Joule最新文献_第5页

Catalytic strategies for hydrogen release from carriers 载体氢释放的催化策略

IF 39.8 1区材料科学

Joule Pub Date : 2026-09-03 DOI: 10.1016/j.joule.2026.102650

Shuai Yue,Guanshu Zhao,Zhiyong Zhao,Mengxue Yang,Fei Li,Tao Zhang,Chengliang Mao,Shufang Ji,Wenqiang Qu,Mingzheng Xie,Pengfei Wang,Sihui Zhan,Geoffrey Ozin

{"title":"Catalytic strategies for hydrogen release from carriers","authors":"Shuai Yue,Guanshu Zhao,Zhiyong Zhao,Mengxue Yang,Fei Li,Tao Zhang,Chengliang Mao,Shufang Ji,Wenqiang Qu,Mingzheng Xie,Pengfei Wang,Sihui Zhan,Geoffrey Ozin","doi":"10.1016/j.joule.2026.102650","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102650","url":null,"abstract":"Hydrogen is poised to underpin the global energy transition, yet today’s production, storage, and distribution remain constrained by carbon-intensive processes and costly infrastructure. Chemical hydrogen carriers, including ammonia, methane, methanol, and liquid organic hydrogen carriers (LOHCs), address these barriers by enabling high-density hydrogen storage, safer handling, more practical transport, and on-demand hydrogen release. This review critically assesses recent advances in catalytic hydrogen release from carriers across thermally driven, electrically driven, and light-driven platforms. Rather than cataloguing isolated catalyst examples, we organize the discussion around how each energy input creates distinct requirements for bond activation, intermediate stabilization, poisoning suppression, and product desorption. We synthesize mechanistic insights into carrier-specific elementary steps, working active-site motifs, dynamic reconstruction, and energy-delivery pathways, and evaluate how these insights guide catalyst design, reactor engineering, and system integration. Particular emphasis is placed on connecting design strategies to the carrier reactions they enable, including nitrogen recombination in ammonia decomposition, CO suppression in alcohol reforming, ensemble-size control in LOHC dehydrogenation, and bias-assisted water or carrier activation in electroreforming. Looking forward, advances in materials integration, hybrid catalytic architectures, operando characterization, and AI-assisted process control are expected to accelerate the development of selective, durable, and energy-efficient carrier-to-hydrogen technologies.","PeriodicalId":343,"journal":{"name":"Joule","volume":"10 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877372","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

Achieving 27.35% efficiency in perovskite-organic tandem solar cells by improving near-infrared absorption with a low-band-gap acceptor 利用低带隙受体提高近红外吸收，实现了27.35%的钙钛矿-有机串联太阳能电池效率

IF 39.8 1区材料科学

Joule Pub Date : 2026-09-03 DOI: 10.1016/j.joule.2026.102670

Sheng Zhuo,Wenxiong Shen,Wenwu Zhou,Yi Li,Fangcong Zhang,Shuya Tai,Xiaoying Xiong,Shunhong Dong,Huiting Fu,Yunlong Ma,Qingdong Zheng

{"title":"Achieving 27.35% efficiency in perovskite-organic tandem solar cells by improving near-infrared absorption with a low-band-gap acceptor","authors":"Sheng Zhuo,Wenxiong Shen,Wenwu Zhou,Yi Li,Fangcong Zhang,Shuya Tai,Xiaoying Xiong,Shunhong Dong,Huiting Fu,Yunlong Ma,Qingdong Zheng","doi":"10.1016/j.joule.2026.102670","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102670","url":null,"abstract":"The primary limitation on the efficiency of perovskite-organic tandem solar cells (TSCs) is that the low-band-gap (LBG) organic subcells generate a lower photocurrent density than the wide-band-gap (WBG) perovskite subcells. This limitation arises from significant overlap in their external quantum efficiency (EQE) spectra near the band-gap edge of the perovskite films. Consequently, it is crucial to develop efficient near-infrared (NIR) acceptors. In this study, we develop an LBG acceptor (Zh-F) that exhibits improved NIR light absorption with a photoresponse extending beyond 1,000 nm when blended with the donor material PM6. Notably, incorporating Zh-F as a third-component acceptor into the PM6:BTP-eC9 system results in ternary organic solar cells (OSCs) with increased photocurrent density in the NIR region attributed to improved EQEs outside the overlapping wavelength range. As a result, by integrating this ternary LBG organic subcell with a 1.82 eV WBG perovskite subcell, the perovskite-organic TSCs achieve an efficiency of 27.35%.","PeriodicalId":343,"journal":{"name":"Joule","volume":"43 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877371","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

