Advanced Materials最新文献_第7页

Phagocytosis-Activating Nanocomplex Orchestrates Macrophage-Mediated Cancer Immunotherapy 吞噬激活纳米复合物协调巨噬细胞介导的癌症免疫治疗

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202500982

Hua Huang, Qi-Song Tong, Jing-Yang Zhang, Wei-Min Miao, Hui-Han Yu, Jun Wang, Song Shen, Jin-Zhi Du

{"title":"Phagocytosis-Activating Nanocomplex Orchestrates Macrophage-Mediated Cancer Immunotherapy","authors":"Hua Huang, Qi-Song Tong, Jing-Yang Zhang, Wei-Min Miao, Hui-Han Yu, Jun Wang, Song Shen, Jin-Zhi Du","doi":"10.1002/adma.202500982","DOIUrl":"https://doi.org/10.1002/adma.202500982","url":null,"abstract":"The phagocytosis of macrophages to tumor cells represents an alluring strategy for cancer immunotherapy; however, its effectiveness is largely hindered by the detrimental upregulation of anti-phagocytic signals and insufficient expression of pro-phagocytic signals of tumor cells. Here, a pro-phagocytic polymer-based nanocomplex is designed to promote the macrophage engulfment of tumor cells through concurrent modulation of both the “eat me” and “don't eat me” signals. The nanocomplex MNCCD47i-CALRt is formed by complexing a synthetic PAMAM derivative (G4P–C7A) that is capable of intrinsically inducing the exposure of calreticulin (CALR, a crucial pro-phagocytic protein) and a small inference RNA that can inhibit the expression of CD47 (a primary anti-phagocytic protein). MNCCD47i-CALRt can significantly delay tumor growth and prolong the survival of tumor-bearing mice with negligible hematopoietic toxicity in multiple murine colorectal cancer models. Furthermore, the pro-phagocytic capacity of MNCCD47i-CALRt is validated in the patient-derived tumor organoid model. Collectively, the phagocytosis-promoting nanocomplex provides a simple and potent strategy for boosting macrophage-mediated cancer immunotherapy.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"41 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880255","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}

引用次数: 0

Electric-Field-Driven Reversal of Ferromagnetism in (110)-Oriented, Single Phase, Multiferroic Co-Substituted BiFeO3 Thin Films （110）取向、单相、多铁共取代BiFeO3薄膜中电场驱动的铁磁性反转

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202419580

Takuma Itoh, Kei Shigematsu, Hena Das, Peter Meisenheimer, Kei Maeda, Koomok Lee, Mahir Manna, Surya Prakash Reddy, Sandhya Susarla, Paul Stevenson, Ramamoorthy Ramesh, Masaki Azuma

{"title":"Electric-Field-Driven Reversal of Ferromagnetism in (110)-Oriented, Single Phase, Multiferroic Co-Substituted BiFeO3 Thin Films","authors":"Takuma Itoh, Kei Shigematsu, Hena Das, Peter Meisenheimer, Kei Maeda, Koomok Lee, Mahir Manna, Surya Prakash Reddy, Sandhya Susarla, Paul Stevenson, Ramamoorthy Ramesh, Masaki Azuma","doi":"10.1002/adma.202419580","DOIUrl":"https://doi.org/10.1002/adma.202419580","url":null,"abstract":"While multiferroic materials are attractive systems for the promise of ultra-low-power-consumption computational technologies, electric-field-induced magnetization reversal is a key challenge for realizing devices at scale. Though significant research efforts have been working toward the realization of a material which couples ferroelectricity and ferromagnetism, there are few, even composite, systems which are practical for device scale applications at room temperature. Co-substituted multiferroic BiFe0.9Co0.1O3 is a promising candidate system, due to coupled ferroelectricity and weak ferromagnetism at room temperature. Here, it is theoretically indicated that the ferroic orders in this material are statically coupled, where an in-plane 109° ferroelectric switching event can result in the reversal of this out-of-plane component of magnetization, and the electric field-induced magnetization reversal is experimentally observed. Such an in-plane poling configuration is particularly desirable for device applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"21 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880264","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}

引用次数: 0

Modulating Crystal Growth with Sacrificial Coordination for High-Performance Perovskite Solar Cells via Intense Pulsed Light Annealing 基于牺牲配位的强脉冲光退火调制高性能钙钛矿太阳能电池晶体生长

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202502710

Jiahong Shan, Zhiyong Zhang, Jun Zhou, Weifu Zhang, Haowei Guan, Jiajia Zhang, Yueying Zhang, Chuanxiao Xiao, Mengjin Yang, Ziyi Ge

