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Light Irradiation of N-Doped Graphene Acid: Metal-Free Strategy Toward Antibacterial and Antiviral Coatings With Dual Modes of Action
IF 10.7
EcoMat Pub Date : 2025-03-26 DOI: 10.1002/eom2.70009
Giacomo Reina, David Panáček, Krista Rathammer, Stefanie Altenried, Philipp Meier, Paula Navascués, Zdeněk Baďura, Paula Bürgisser, Vera Kissling, Qun Ren, Radek Zbořil, Peter Wick
{"title":"Light Irradiation of N-Doped Graphene Acid: Metal-Free Strategy Toward Antibacterial and Antiviral Coatings With Dual Modes of Action","authors":"Giacomo Reina,&nbsp;David Panáček,&nbsp;Krista Rathammer,&nbsp;Stefanie Altenried,&nbsp;Philipp Meier,&nbsp;Paula Navascués,&nbsp;Zdeněk Baďura,&nbsp;Paula Bürgisser,&nbsp;Vera Kissling,&nbsp;Qun Ren,&nbsp;Radek Zbořil,&nbsp;Peter Wick","doi":"10.1002/eom2.70009","DOIUrl":"https://doi.org/10.1002/eom2.70009","url":null,"abstract":"<p>The increasing emergence of antimicrobial resistance and the development of new infective viral strains represent a constantly growing threat. Metal-based nanomaterials have emerged as promising tools in the fight against bacterial and viral infections; however, the release of metal nanoparticles/ions in clinical applications may cause undesired side effects (allergies, systemic toxicity), reducing their practical use in antimicrobial treatment. Moreover, the metal-based nanoparticles possess predominantly antibacterial effects, while their antiviral efficiency remains controversial. Thus, the development of metal-free strategies enabling combined antibacterial/antiviral properties is a significant challenge. Here, we report a strategy based on light irradiation of nitrogen-doped graphene acid (NGA) possessing dual photothermal and photodynamic modes of action. The antimicrobial activity is activated through a clinically approved near-infrared (NIR) light source, and both viral and bacterial spreading can be hampered on the coating irradiation on a scale of minutes (5 to 10 min). The developed metal-free strategy reduced 90.9% and 99.99% for <i>S. aureus</i> and <i>P. aeruginosa</i>, respectively, as well as 99.97% for murine hepatitis virus. Importantly, this research represents a significant advancement in the development of safe, metal-free, and effective antimicrobial treatments. NGA coatings are safe for skin, showing no sensitization or irritation, and offer significant potential for advanced antimicrobial treatments.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Platinum Group Metal-Indium Carbon-Interstitial Compounds for Hydrogen Production
IF 10.7
EcoMat Pub Date : 2025-03-21 DOI: 10.1002/eom2.70008
Xiaopeng Liu, Ankang Jia, Kezhu Jiang, Ju Huang, Wei Deng, Shuxing Bai
{"title":"Platinum Group Metal-Indium Carbon-Interstitial Compounds for Hydrogen Production","authors":"Xiaopeng Liu,&nbsp;Ankang Jia,&nbsp;Kezhu Jiang,&nbsp;Ju Huang,&nbsp;Wei Deng,&nbsp;Shuxing Bai","doi":"10.1002/eom2.70008","DOIUrl":"https://doi.org/10.1002/eom2.70008","url":null,"abstract":"<p>Carbon-interstitial compounds of precious metal alloys (C<sub>i</sub>-PMA) have attracted increased attention as effective catalytic materials, but their precise and controllable synthesis remains significant challenges. Herein, we have established a universal approach for the straightforward synthesis of supported C<sub>i</sub>-platinum group metal-indium alloys (M<sub>3</sub>InCx, M = Pt, Pd, Ni, <i>x</i> = 0.5 or 1). The control experiment results indicate that the C atoms in Pt<sub>3</sub>InC<sub>0.5</sub> come from the solvent. Furthermore, 0.2 wt.% Pt<sub>3</sub>InC<sub>0.5</sub>/SiO<sub>2</sub> exhibits excellent catalytic performance for aqueous phase reforming (APR) of methanol (CH<sub>3</sub>OH) to produce hydrogen, with productivity and turnover frequency of 310.0 <sup>−1</sup>mol·kgcat·h<sup>−1</sup> and 30 126 h<sup>−1</sup> at 200°C, which are 1.7 times greater than those of Pt<sub>3</sub>In/SiO<sub>2</sub>. The infrared results of CH<sub>3</sub>OH adsorption reveal that the substantially better performance for APR of CH<sub>3</sub>OH of Pt<sub>3</sub>InC<sub>0.5</sub>/SiO<sub>2</sub> than Pt<sub>3</sub>In/SiO<sub>2</sub> is due to its significantly enhanced C<span></span>H bond dissociation ability. This study not only provides a straightforward and universal approach for the controlled synthesis of C<sub>i</sub>-PMA but also stimulates fundamental research into C<sub>i</sub>-PMA for catalysis and other applications.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring Gas/Solid Interface Reactions of Solid Oxide Cell Electrodes via Model Thin-Film Systems