Engineering battery architectures for multifunctionality and high performance 多功能和高性能的工程电池架构

IF 39.8 1区材料科学

Joule Pub Date : 2026-09-02 DOI: 10.1016/j.joule.2026.102642

Man Chen,Xiaolin Guo,Yanyu Chen,Karim Zaghib,Jagjit Nanda,Hui Wang

{"title":"Engineering battery architectures for multifunctionality and high performance","authors":"Man Chen,Xiaolin Guo,Yanyu Chen,Karim Zaghib,Jagjit Nanda,Hui Wang","doi":"10.1016/j.joule.2026.102642","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102642","url":null,"abstract":"Next-generation batteries demand architectural innovations that overcome the design limits of electrochemistry alone in conventional lithium-ion batteries (LIBs). This review summarizes architectural design strategies for LIBs and emerging battery systems, classifying them into 1D fiber-based, 2D planar, and 3D architectures. 1D designs, such as coaxial fibers, twisted assemblies, and winding configurations, offer flexibility and mechanical resilience for wearable and microscale batteries. 2D architectures, including interdigitated, pillar-based, and mesh frameworks, are reviewed alongside deformable (serpentine and origami/kirigami) and nature-inspired (e.g., accordion-like) geometries that enhance stretchability and flexibility while preserving electrochemical performance. 3D structural batteries, focused on volumetric design and energy densification, are examined for their potential to combine mechanical resilience with electrochemical functionality. Each architectural class is assessed for its design principles, performance trade-offs, and fabrication feasibility. By correlating architectural designs with advancements in additive manufacturing, this review outlines pathways to address electro-chemo-mechanical coupling challenges and guide the development of next-generation architected batteries.","PeriodicalId":343,"journal":{"name":"Joule","volume":"11 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877379","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

Thermal effects in perovskite solar cells 钙钛矿太阳能电池的热效应

IF 39.8 1区材料科学

Joule Pub Date : 2026-09-02 DOI: 10.1016/j.joule.2026.102643

Mingzhe Zhu,Sirui Han,Zhongmin Zhou

{"title":"Thermal effects in perovskite solar cells","authors":"Mingzhe Zhu,Sirui Han,Zhongmin Zhou","doi":"10.1016/j.joule.2026.102643","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102643","url":null,"abstract":"Heat accumulation remains a major threat to efficiency and operational stability as metal-halide perovskite photovoltaics are nearing commercial deployment. This perspective analyzes heat generation, consequences, and mitigation in representative 3D perovskite photovoltaics through a “source-implication-intervention” framework. We first examine waste heat from bias- and architecture-dependent optical and electrical losses, emphasizing reverse-bias hot spots and the intrinsically low thermal conductivity of soft, anharmonic lattices. We then discuss temperature-induced performance losses arising from recombination and diode characteristics, together with coupled degradation involving ion migration, interfacial reactions, electrode diffusion, and additive redistribution in charge-transport layers. Finally, thermal-management strategies are assessed, including thermally conductive additives, heat-radiation structures, interface engineering, functional encapsulation with conductive fillers or phase-change materials, and radiative-cooling covers that enhance mid-infrared emission with minimal optical loss. System-aware opportunities are further identified for tandem, flexible, and building-integrated perovskite photovoltaics.","PeriodicalId":343,"journal":{"name":"Joule","volume":"13 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877370","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

Insertion-dominated anion redox in high-capacity amorphous sulfide cathodes for solid-state batteries 固态电池用高容量非晶硫化物阴极中插入主导的阴离子氧化还原

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-31 DOI: 10.1016/j.joule.2026.102649

Chengyu Liu,Shengan Wu,Yanjiao Ma,Chong Han,Ke Wang,Zhenqi Song,Aojie Wu,Chiyu Zhang,Aina Zhang,Stefano Passerini,Yuan Ma,Yuping Wu

