移的框架，可以扩展到其他先进材料，包括锂电极材料，多价离子导体和热电材料。
{"title":"CGformer: Transformer-enhanced crystal graph network with global attention for material property prediction","authors":"Kehao Tao , Jiacong Li , Wei He , An Chen , Yanqiang Han , Feiming Huang , Fuqiang Huang , Jinjin Li","doi":"10.1016/j.matt.2025.102380","DOIUrl":"10.1016/j.matt.2025.102380","url":null,"abstract":"<div><div>Crystal graph convolutional neural networks (CGCNNs) pioneered data-efficient property prediction by representing crystals as graphs. However, aggregating messages only between nearest-neighbor atoms makes their receptive field size limited, preventing it from capturing the long-range atomic correlations that govern ion transport in disordered lattices. We introduce CGformer, a transformer-enhanced crystal graph network whose global attention spans all atom-bond interactions, enabling accurate property prediction while excelling in complex lattices. We deployed CGformer on high-entropy Na-ion solid-state electrolytes (HE-NSEs), achieving a 25% reduction in mean absolute error compared to that with CGCNNs. We coupled CGformer with unsupervised clustering to scan 148,995 Na super ionic conductor-type (NASICON-type) dopants and pinpoint 18 compositions. Six top-ranked HE-NSEs were synthesized and verified, revealing room temperature conductivities up to 0.256 mS cm<sup>−1</sup> and activation energies as low as 0.235 eV, surpassing the undoped analog. CGformer provides a transferable framework that can be extended to other advanced materials, including lithium electrode materials, multivalent-ion conductors, and thermoelectric materials.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102380"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145659131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-03DOI: 10.1016/j.matt.2025.102404
Oliver Fischer , Alexander J. Bett , Yan Zhu , Christoph Messmer , Anh Dinh Bui , Patrick Schygulla , Andreas Fell , Oussama Er-Raji , Bhushan P. Kore , Florian Schindler , Daniel Macdonald , Ziv Hameiri , Stefan W. Glunz , Martin C. Schubert
Monolithic perovskite silicon tandem solar cells reach efficiencies beyond the theoretical efficiency limit of silicon single-junction solar cells. However, the metastability of perovskite materials and the increasing number of functional layers with increasing number of junctions undermines their stability. This poses a significant challenge for industrialization. To enable fast progress in performance and stability, advanced characterization methods tailored for metastable perovskite-based tandem solar cells are essential. This work discusses the Suns open-circuit voltage (Suns-VOC) and intensity-dependent photoluminescence (Suns-PL) imaging methods, which are specifically adapted to perovskite silicon tandem solar cells. Spatially resolved implied open-circuit voltage and implied fill factor images facilitate the localization of losses in large-area solar cells, supporting root-cause analysis of electrical limitations. Furthermore, subcell-resolved Suns-VOC measurements of the tandem solar cells allow charge carrier transport losses to be quantified. Combining both methods allows selectivity losses to be identified. Challenges of the methods are thoroughly analyzed, ensuring reliable measurements with the appropriate measurement routine.
{"title":"Revealing charge carrier transport and selectivity losses in perovskite silicon tandem solar cells","authors":"Oliver Fischer , Alexander J. Bett , Yan Zhu , Christoph Messmer , Anh Dinh Bui , Patrick Schygulla , Andreas Fell , Oussama Er-Raji , Bhushan P. Kore , Florian Schindler , Daniel Macdonald , Ziv Hameiri , Stefan W. Glunz , Martin C. Schubert","doi":"10.1016/j.matt.2025.102404","DOIUrl":"10.1016/j.matt.2025.102404","url":null,"abstract":"<div><div>Monolithic perovskite silicon tandem solar cells reach efficiencies beyond the theoretical efficiency limit of silicon single-junction solar cells. However, the metastability of perovskite materials and the increasing number of functional layers with increasing number of junctions undermines their stability. This poses a significant challenge for industrialization. To enable fast progress in performance and stability, advanced characterization methods tailored for metastable perovskite-based tandem solar cells are essential. This work discusses the <em>Suns</em> open-circuit voltage (<em>Suns</em>-<em>V</em><sub>OC</sub>) and intensity-dependent photoluminescence (<em>Suns</em>-PL) imaging methods, which are specifically adapted to perovskite silicon tandem solar cells. Spatially resolved implied open-circuit voltage and implied fill factor images facilitate the localization of losses in large-area solar cells, supporting root-cause analysis of electrical limitations. Furthermore, subcell-resolved <em>Suns</em>-<em>V</em><sub>OC</sub> measurements of the tandem solar cells allow charge carrier transport losses to be quantified. Combining both methods allows selectivity losses to be identified. Challenges of the methods are thoroughly analyzed, ensuring reliable measurements with the appropriate measurement routine.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102404"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Given the trade-off between activity and selectivity, typical pure CoSe2 catalyst that excels in the initial proton-coupled electron transfer, however, usually underperforms in the subsequent reaction process, leading to low performance for acidic 2e− oxygen reduction reaction (ORR) to H2O2. Here, we report a class of Zn–Co pair active sites on the defected CoSe2-x. The Zn–Co pair active site can well modulate electronic structure for enhancing the adsorption and activation of ∗O2 to achieve high-selectivity electrosynthesis of H2O2. The surrounding Co site has the optimal Gibbs free energy for ∗OOH because of the d-p orbital hybridization between the near-end O (∗OOH) and Co near the Fermi level. The Zn1-Co/CoSe2-x catalyst achieves high selectivity of 95% under 0 V against a reversible hydrogen electrode (RHE) and the maximum productivity of 2.26 mol gcat.−1 h−1 at 250 mA cm−2, which is among the best non-noble metal-based compound catalysts in an acidic medium.