IF 10.7
EcoMat Pub Date : 2025-03-20 DOI: 10.1002/eom2.70007
Jinwook Kim, Hyunseung Kim, Seongwoo Nam, Yoonseok Choi, WooChul Jung
{"title":"Exploring Gas/Solid Interface Reactions of Solid Oxide Cell Electrodes via Model Thin-Film Systems","authors":"Jinwook Kim,&nbsp;Hyunseung Kim,&nbsp;Seongwoo Nam,&nbsp;Yoonseok Choi,&nbsp;WooChul Jung","doi":"10.1002/eom2.70007","DOIUrl":"https://doi.org/10.1002/eom2.70007","url":null,"abstract":"<p>Solid oxide cells (SOCs) are promising energy conversion devices capable of efficiently converting electrical energy to chemical energy and vice versa. Enhancing efficiency and durability in SOCs necessitates a thorough understanding of the electrode's gas/solid interface, which is often hindered by the intricate structures of actual cells. Consequently, researchers have turned to thin-film-based model systems with well-defined structures to advance this understanding. This review delves into the fundamental studies conducted using these systems to investigate phenomena at the electrode interfaces of SOCs. It systematically addresses how model electrodes are fabricated and assessed, along with the various phenomena that have been studied through these systems. Moreover, this review explores research areas within SOCs that require more in-depth study, which can be facilitated by the use of thin-film-based model systems. In this review, we aim to underscore how simplified models can yield crucial insights into the interface dynamics of SOC electrodes, potentially steering the development of more efficient and stable SOCs.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated Contact and Chemical Prelithiation Method to Boost Coulombic Efficiency of Si-Based Anodes for Li-Ion Batteries
IF 10.7
EcoMat Pub Date : 2025-03-18 DOI: 10.1002/eom2.70010
Yu-Kang Chung, Asif Latief Bhat, Yu-Sheng Su
{"title":"Integrated Contact and Chemical Prelithiation Method to Boost Coulombic Efficiency of Si-Based Anodes for Li-Ion Batteries","authors":"Yu-Kang Chung,&nbsp;Asif Latief Bhat,&nbsp;Yu-Sheng Su","doi":"10.1002/eom2.70010","DOIUrl":"https://doi.org/10.1002/eom2.70010","url":null,"abstract":"<p>Silicon-based anodes are considered a promising alternative for next-generation lithium-ion batteries (LIBs) due to their high theoretical capacity, which is significantly greater than that of traditional graphite anodes. However, the inherent challenge of the associated low initial Coulombic efficiency (ICE) due to irreversible lithium consumption limits their practical applications. Prelithiation techniques have emerged as a solution to compensate for this initial lithium loss, but current methods often face challenges such as high costs, incomplete lithiation, and complex setups. In this study, we present a novel modified direct contact prelithiation method utilizing a Li-ion-free biphenyl solution. This innovative approach integrates the advantages of both direct contact and wet chemical prelithiation, achieving fast, uniform, and cost-effective prelithiation of Si-based anodes. Electrochemical characterizations demonstrate that the method significantly enhances ICE, reaching from 66.7% to 115.4% after 10 min of prelithiation for SiO<sub>x</sub> anodes and from 91.4% to 100.5% after just 90 s of prelithiation for Si anodes, while also stabilizing open-circuit voltage. Furthermore, microstructural analyses reveal the formation of a distinct solid electrolyte interphase layer after prelithiation. XPS depth profiling confirms the progressive lithiation of Si-based anodes, highlighting the formation of lithium oxide and lithium silicate compounds at varying depths with extended prelithiation times. These findings demonstrate the effectiveness of the proposed integrated prelithiation method in enhancing the electrochemical performance of Si-based anodes, paving the way for the development of high-energy-density LIBs.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances and Applications of Flexible Phase Change Composites