{"title":"Modulating Crystal Growth with Sacrificial Coordination for High-Performance Perovskite Solar Cells via Intense Pulsed Light Annealing","authors":"Jiahong Shan, Zhiyong Zhang, Jun Zhou, Weifu Zhang, Haowei Guan, Jiajia Zhang, Yueying Zhang, Chuanxiao Xiao, Mengjin Yang, Ziyi Ge","doi":"10.1002/adma.202502710","DOIUrl":"https://doi.org/10.1002/adma.202502710","url":null,"abstract":"Intense pulsed light (IPL) annealing has emerged as a transformative technology for the high-throughput, low-cost fabrication of perovskite films, enabling the rapid conversion of precursor wet films into perovskite films within milliseconds. Despite their potential, the efficiencies of IPL-processed devices have yet to match those achieved through conventional thermal annealing (TA), primarily due to the challenges of uncontrolled crystallization and defect formation during the IPL process. In this study, a solid Lewis base additive, dodecyl methyl sulfoxide (DodecylMSO) is introduced, to modulate perovskite crystal growth and improve film morphology and uniformity under IPL conditions. DodecylMSO acts as a sacrificial additive, with X-ray photoelectron spectroscopy (XPS) confirming the majority of it is removed in the final films. Compared to the control films, DodecylMSO-modified films exhibited significantly reduced defect densities and enhanced carrier extraction and transport properties. Leveraging this approach, p-i-n perovskite solar cells (PSCs) is demonstrated with a champion power conversion efficiency of 23.5% fabricated via IPL. This sacrificial coordination strategy not only addresses key challenges in IPL processing but also opens new avenues for advancing the manufacturability and scalability of high-performance PSCs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"17 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880249","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}

引用次数: 0

Signal Converter-Based Therapy Platform Promoting Aging Bone Healing by Improving Permeability of the Mitochondrial Membrane 基于信号转换器的治疗平台通过提高线粒体膜的通透性促进老化骨愈合

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202500156

Yiyang Huang, Jiannan Mao, Ziang Li, Wenbo Wang, Zhengxia Ni, Feng Cai, Jincheng Tang, Wei Wang, Lichen Zhang, Liang Zhou, Xinzhao Jiang, Jie Wu, Qiangqiang Guo, Min Rui, Ziyan Huang, Haochen Jiang, Lingjun Wang, Kun Xi, Yong Gu, Liang Chen

{"title":"Signal Converter-Based Therapy Platform Promoting Aging Bone Healing by Improving Permeability of the Mitochondrial Membrane","authors":"Yiyang Huang, Jiannan Mao, Ziang Li, Wenbo Wang, Zhengxia Ni, Feng Cai, Jincheng Tang, Wei Wang, Lichen Zhang, Liang Zhou, Xinzhao Jiang, Jie Wu, Qiangqiang Guo, Min Rui, Ziyan Huang, Haochen Jiang, Lingjun Wang, Kun Xi, Yong Gu, Liang Chen","doi":"10.1002/adma.202500156","DOIUrl":"https://doi.org/10.1002/adma.202500156","url":null,"abstract":"The aging microenvironment promotes persistent inflammation and loss of intrinsic regenerative capacity. These are major obstacles to effective bone tissue repair in older adults. This study aims to explore how physical thermal stimulation can effectively delay the bone marrow mesenchymal stem cells (BMSCs) aging process. Based on this, an implantable physical signal-converter platform is designed as a therapeutic system that enables stable heat signals at the bone injury site under ultrasound stimulation (US). It is found that the therapeutic platform controllably reduces the mitochondrial outer membrane permeabilization of aging BMSCs, bidirectionally inhibiting mitochondrial reactive oxygen species and mitochondrial DNA (mtDNA) leakage. The leakage ratio of mtDNA decreases by 22.7%. This effectively mitigates the activation of the cGAS-STING pathway and its downstream NF-κB signaling induced by oxidative stress in aging BMSCs, thereby attenuating the pathological advancement of chronic inflammation. Thus, it effectively restores the metabolism and osteogenic differentiation of aging BMSCs in vitro, which is further confirmed in a rat model. In the GMPG/US group, the bone mineral density increases 2–3 times at 4 weeks in the rats femoral defect model. Therefore, this ultrasound-based signal-conversion platform provides a promising strategy for aging bone defect repair.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"8 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880257","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}

引用次数: 0

Octopus Tentacle-Inspired In-Sensor Adaptive Integral for Edge-Intelligent Touch Intention Recognition 基于章鱼触手的边缘智能触摸意图识别传感器自适应积分

