材料导报:能源(英文)最新文献

{"title":"Inhibiting overoxidation of ruthenium oxides by zinc doping for promoting a highly efficient proton exchange membrane water electrolyzer","authors":"Gaopeng Huang,&nbsp;Lifang Zhang,&nbsp;Xiaojun Pan,&nbsp;Xiangxiong Feng,&nbsp;Hongyu Yang,&nbsp;Kaichen Wang,&nbsp;Feng Ye,&nbsp;Xin Xia,&nbsp;Jia Li,&nbsp;Chao Xu,&nbsp;Jianguo Liu,&nbsp;Guicheng Liu","doi":"10.1016/j.matre.2026.100427","DOIUrl":"10.1016/j.matre.2026.100427","url":null,"abstract":"<div><div>For proton exchange membrane water electrolyzers (PEMWE), it is critical to develop durable and powerful anodic oxygen evolution reaction (OER) catalysts. For acidic OER in PEMWE, efficient zinc-doped ruthenium dioxide catalysts with abundant oxygen vacancies and stable Ru–O bonding are fabricated here. The optimal Zn_0.1Ru_0.9O_{2−<em>x</em>} requires only 212 mV overpotential at a current density of 10 mA cm⁻² and maintains stability for over 500 h, with a degradation rate of only 30 μV h⁻¹ at 10 mA cm⁻². When used as the anode of a practical PEMWE device, Zn_0.1Ru_0.9O_{2−<em>x</em>} enables over 100 h of long-term stability at 100 mA cm⁻². DFT calculations reveal that Zn_0.1Ru_0.9O_{2−<em>x</em>}, containing oxygen vacancies, exhibits a lowered d-band center energy, which enhances the adsorption and desorption of oxygen intermediates, thereby improving OER activity. Experimental and theoretical studies show that Zn doping in RuO₂ enhances Ru–O bonding and increases oxygen vacancies. The synergy of Zn dopant and Ru species effectively stabilizes Ru–O bonding and prevents Ru species from overoxidizing during the OER process. Therefore, the modulated electronic structure of RuO₂ with Zn doping accelerates OER kinetics and promotes the durability of Ru–O bonding. This work develops a viable strategy for attaining favorable kinetics and durable oxygen evolution within energy conversion devices.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100427"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862056","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}

{"title":"Design and screening of high-performance catalytic materials based on the synergistic effects of multimodal energy carriers: A review","authors":"Rehan Khursheed,&nbsp;Yong Shuai,&nbsp;Bachirou Guene Lougou,&nbsp;Muhammad Rafique,&nbsp;Maroof Ali Panwar,&nbsp;Azeem Mustafa,&nbsp;Fuqiang Wang,&nbsp;Zhumabay Bakenov","doi":"10.1016/j.matre.2026.100448","DOIUrl":"10.1016/j.matre.2026.100448","url":null,"abstract":"<div><div>The excessive use of CO₂ poses significant challenges, such as rising concentration of greenhouse gases causing environmental disruption, rising sea levels, and depletion of economic resources. The prominent ways to convert CO₂ into sustainable fuels include thermochemical, electrochemical, and photochemical methods. Photothermal CO₂ conversion offers the significant advantage of reducing activation energy, enhancing reaction rates, and improving product selectivity. Extensive information on synergistic catalysts has been provided for CO₂ conversion, which increases reaction rates by coordinating photo and thermal energy to encourage two effects—photo and thermo—thereby overcoming intrinsic energy barriers of the CO₂ conversion reaction. This review particularly signifies the importance of metal-organic frameworks due to their stable structure, efficient access to multiple active sites, and better molecular control. A particular focus on manganese-based metal-organic framework (MOF) catalysts is presented due to their strong paramagnetic characteristics, redox activity, and stable oxidation states. Various parameters that influence the conversion are also considered, such as microstructure, strong metal support, nanomaterials, and single-atom catalyst. Key engineering challenges, such as techno-economic analysis, scalability, and efficient reactor design, have also been discussed, which center on molecular physics and materials durability. Recent advances have also been incorporated into this review, signifying the importance of computational techniques and kinetic modelling applications of MOF-based catalysts. Finally, future perspectives emphasize the key upcoming factors and offer a guideline for further advancement of CO₂ conversion.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100448"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862052","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}