IF 10.7
EcoMat Pub Date : 2025-03-18 DOI: 10.1002/eom2.70004
Lichang Lu, Hongxu Guo, Ignacio Martin-Fabiani, Ye Zhou, Helen Willcock, Goran T. Vladisavljević, James JC Busfield, Emiliano Bilotti, Ton Peijs, Han Zhang, Yi Liu
{"title":"Recent Advances and Applications of Flexible Phase Change Composites","authors":"Lichang Lu,&nbsp;Hongxu Guo,&nbsp;Ignacio Martin-Fabiani,&nbsp;Ye Zhou,&nbsp;Helen Willcock,&nbsp;Goran T. Vladisavljević,&nbsp;James JC Busfield,&nbsp;Emiliano Bilotti,&nbsp;Ton Peijs,&nbsp;Han Zhang,&nbsp;Yi Liu","doi":"10.1002/eom2.70004","DOIUrl":"https://doi.org/10.1002/eom2.70004","url":null,"abstract":"<p>Flexible phase change composites (FPCCs) have garnered significant attention for their ability to combine high latent heat capacity with mechanical flexibility. This combination enables advanced thermal management in emerging fields such as flexible electronics, soft robotics, and wearable technologies. Traditional phase change materials (PCMs) excel in energy absorption and release. However, their rigidity limits their applicability in the sectors above. Existing reviews largely focus on encapsulation methods and traditional PCM applications, leaving a gap in the literature concerning flexibility enhancement strategies and FPCC-specific applications. This review seeks to address this gap by presenting a comprehensive timeline of FPCC development, elucidating the principles of latent heat capacity, and systematically reviewing recent advancements in the field. Emphasis is placed on design strategies at both the structural level, such as fiber and foam configurations, and materials level, including physical blending and molecular engineering. Performance comparisons are provided, evaluating FPCCs in terms of both latent heat storage and mechanical flexibility. Furthermore, the review explores diverse applications of FPCCs in thermal energy storage, transfer, conversion, and release, underscoring their potential in cutting-edge sectors. By highlighting FPCCs' versatility and interdisciplinary applications, this review aims to inspire further research and integration of FPCCs into domains requiring both mechanical flexibility and thermal energy management solutions.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 4","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Layer-By-Layer Growth of Organic Molecules Controlled by the Defective Inorganic Surface for Enhanced Corrosion Protection and Bioactivity Properties of Magnesium Alloy
IF 10.7
EcoMat Pub Date : 2025-03-02 DOI: 10.1002/eom2.70005
Farah Hazmatulhaq, Yujun Sheng, Tri Suhartono, Alaa Magdy Saad, Salsabila Salsabila, Bassem Assfour, Wail Al Zoubi, Young Gun Ko
{"title":"Layer-By-Layer Growth of Organic Molecules Controlled by the Defective Inorganic Surface for Enhanced Corrosion Protection and Bioactivity Properties of Magnesium Alloy","authors":"Farah Hazmatulhaq,&nbsp;Yujun Sheng,&nbsp;Tri Suhartono,&nbsp;Alaa Magdy Saad,&nbsp;Salsabila Salsabila,&nbsp;Bassem Assfour,&nbsp;Wail Al Zoubi,&nbsp;Young Gun Ko","doi":"10.1002/eom2.70005","DOIUrl":"https://doi.org/10.1002/eom2.70005","url":null,"abstract":"<p>Although Mg metal offers advantages such as a high strength-to-weight ratio, biocompatibility, low cost, and nontoxicity, fabricating coated Mg with high chemical stability and antibacterial activity remains a formidable challenge. To date, the problems of continuous corrosion caused by uncontrolled Mg electrodeposition and serious interfacial side reactions in aqueous solutions have remarkably slowed down the practical application of metallic Mg. To address these issues, we proposed a combination approach of interface–plasma electrolysis (I-PE) and layer-by-layer (LbL) deposition to fabricate a tannic acid (TA)–MgO hybrid coating on an Mg anode, in which the TA layer served as the blocking layer and porous MgO films had microdefects that triggered physical locking. LbL formation was initiated through the charge-transfer phenomenon between the defective porous surface and TA molecules in the presence