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202420501

Chao Wei, Shifan Yu, Yifan Meng, Yijing Xu, Yu Hu, Zhicheng Cao, Zijian Huang, Lei Liu, Yanhao Luo, Hongyu Chen, Zhong Chen, Zeliang Zhang, Liang Wang, Zhenyu Zhao, Yuanjin Zheng, Qingliang Liao, Xinqin Liao

{"title":"Octopus Tentacle-Inspired In-Sensor Adaptive Integral for Edge-Intelligent Touch Intention Recognition","authors":"Chao Wei, Shifan Yu, Yifan Meng, Yijing Xu, Yu Hu, Zhicheng Cao, Zijian Huang, Lei Liu, Yanhao Luo, Hongyu Chen, Zhong Chen, Zeliang Zhang, Liang Wang, Zhenyu Zhao, Yuanjin Zheng, Qingliang Liao, Xinqin Liao","doi":"10.1002/adma.202420501","DOIUrl":"https://doi.org/10.1002/adma.202420501","url":null,"abstract":"Electronics continue to drive technological innovation and diversified applications. To ensure efficiency and effectiveness across various interactive contexts, the ability to adjust operating functions or parameters according to environmental shifts or user requirements is highly desirable. However, due to the inherent limitations of nonadaptive device structures and materials, the current development of touch electronics faces challenges, e.g., limited hardware resources, poor adaptability, weak deformation stability, and bottlenecks in sensing data processing. Here, a reconfigurable and adaptive intelligent (RAI) touch sensor is proposed, inspired by octopus's tentacle cognitive behavior. It realizes remarkable deformability and highly efficient multitouch interactions. The geometric progression structure of the sensing element equips the RAI touch sensor with a unique integrated-in-sensing mechanism and programmable logic. This greatly compresses sensing data dimensionality at the edge, yielding concise and undistorted interactive signals. By leveraging the advantages of hard-soft bonding and interface modulation of functional materials, the adaptability is achieved with a 200% strain range a 180° twist tolerance, and exceptional deformation stability of >10 000 cycles. The diverse application-specific configurations of the RAI touch sensor, enable a dynamic intention recognition accuracy of over 99%, advancing next-generation Internet of Things and edge computing research and innovation.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"17 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880252","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}

引用次数: 0

Hybrid Formative-Additive Manufacturing 混合成型-增材制造

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202417609

Nathan C. Brown, Jochen Mueller

{"title":"Hybrid Formative-Additive Manufacturing","authors":"Nathan C. Brown, Jochen Mueller","doi":"10.1002/adma.202417609","DOIUrl":"https://doi.org/10.1002/adma.202417609","url":null,"abstract":"Material extrusion additive manufacturing (AM) provides extensive design flexibility and exceptional material versatility, enabling the fabrication of complex, multifunctional objects ranging from embedded electronics to soft robotics and vascularized tissues. The bottom-up creation of these objects typically requires discretization into layers and voxels. However, the voxel size, determined by the nozzle diameter, limits extrusion rate, creating a conflict between resolution and speed. To address these inherent scalability challenges, the study proposes a hybrid formative-additive manufacturing technology that combines the respective strengths of each method—speed and quality with complexity and flexibility. The approach involves 3D-printing complex geometries, multimaterial features, and bounding walls of bulky, lower-resolution volumes, which are rapidly filled via casting or molding. By precisely controlling the materials’ rheological properties—while maintaining similar solidified properties and high interfacial strength—several typical AM flaws, such as bulging and internal voids, are eliminated, achieving exponentially faster production speeds for objects with varying feature sizes.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"24 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880295","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}

引用次数: 0

Supramolecular Conductive Hydrogels With Homogeneous Ionic and Electronic Transport 具有均匀离子和电子输运的超分子导电水凝胶

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202415687

Stephen J.K. O'Neill, Minoru Ashizawa, Alan M. McLean, Ruben Ruiz-Mateos Serrano, Tokihiko Shimura, Masakazu Agetsuma, Motosuke Tsutsumi, Tomomi Nemoto, Christopher D. J. Parmenter, Jade A. McCune, George G. Malliaras, Naoji Matsuhisa, Oren A. Scherman