{"title":"Dual-atom catalysts for lithium-sulfur battery cathodes: Synthesis, characterization, and catalytic mechanisms","authors":"Linyang Li,&nbsp;Jielun Xiao,&nbsp;Guoxiang Zhao,&nbsp;Jing Xu,&nbsp;Shuixin Xia,&nbsp;Xin Li,&nbsp;Yuepeng Pang,&nbsp;Junhe Yang,&nbsp;Hao Sun,&nbsp;Tao Yuan,&nbsp;Shiyou Zheng","doi":"10.1016/j.matre.2026.100451","DOIUrl":"10.1016/j.matre.2026.100451","url":null,"abstract":"<div><div>Lithium-sulfur batteries (LSBs) stand out as premier next-generation energy storage technologies due to their exceptional theoretical specific capacity and energy density. However, their commercial viability is severely hindered by the \"shuttle effect\" of lithium polysulfides (LiPSs), poor sulfur utilization, and sluggish redox kinetics. Dual-atom catalysts (DACs) have emerged as a transformative solution, offering maximized atomic utilization and unique electronic structures. In particular, the inter-site synergistic effects and modulated charge redistribution in DACs effectively immobilize LiPSs and accelerate their conversion. Crucially, this dual-site configuration enables a unique \"relay catalysis\" mechanism, in which the two coupled yet distinct active sites sequentially process different reaction intermediates, achieving efficient functional compartmentalization. This review systematically outlines the design principles, synthesis methods, and advanced characterization techniques for DACs in LSB cathodes. The structure-activity relationships are thoroughly analyzed, with particular attention to how dual-site architectures modulate the anchoring and catalytic conversion of sulfur species. Furthermore, the critical roles of DACs in enhancing rate capability, cycling longevity, and sulfur utilization are evaluated. Special emphasis is placed on operando/in situ characterization techniques (e.g., in situ XRD, Raman, and synchrotron-based methods) to reveal the real-time evolution of active sites and complex reaction pathways under practical operating conditions. Finally, we address current challenges in catalytic durability and scalable fabrication, and propose future directions for the rational design of high-performance DAC-based LSBs.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100451"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861899","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}

{"title":"Electrochemical water splitting for green hydrogen: Key material roles, persistent challenges, and outlook","authors":"Yousuf Abir Bari,&nbsp;Md Mahamudul Hasan Pranto,&nbsp;Zarin Tasnim Biva,&nbsp;Fuad Uddin Ahmad,&nbsp;Labiba Luzain,&nbsp;Monjur Mourshed","doi":"10.1016/j.matre.2026.100450","DOIUrl":"10.1016/j.matre.2026.100450","url":null,"abstract":"<div><div>Electrochemical water splitting offers a compelling pathway to large-scale green hydrogen production, yet renewable sources account for merely 1% of global hydrogen supply, with production costs (USD 2.28–7.39 kg⁻¹) remaining far above the fossil-derived benchmark (USD 0.67–1.31 kg⁻¹). This review systematically maps the convergence of substrate engineering, catalyst design, real-water degradation, and forward osmosis (FO) integration, moving beyond isolated catalyst-centric metrics. Three-dimensional (3D) binder-free substrates, including nickel foam, carbon cloth, and stainless-steel mesh, reduce mass-transport overpotentials by 100–270 mV relative to planar electrodes. Earth-abundant Fe- and Ni-doped catalysts deliver hydrogen evolution reaction (HER) overpotentials as low as 50 mV at 10 mA cm⁻² and oxygen evolution reaction (OER) overpotentials of 211–332 mV at 10–1000 mA cm⁻², with operational lifetimes of up to 1000 h. Heterostructure engineering further extends stability, with a FeCoP/TiN electrode sustaining 2000 h in alkaline freshwater and 340 h in alkaline seawater at 500 mA cm⁻². Noble metal loadings have been reduced to as low as 2.6 μg cm⁻² for Ru (achieving an overpotential of 10 mV at 10 mA cm⁻² in 1.0 M KOH) and to 50 μg cm⁻² for both Ru (in AEMWE at 1000 mA cm⁻²) and Pt (in PEMWE at 100 mA cm⁻²). At these ultra-low loadings, Ru and Pt achieve degradation rates of 0.43 mV h⁻¹ and 8.3 × 10⁻³ mV h⁻¹, respectively, over 500–600 h, demonstrating up to 14-fold greater stability to commercial benchmarks. Moreover, FO pretreatment with phosphate buffer draw solutions achieves 99.6% rejection of divalent scaling ions and 97.8% rejection of Cl⁻/Br⁻, enabling stable operation beyond 360 h at 360 mA cm⁻² in alkaline seawater, with life-cycle emissions of only 0.3–2.4 kg CO₂-eq. per kg H₂, compared to 27.5 kg CO₂-eq. per kg H₂ for fossil-based routes. The findings establish FO-electrolysis integration, bifunctional heterostructure catalysts, and superaerophobic 3D electrode architectures as the essential foundations for commercially viable, freshwater-independent green hydrogen production.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100450"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862051","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}