of cross-linkers, such as 2,5-diamino-1,3,4-thiadiazole (DAT) and 2-amino-5-mercapto-1,3,4-thiadiazole (AMT), to induce LbL deposition, that is, the consecutive growth of multilayer molecular structures on 2D hybrid organic–inorganic materials. The prepared coating surprisingly exhibited highly exceptional anticorrosion properties (inhibition efficiency ~82% and corrosion rate ~1610 nA/cm<sup>2</sup>) and excellent antibacterial activity, which are attributed to the optimized crosslinking degree and compactness due to the interaction between the TA–AMT composite and the porous MgO film. Density functional theory (DFT) calculations were performed to understand the reaction process between the organic AMT layers and the porous inorganic surface by bonding, adsorption behavior, and energy.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 3","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing Li-Ion Transport in LaCl3−xBrx Solid Electrolytes Through Anion Mixing
IF 10.7
EcoMat Pub Date : 2025-03-02 DOI: 10.1002/eom2.70006
Xudong Mao, James A. Dawson
{"title":"Optimizing Li-Ion Transport in LaCl3−xBrx Solid Electrolytes Through Anion Mixing","authors":"Xudong Mao,&nbsp;James A. Dawson","doi":"10.1002/eom2.70006","DOIUrl":"https://doi.org/10.1002/eom2.70006","url":null,"abstract":"<p>Solid-state batteries based on versatile halide solid electrolytes with outstanding ionic conductivity, electrode compatibility, and stability are attracting significant research attention. Recent experimental studies have illustrated the outstanding performance of LaCl<sub>3</sub> as a solid electrolyte capable of conducting Li ions through its one-dimensional channels that can be interconnected into a three-dimensional network through the creation of La vacancies. In this work, we present a composition optimization strategy for maximizing the Li-ion conductivity in LaCl<sub>3−<i>x</i></sub>Br<sub><i>x</i></sub> solid electrolytes based on density functional theory and ab initio molecular dynamics simulations. Our simulations show LaCl<sub>2.5</sub>Br<sub>0.5</sub> to have a remarkable Li-ion conductivity of 66 mS cm<sup>−1</sup> at 300 K and the lowest activation energy of 0.10 eV, followed by LaCl<sub>0.5</sub>Br<sub>2.5</sub> with values of 14 mS cm<sup>−1</sup> and 0.13 eV, respectively. Both these compositions are predicted to be easily synthesizable, have large band gaps, and are likely to be of experimental interest given their outstanding Li-ion transport properties. Our results highlight the potential for enhanced Li-ion conductivity in LaCl<sub>3−<i>x</i></sub>Br<sub><i>x</i></sub> solid electrolytes that can be achieved through anion mixing.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 3","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanotechnology-Enabled Devices for Ocean Internet of Things
IF 10.7
EcoMat Pub Date : 2025-02-19 DOI: 10.1002/eom2.70003
Chenjing Shang, Yi Chen, Zhuhang Dai, Yaxiaer Yalikun, Lihua Qian, Pooi See Lee, Yang Yang
{"title":"Nanotechnology-Enabled Devices for Ocean Internet of Things","authors":"Chenjing Shang,&nbsp;Yi Chen,&nbsp;Zhuhang Dai,&nbsp;Yaxiaer Yalikun,&nbsp;Lihua Qian,&nbsp;Pooi See Lee,&nbsp;Yang Yang","doi":"10.1002/eom2.70003","DOIUrl":"https://doi.org/10.1002/eom2.70003","url":null,"abstract":"<p>The growing utilization of the Ocean Internet of Things (Ocean IoT) has a significant impact on human society. Recent advances in nanotechnology in terms of developing unprecedented structural, mechanical, electrical, chemical, and photonic properties have led to devices that are expected to promote the sustainable growth of the emerging Ocean IoT. This review provides a system-level analysis of nanotechnology-enabled sensors, actuators, energy harvesting, antifouling coatings, and environmental remediation that have been developed, with a focus on their materials, structures, and manufacturing technologies, as well as their merits and drawbacks. The challenges associated with the ecotoxicity of nanotechnology-derived pollutants in marine ecosystems are also discussed. Finally, potential future research directions are presented for this emerging field.</p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 3","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toward Sustainable Perovskite Solar Cells: From Lead-Free Materials to Environmental Concerns and Mitigation Strategies