{"title":"Supramolecular Conductive Hydrogels With Homogeneous Ionic and Electronic Transport","authors":"Stephen J.K. O'Neill, Minoru Ashizawa, Alan M. McLean, Ruben Ruiz-Mateos Serrano, Tokihiko Shimura, Masakazu Agetsuma, Motosuke Tsutsumi, Tomomi Nemoto, Christopher D. J. Parmenter, Jade A. McCune, George G. Malliaras, Naoji Matsuhisa, Oren A. Scherman","doi":"10.1002/adma.202415687","DOIUrl":"https://doi.org/10.1002/adma.202415687","url":null,"abstract":"Mechanically resilient hydrogels with ion-electron mixed transport properties effectively bridge biology with electronics. An ideal bioelectronic interface can be realized through introducing electronically conductive polymers into supramolecular hydrogels. However, inhomogeneous morphologies of conducting polymers, such as poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), have limited mechanical properties and ion-electron interactions. Here, supramolecular conductive hydrogels that possess homogeneous ionic and electronic transport are achieved. The materials demonstrate high toughness (620 kJ m−3), stretchability (>1000%), softness (10.5 kPa), and conductivity (5.8 S cm−1), which surpasses commonly used inhomogeneous PEDOT:PSS-based hydrogels. The homogeneous network leads to higher charge injection capacitance and lower skin impedance compared to commercial electrodes or commonly used inhomogeneous PEDOT:PSS conducting networks. This significant advance arises from the homogeneous incorporation of the hydrophilic self-doped conducting polymer S-PEDOT, which has polymerized within a supramolecular polymer network template mediated by high-binding affinity host-guest crosslinks. Furthermore, the compatibility of S-PEDOT with hydrophilic secondary networks enables the realization of fully dryable and reswellable electronic devices, facilitating reusability and improving their ease of handling. It is anticipated that achieving such material architectures will offer a promising new direction in future synthesis and implementation of conductive hydrogels in the field of bioelectronics.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"74 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885308","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}

引用次数: 0

Highly Coupled Dynamically Modulated Electrocatalysts on Wafer-Scale InGaN/GaN Nanowires on Silicon for Successive Acidic Photoelectrochemical Water Oxidation 硅片级InGaN/GaN纳米线上的高耦合动态调制电催化剂用于连续酸性光电化学水氧化

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202501218

Wengang Gu, Wei Chen, Weiyi Wang, Xin Liu, Zhixiang Gao, Yang Kang, Yuanmin Luo, Yang Li, Wei Hu, Ran Long, Haiding Sun

{"title":"Highly Coupled Dynamically Modulated Electrocatalysts on Wafer-Scale InGaN/GaN Nanowires on Silicon for Successive Acidic Photoelectrochemical Water Oxidation","authors":"Wengang Gu, Wei Chen, Weiyi Wang, Xin Liu, Zhixiang Gao, Yang Kang, Yuanmin Luo, Yang Li, Wei Hu, Ran Long, Haiding Sun","doi":"10.1002/adma.202501218","DOIUrl":"https://doi.org/10.1002/adma.202501218","url":null,"abstract":"Photoelectrochemical water splitting is considered one of the most promising paths for sustainable hydrogen production. However, the sluggish kinetics of the water oxidation reaction and poor stability of the photoanode significantly limit the overall performance of the photoelectrochemical device, particularly under acidic conditions, which poses great challenges for practical applications. Herein, the coupling of unique CoRuOx nanoclusters with dynamic electronic modulation effects to wafer-scale InGaN nanowires is proposed, demonstrating superior photoelectrochemical activity and stability for acidic water oxidation. Compared with InGaN nanowires loaded with typical RuO₂ cocatalysts, CoRuOx/InGaN photoanodes achieve a remarkable improvement in applied bias photon-to-current efficiency from 0.77% to 2.25%, with stable operation for over 500 min under strongly acidic conditions. Such boosted performance is attributed mainly to Co induced dynamic electronic modulation, which enhances oxygen evolution while maintaining the stable operation of CoRuOx/InGaN photoanodes. Initially, the Co sites increased the oxidation state of Ru, enhancing the activity of oxygen evolution. Moreover, during PEC operation, the Co sites stabilized the Ru sites, preventing dissolution of cocatalyst. This unique self-adaptive process significantly enhances the stability and activity of the photoanode, opening an effective avenue to achieve efficient and durable photoanodes for PEC applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"24 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880256","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}

引用次数: 0

Efficient Low-temperature Ammonia Cracking Enabled by Strained Heterostructure Interfaces on Ru-free Catalyst 无钌催化剂上应变异质结构界面实现高效低温氨裂解

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202502034

Pei Xiong, Jiangtong Li, Zhihang Xu, Yashan Lin, Robert David Bennett, Yi Zhang, Wei-Min Tu, Ye Zhu, Yun-Liang Soo, Tai-Sing Wu, Molly Meng-Jung Li