{"title":"Insertion-dominated anion redox in high-capacity amorphous sulfide cathodes for solid-state batteries","authors":"Chengyu Liu,Shengan Wu,Yanjiao Ma,Chong Han,Ke Wang,Zhenqi Song,Aojie Wu,Chiyu Zhang,Aina Zhang,Stefano Passerini,Yuan Ma,Yuping Wu","doi":"10.1016/j.joule.2026.102649","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102649","url":null,"abstract":"Sulfide-based all-solid-state batteries (ASSBs) offer high-energy and safe energy storage, yet their performance remains limited by the structural instability of conventional crystalline cathodes and poor interfacial compatibility with sulfide solid electrolytes (SEs). Herein, we propose a synergistic cathode design integrating interfacial quasi-homogenization, structural amorphization, and anion-enrichment regulation, using titanium sulfides as a proof-of-concept system. This strategy enables insertion-dominated cation-anion multi-electron redox while promoting a chemically compatible interface and improved deformation accommodation, thereby maintaining interfacial contact during chemo-mechanical evolution and suppressing parasitic reactions. Without surface coatings or multilayer SE architectures, the selected TiS3-based composite cathode delivers an ultrahigh capacity above 550 mAh g−1, a specific energy exceeding 1,000 Wh kg−1, and retains 390 mAh g−1 over 2,800 cycles at 2.0 A g−1 with ∼90% capacity retention, surpassing many reported layered oxide-based cathodes. This work bridges anion chemistry, structural disorder, and interfacial stability, offering a design principle for high-performance sulfide ASSBs.","PeriodicalId":343,"journal":{"name":"Joule","volume":"15 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877369","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

Impact of silicon substrate topography on sequentially evaporated perovskite film growth 硅衬底形貌对顺序蒸发钙钛矿薄膜生长的影响

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-26 DOI: 10.1016/j.joule.2026.102646

Mohamed A.A. Mahmoud,Tobias Schulz,Oliver Fischer,Michael Günthel,Christoph Messmer,Markus Knäbbeler-Buß,Adrian Callies,Salar H. Sedani,Oussama Er-Raji,Adi Prasetio,Salma Al Khuwaitem,Stefaan De Wolf,Yashika Gupta,Jann B. Landgraf,Ilker Yildiz,Martin Bivour,Bhushan P. Kore,Martin C. Schubert,Martin Hermle,Stefan W. Glunz,Paul Pistor,Juliane Borchert

{"title":"Impact of silicon substrate topography on sequentially evaporated perovskite film growth","authors":"Mohamed A.A. Mahmoud,Tobias Schulz,Oliver Fischer,Michael Günthel,Christoph Messmer,Markus Knäbbeler-Buß,Adrian Callies,Salar H. Sedani,Oussama Er-Raji,Adi Prasetio,Salma Al Khuwaitem,Stefaan De Wolf,Yashika Gupta,Jann B. Landgraf,Ilker Yildiz,Martin Bivour,Bhushan P. Kore,Martin C. Schubert,Martin Hermle,Stefan W. Glunz,Paul Pistor,Juliane Borchert","doi":"10.1016/j.joule.2026.102646","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102646","url":null,"abstract":"Thermal evaporation offers a scalable and solvent-free pathway for transitioning perovskite from laboratory prototypes to industrial production, yet it remains significantly underexplored. In this work, we present the first fully solvent-free top cell in a 2-terminal perovskite-silicon tandem solar cell. We systematically explore the structural and morphological evolution of sequentially evaporated perovskite films and the impact of silicon substrate topography on the perovskite film formation. Using in situ X-ray diffraction (XRD), we observed an enhanced conversion of lead halides to perovskite on micro-textured substrates compared with planar substrates. Correspondingly, morphological characterizations revealed a compact layer of lead halides on planar substrates compared with a porous one on textured substrates. Alongside this, an initial layer-by-layer deposition of lead halides is observed, followed by interlayer mixing after adding formamidinium iodide (FAI). These insights advance the understanding of sequential thermal evaporation and enable fully solvent-free perovskite-silicon tandem solar cells with a stabilized power conversion efficiency of 27.0 % .","PeriodicalId":343,"journal":{"name":"Joule","volume":"159 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148821575","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

CsCl seed layer homogenizes co-evaporated perovskite growth for high-efficiency, fully textured perovskite-silicon tandem solar cells CsCl种子层均匀化钙钛矿共蒸发生长，用于高效、全结构的钙钛矿-硅串联太阳能电池

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-26 DOI: 10.1016/j.joule.2026.102645

Viktor Škorjanc,Stefanie Severin,Alexander Veber,Mauricio J. Prieto,Liviu C. Tănase,Aleksandra Miaskiewicz,Sebastian Weitz,Jing-Wen Hsueh,Mohamad-Assaad Mawass,Lucas de Souza Caldas,Suresh Maniyarasu,Philippe Holzhey,Erik Wutke,Stepan Demchyshyn,Matthew R. Leyden,Angelika Harter,Roberto Félix,Jona Kurpiers,Philipp Wagner,Bernd Stannovski,Ljiljana Puskar,Roland Mainz,Daniel Abou-Ras,Thomas Schmidt,Lars Korte,Marcel Roß,Steve Albrecht