IF 10.7
EcoMat Pub Date : 2025-02-19 DOI: 10.1002/eom2.70001
Shanshan Gao, Jeong-Ju Bae, Da Seul Lee, Tae-Youl Yang, Seong Sik Shin
{"title":"Toward Sustainable Perovskite Solar Cells: From Lead-Free Materials to Environmental Concerns and Mitigation Strategies","authors":"Shanshan Gao,&nbsp;Jeong-Ju Bae,&nbsp;Da Seul Lee,&nbsp;Tae-Youl Yang,&nbsp;Seong Sik Shin","doi":"10.1002/eom2.70001","DOIUrl":"https://doi.org/10.1002/eom2.70001","url":null,"abstract":"<p>Perovskite solar cells (PSCs) have attracted considerable attention in the field of photovoltaics owing to their high power conversion efficiency (PCE), cost-effective production methods, and versatile applications. However, the widespread use of lead (Pb)-based materials in PSCs poses challenges related to their toxicity and environmental sustainability. This review explores recent advances in the development of Pb-free perovskite materials, such as tin (Sn)-based, germanium (Ge)-based, and other B(IV) and B(III) cation alternatives, while assessing their electronic properties, stability, and performance-enhancing strategies. Additionally, we discuss the use of green solvents and fabrication techniques to minimize their environmental impact. This review aims to guide future research toward safe, efficient, and environmentally sustainable PSC technologies, ensuring that the benefits of solar energy can be harnessed without compromising human health or the environment.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 3","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Triphase Heterogeneous Electrocatalysts of Ni and Co for High-Performing Li-O2 Batteries
IF 10.7
EcoMat Pub Date : 2025-02-16 DOI: 10.1002/eom2.70002
Shadeepa Karunarathne, Chanaka Sandaruwan, Yasun Y. Kannangara, Denisa Demko, François Orange, Alice Mija, Ali Reza Kamai, Amr M. Abdelkader
{"title":"Triphase Heterogeneous Electrocatalysts of Ni and Co for High-Performing Li-O2 Batteries","authors":"Shadeepa Karunarathne,&nbsp;Chanaka Sandaruwan,&nbsp;Yasun Y. Kannangara,&nbsp;Denisa Demko,&nbsp;François Orange,&nbsp;Alice Mija,&nbsp;Ali Reza Kamai,&nbsp;Amr M. Abdelkader","doi":"10.1002/eom2.70002","DOIUrl":"https://doi.org/10.1002/eom2.70002","url":null,"abstract":"<p>The limited energy density of the current Li-ion batteries restricts the electrification of transportation to small- and medium-scale vehicles. On the contrary, Li-O<sub>2</sub> batteries (LOBs), with their significantly higher theoretical energy density, can power heavy-duty transportation, if the sluggish electrode kinetics in these devices can be substantially improved. The use of solid electrocatalysts at the cathode is a viable strategy to address this challenge, but current electrocatalysts fail to provide sufficient discharge depths and cyclability, primarily due to the formation of the film-like discharge product, Li₂O₂, on catalytic sites, which obstructs charge transport and gas diffusion pathways. Here, we report that a triphase heterogeneous catalyst comprising NiCoP, NiCo<sub>2</sub>S<sub>4</sub>, and NiCo<sub>2</sub>O<sub>4</sub>, assembled into a hierarchical hollow architecture (NC-3@Ni), efficiently modulates the morphology and orientation of the discharge product, facilitating the sheet-like growth of Li<sub>2</sub>O<sub>2</sub> perpendicular to the cathode surface. These modifications enable the assembled LOB to deliver a high discharge capacity of 25 162 mAh g<sup>−1</sup> at 400 mA g<sup>−1</sup>, along with impressive cycling performance, achieving 270 cycles with a discharge depth of 1000 mAh g<sup>−1</sup>, exceeding 1350 h of continuous operation. This promising performance is attributed to the presence of individual electrophilic and nucleophilic phases within the heterogeneous microstructure of the triphase catalyst, collectively promoting the formation of sheet-like Li<sub>2</sub>O<sub>2</sub>.</p><p>\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"7 3","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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