{"title":"Efficient Low-temperature Ammonia Cracking Enabled by Strained Heterostructure Interfaces on Ru-free Catalyst","authors":"Pei Xiong, Jiangtong Li, Zhihang Xu, Yashan Lin, Robert David Bennett, Yi Zhang, Wei-Min Tu, Ye Zhu, Yun-Liang Soo, Tai-Sing Wu, Molly Meng-Jung Li","doi":"10.1002/adma.202502034","DOIUrl":"https://doi.org/10.1002/adma.202502034","url":null,"abstract":"Ammonia (NH3) has emerged as a promising liquid carrier for hydrogen (H2) storage. However, its widespread adoption in H2 technology is impeded by the reliance on costly Ru catalysts for low-temperature NH3 cracking reaction. Here, a strained heterostructure Co@BaAl2O4−x core@shell catalyst is reported that demonstrates catalytic performance at low reaction temperatures comparable to most Ru-based catalysts. This catalyst exhibits exceptional activity across a range of space velocity conditions, maintaining high conversion rates at 475 to 575 °C and achieving an impressive H2 production rate of 64.6 mmol H2 gcat−1 min−1. Synchrotron X-ray absorption spectroscopy, synchrotron X-ray diffraction, and kinetic studies are carried out to elucidate the dynamic changes of the strained heterostructure interface of Co-core and BaAl2O4−x-overlayer under catalytic working conditions. The performance enhancement mechanisms are attributed to the tensile strained Co surface encapsulated in the defective BaAl2O4−x, which enhances NH3 adsorption and facilitates the rate-determining N─H dissociation. Furthermore, the strain release and restoration during NH3 dehydrogenation enable efficient nitrogen desorption, preventing active site poisoning. This work highlights the effectiveness of lattice strain engineering and the development of synergistic strong metal-support interfaces between active metal nanoparticles and oxide support to boost low-temperature NH3 cracking.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"72 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880248","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}

引用次数: 0

Rational Design of a Bilayer Interface for Long-Term Stability of Zn Anodes and MnO2 Cathodes 锌阳极和二氧化锰阴极长期稳定的双层界面的合理设计

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-04-28 DOI: 10.1002/adma.202502366

Kaiping Zhu, Wubin Zhuang, Nanyang Wang, Kai Zhang, Lin Lin, Zhipeng Shao, Chaowei Li, Wenhui Wang, Shizhuo Liu, Peng Yang, Pan Xue, Qichong Zhang, Guo Hong, Yagang Yao

{"title":"Rational Design of a Bilayer Interface for Long-Term Stability of Zn Anodes and MnO2 Cathodes","authors":"Kaiping Zhu, Wubin Zhuang, Nanyang Wang, Kai Zhang, Lin Lin, Zhipeng Shao, Chaowei Li, Wenhui Wang, Shizhuo Liu, Peng Yang, Pan Xue, Qichong Zhang, Guo Hong, Yagang Yao","doi":"10.1002/adma.202502366","DOIUrl":"https://doi.org/10.1002/adma.202502366","url":null,"abstract":"Understanding the composition–characteristics–performance relationship of the electrolyte–electric double layer–electrode–electrolyte interface (EEI) is crucial to construct stable EEIs for high-performance aqueous Zn–MnO2 batteries (AZMBs). However, the interaction mechanisms in AZMBs remain unclear. This work introduces sodium thioctate (ST) into ZnSO4 electrolyte to construct a stable bilayer EEI on both Zn and MnO2 electrodes. First, zincophilic ST regulates the solvation structure of hydrated Zn2+, suppressing corrosion and the hydrogen evolution reaction. Second, the specific adsorption of ST reconstructs the inner Helmholtz plane, facilitating the desolvation of hydrated Zn2+ and homogenizing charge distribution. Finally, ST molecules undergo reversible polymerization at the interface, forming a stable bilayer EEI with a poly(zinc thioctate) outer layer and a ZnS–organic amorphous inner layer, which ensures uniform zinc-ion flux and enhances mechanical stability. Additionally, the dynamic disulfide bonds in ST further enable self-regulation and self-healing of the interface, mitigating damage during cycling. As a result, the ST-enhanced Zn symmetric battery achieves 7800 cycles at 60 mA cm−2, while the AZMB exhibits only 0.0014% capacity decay over 10 000 cycles at 2000 mA g−1. This bilayer EEI engineering strategy offers effective guidance for the rational design of safe and long-life aqueous zinc-ion batteries.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"48 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885309","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}

引用次数: 0