考虑到活性和选择性之间的权衡，典型的纯CoSe2催化剂在初始质子耦合电子转移中表现优异，但在随后的反应过程中通常表现不佳，导致酸性2e -氧还原反应（ORR）对H2O2的性能较低。在这里，我们报道了一类Zn-Co对活性位点在缺陷CoSe2-x上。Zn-Co对活性位点可以很好地调节电子结构，增强对* O2的吸附和活化，实现高选择性电合成H2O2。由于近端O（∗OOH）和Co在费米能级附近发生了d-p轨道杂化，因此周围的Co位具有最佳的吉布斯自由能。Zn1-Co/CoSe2-x催化剂在0 V条件下对可逆氢电极（RHE）具有95%的选择性，最大产率为2.26 mol gcat。在250 mA cm−2条件下- 1 h−1，是酸性介质中性能最好的非贵金属基化合物催化剂之一。
{"title":"Defect-induced Zn–Co pair active site for high-efficiency electrosynthesis of H2O2","authors":"Yingnan Wang , Jinting Wu , Qian Zhang , Yingjun Tan , Jian Gao , Xiao-Dong Zhu , Yong-Chao Zhang , Shaojun Guo","doi":"10.1016/j.matt.2025.102479","DOIUrl":"10.1016/j.matt.2025.102479","url":null,"abstract":"<div><div>Given the trade-off between activity and selectivity, typical pure CoSe<sub>2</sub> catalyst that excels in the initial proton-coupled electron transfer, however, usually underperforms in the subsequent reaction process, leading to low performance for acidic 2e<sup>−</sup> oxygen reduction reaction (ORR) to H<sub>2</sub>O<sub>2</sub>. Here, we report a class of Zn–Co pair active sites on the defected CoSe<sub>2-<em>x</em></sub>. The Zn–Co pair active site can well modulate electronic structure for enhancing the adsorption and activation of ∗O<sub>2</sub> to achieve high-selectivity electrosynthesis of H<sub>2</sub>O<sub>2</sub>. The surrounding Co site has the optimal Gibbs free energy for ∗OOH because of the d-p orbital hybridization between the near-end O (∗OOH) and Co near the Fermi level. The Zn<sub>1</sub>-Co/CoSe<sub>2-<em>x</em></sub> catalyst achieves high selectivity of 95% under 0 V against a reversible hydrogen electrode (RHE) and the maximum productivity of 2.26 mol g<sub>cat.</sub><sup>−1</sup> h<sup>−1</sup> at 250 mA cm<sup>−2</sup>, which is among the best non-noble metal-based compound catalysts in an acidic medium.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102479"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-03DOI: 10.1016/j.matt.2025.102515
Feifei Lin , Heming Xu , Weiwei Zhao , Shujuan Liu , Qiang Zhao
Three-dimensional conformal electronics have garnered significant interest in biomedical devices, the Internet of Things, and aerospace applications. However, wrapping thin-film electronic devices onto three-dimensional surfaces can lead to residual stress and device failure. In this preview, we highlight a droplet-printing strategy that leverages lubricating interfaces for damage-free wrapping and controls the behavior of the three-phase contact line to achieve precise printing.
{"title":"Dynamic lubricating interfaces for three-dimensional conformal wrapping of thin-film electronic devices","authors":"Feifei Lin , Heming Xu , Weiwei Zhao , Shujuan Liu , Qiang Zhao","doi":"10.1016/j.matt.2025.102515","DOIUrl":"10.1016/j.matt.2025.102515","url":null,"abstract":"<div><div>Three-dimensional conformal electronics have garnered significant interest in biomedical devices, the Internet of Things, and aerospace applications. However, wrapping thin-film electronic devices onto three-dimensional surfaces can lead to residual stress and device failure. In this preview, we highlight a droplet-printing strategy that leverages lubricating interfaces for damage-free wrapping and controls the behavior of the three-phase contact line to achieve precise printing.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"8 12","pages":"Article 102515"},"PeriodicalIF":17.5,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145658951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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