{"title":"CsCl seed layer homogenizes co-evaporated perovskite growth for high-efficiency, fully textured perovskite-silicon tandem solar cells","authors":"Viktor Škorjanc,Stefanie Severin,Alexander Veber,Mauricio J. Prieto,Liviu C. Tănase,Aleksandra Miaskiewicz,Sebastian Weitz,Jing-Wen Hsueh,Mohamad-Assaad Mawass,Lucas de Souza Caldas,Suresh Maniyarasu,Philippe Holzhey,Erik Wutke,Stepan Demchyshyn,Matthew R. Leyden,Angelika Harter,Roberto Félix,Jona Kurpiers,Philipp Wagner,Bernd Stannovski,Ljiljana Puskar,Roland Mainz,Daniel Abou-Ras,Thomas Schmidt,Lars Korte,Marcel Roß,Steve Albrecht","doi":"10.1016/j.joule.2026.102645","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102645","url":null,"abstract":"Rapid efficiency improvement made monolithic perovskite-silicon tandem solar cells viable for industrial application, with co-evaporation emerging as a scalable deposition technique capable of conformally coating textured silicon bottom cells. Solution-processed [2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl]phosphonic acid (MeO-2PACz) is widely used as a hole-transporting material for co-evaporated perovskites. However, we show that its uneven coverage of textured silicon surfaces affects perovskite growth, resulting in residual PbI2 at the buried interface. We demonstrate that a CsCl seed layer promotes organic precursor incorporation across the MeO-2PACz/perovskite interface, including regions with thin MeO-2PACz coverage, thereby suppressing interfacial PbI2 formation and increasing the apparent grain size. The improved interfacial and bulk perovskite film quality enabled perovskite-silicon tandem solar cells with a power conversion efficiency of 30.3% (29.7% certified). These findings highlight the importance of a seed layer for robust growth of co-evaporated perovskites and represent an important step toward the industrialization of perovskite-silicon tandem solar cells.","PeriodicalId":343,"journal":{"name":"Joule","volume":"16 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148821597","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

Steric-gated dual-site chelation enables 27.3% efficient perovskite solar cells and ultra-stable 22% bifacial modules 立体门控双位点螯合使27.3%的高效钙钛矿太阳能电池和超稳定的22%双面组件

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-25 DOI: 10.1016/j.joule.2026.102644

Chenfeng Zhang,Zuolin Zhang,Jike Ding,Jialin Liu,Qingping Tang,Guoqing Li,Zedong Lin,Mengjia Li,Hao Liu,Thierry Pauporté,Xiaosong Chen,Yimu Chen,Yuanzhi Jiang,Cong Chen

{"title":"Steric-gated dual-site chelation enables 27.3% efficient perovskite solar cells and ultra-stable 22% bifacial modules","authors":"Chenfeng Zhang,Zuolin Zhang,Jike Ding,Jialin Liu,Qingping Tang,Guoqing Li,Zedong Lin,Mengjia Li,Hao Liu,Thierry Pauporté,Xiaosong Chen,Yimu Chen,Yuanzhi Jiang,Cong Chen","doi":"10.1016/j.joule.2026.102644","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102644","url":null,"abstract":"Defect passivation in high-efficiency perovskite solar cells increasingly demands molecular strategies that reconcile strong coordination with interfacial robustness under operational stress. Here, we introduce a steric-gated dual-site chelation concept enabled by 2,2′-(adamantane-1,3-diyl)diacetic acid (ADA-DA), in which bidentate carboxymethyl coordination is synergistically coupled with a rigid three-dimensional steric scaffold. This design simultaneously stabilizes undercoordinated Pb defect motifs and regulates local interfacial packing during rapid vacuum-flash crystallization, suppressing both non-radiative recombination and defect-mediated instability. As a result, inverted perovskite solar cells achieve a certified stabilized efficiency of 27.10%, with a peak value of 27.39%, alongside markedly improved device-to-device uniformity. Importantly, the same molecular strategy translates to large-area bifacial modules exceeding 22% on both sides, enabling stable power output with 99.6% retention over 5,000 h of continuous illumination. This work establishes steric-gated dual-site chelation as a generalizable molecular design principle for simultaneously advancing efficiency, reproducibility, and operational durability in scalable perovskite photovoltaics.","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148821569","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

Electrochemical conversion of (bi)carbonate-based CO2 capture solutions to ethylene on porous copper-based nanowire electrodes 在多孔铜基纳米线电极上碳酸盐基CO2捕集液转化为乙烯的电化学研究

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-25 DOI: 10.1016/j.joule.2026.102640

Ashkan Irannezhad,Reza Eslami,Amirhossein Rakhsha,Sam Fahrngruber,Navid Noor,Mahtab Masouminia,Nima Shakourifar,Shayan Angizi,Zahra Teimouri,Amirhossein Foroozan,Christine M. Gabardo,Colin P. O’Brien,Michael R. Pepe,Raphael Mensah,Rem Jalab,Benzhong Zhao,Drew Higgins

{"title":"Electrochemical conversion of (bi)carbonate-based CO2 capture solutions to ethylene on porous copper-based nanowire electrodes","authors":"Ashkan Irannezhad,Reza Eslami,Amirhossein Rakhsha,Sam Fahrngruber,Navid Noor,Mahtab Masouminia,Nima Shakourifar,Shayan Angizi,Zahra Teimouri,Amirhossein Foroozan,Christine M. Gabardo,Colin P. O’Brien,Michael R. Pepe,Raphael Mensah,Rem Jalab,Benzhong Zhao,Drew Higgins","doi":"10.1016/j.joule.2026.102640","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102640","url":null,"abstract":"Rising atmospheric CO2 concentrations threaten global climate stability. Alkali hydroxide scrubbing captures CO2 as carbonate/bicarbonate-rich solutions. (Bi)carbonate-fed electrolyzers directly convert the capture solution into valuable chemicals. This research systematically explores nanostructured copper-based porous electrodes to improve the electrocatalytic conversion of (bi)carbonate to ethylene. We examine polycrystalline copper nanowires grown on copper substrates, with nanowire size, density, and distribution tuned via varied electrochemical oxidation protocols. The best-performing electrodes demonstrated Faradaic efficiencies toward ethylene of ∼37% at a current density of 150 mA cm−2 and a cell voltage of 3.3 V, stable for at least 100 h (i.e., corresponding to ∼13% energy efficiency, nearly double comparable systems). To elucidate the mechanisms behind this performance boost, we employed operando high-speed microscopy and mass transport modeling, which revealed (1) a localized increase in pH within the nanowire array and (2) the promotion of bubble growth/detachment, increasing convective CO2 transport to the electrode surface.","PeriodicalId":343,"journal":{"name":"Joule","volume":"7 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148821570","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

The dual role of iron in alkaline water electrolysis: A friend or a foe? 铁在碱性电解中的双重作用：是友还是敌？

IF 39.8 1区材料科学

Joule Pub Date : 2026-08-25 DOI: 10.1016/j.joule.2026.102639

Virginia Larson,Woo Yeong Noh,Alejandra Medrano-Banda,Jianxin Wang,Frederick Agyapong-Fordjour,Lonneke van Eijk,Emilia McCann,Yaneiska M. Ruiz Torres,Hung-Ming Joseph Chang,Xiang Lyu,Alexey Serov,Ronnie Emmons,Kaline Nascimento da Silva,Iryna V. Zenyuk,Svitlana Pylypenko,Di-Jia Liu,Pietro Papa Lopes,David Aymé-Perrot,Meital Shviro

{"title":"The dual role of iron in alkaline water electrolysis: A friend or a foe?","authors":"Virginia Larson,Woo Yeong Noh,Alejandra Medrano-Banda,Jianxin Wang,Frederick Agyapong-Fordjour,Lonneke van Eijk,Emilia McCann,Yaneiska M. Ruiz Torres,Hung-Ming Joseph Chang,Xiang Lyu,Alexey Serov,Ronnie Emmons,Kaline Nascimento da Silva,Iryna V. Zenyuk,Svitlana Pylypenko,Di-Jia Liu,Pietro Papa Lopes,David Aymé-Perrot,Meital Shviro","doi":"10.1016/j.joule.2026.102639","DOIUrl":"https://doi.org/10.1016/j.joule.2026.102639","url":null,"abstract":"Trace iron (Fe) impurities pose a challenge in alkaline water electrolysis (AWE) and can significantly impact long-term performance, yet their comprehensive system-level effects remain poorly understood. Here, we present the mechanistic roles of Fe in AWE, using combined rotation disk electrode studies, zero-gap cell measurements, and durability tests up to 1,000 h. Fundamental electrochemistry shows that Fe deposition proceeds through a solution-mediated pathway, with dendritic growth triggered under specific mass-transport and potential conditions. In single-cell operation, Fe incorporation substantially enhances nickel (Ni)-based anode activity by forming highly active Ni-Fe oxyhydroxides, while cathodic Fe forms either thin films or dendrites, depending on potential, surface morphology, and electrolyte distribution. Although dendrites do not degrade hydrogen evolution performance up to 1,000 h, they reveal partial intrusion into the separator, indicating a potential durability risk. We identify five governing factors controlling Fe dendrite formation and provide design principles for impurity-resilient AWE systems.","PeriodicalId":343,"journal":{"name":"Joule","volume":"36 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148821573","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