{"title":"Cobalt-atom electrocatalytic framework on CO2-derived defective carbon for enhanced H2O2 production across pH levels","authors":"Jimin Lee,&nbsp;Yeongjun Yoon,&nbsp;Wenjun Zhang,&nbsp;Won Chan Yun,&nbsp;Keun Hwa Chae,&nbsp;Ayeong Byeon,&nbsp;Jinli Qiao,&nbsp;Jong Min Kim,&nbsp;Kyeounghak Kim,&nbsp;Jae W. Lee","doi":"10.1016/j.matre.2026.100431","DOIUrl":"10.1016/j.matre.2026.100431","url":null,"abstract":"<div><div>The increasing demand for hydrogen peroxide (H₂O₂) has highlighted the importance of developing sustainable production methods. Electrochemical H₂O₂ synthesis via the two-electron oxygen reduction reaction (2e⁻ ORR) has gained attention as a promising alternative to the conventional anthraquinone process. This study introduces a cobalt single-atom catalyst supported on oxygen-functionalized defective CO₂-derived porous carbon (Co/O-d-CPC) for 2e⁻ ORR. The electronic structure of the cobalt atoms in the molecular catalysts is modulated due to oxygen dopants in the carbon matrix, enabling them to serve as effective active sites for the 2e⁻ ORR. Density functional theory (DFT) calculations and structural characterizations revealed the critical role of specific oxygen functionalities, specifically, triple-coordinated oxygen groups, in optimizing the cobalt single atoms. The synergistic effect between cobalt and these oxygen groups significantly enhanced the 2e⁻ ORR catalytic performance. The electrocatalyst was evaluated under a wide range of pH conditions and demonstrated an average H₂O₂ selectivity of 93% within the voltage range of 0.2–0.45 V vs. RHE in neutral media, with significant performance improvements also observed in acidic and alkaline electrolytes. Notably, in flow cell tests with neutral electrolytes, Co/O-d-CPC achieved an exceptional H₂O₂ production rate of 14.4 mol g⁻¹ h⁻¹ at a constant current of 300 mA cm⁻².</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100431"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862054","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}

{"title":"Energy-saving hydrogen generation enabled by boosted hydrazine oxidation over hierarchical Co/Ru–RuPx interfaces","authors":"Chae Eun Park,&nbsp;Raja Arumugam Senthil,&nbsp;Rahul Kerkar,&nbsp;Deepak Arumugam,&nbsp;Soohan Yun,&nbsp;Santhoshkumar Bandaru,&nbsp;Shankar Ramasamy,&nbsp;Soorathep Kheawhom,&nbsp;Myong Yong Choi","doi":"10.1016/j.matre.2026.100424","DOIUrl":"10.1016/j.matre.2026.100424","url":null,"abstract":"<div><div>The efficiency and sustainability of water splitting for green hydrogen production are often hindered by the limited performance of electrocatalysts and the sluggish kinetics of the anodic oxygen evolution reaction (OER). To overcome these challenges, this study reports a laser-engineered cobalt-integrated Ru–RuP_<em>x</em> (Co/Ru–RuP_<em>x</em>) electrocatalyst with a hierarchical architecture for hydrazine-assisted water splitting. The optimized Co(4)/Ru–RuP_<em>x</em> catalyst, with Co:Ru–RuP_<em>x</em> ratio of 4:1, exhibits remarkable activity toward the hydrazine oxidation reaction (HzOR), requiring an ultra-low potential of 49 mV versus reversible hydrogen electrode (RHE) at 10 mA cm⁻², significantly outperforming the benchmark IrO₂ catalyst. Furthermore, an overall hydrazine splitting employing a Pt/C||Co(4)/Ru–RuP_<em>x</em> achieves a cell voltage as low as 0.152 V at 10 mA cm⁻², yielding substantial energy savings (Δ<em>E</em>≈1.48 V) compared to conventional water electrolysis, which demands 1.638 V at 10 mA cm⁻². In situ Raman spectroscopy reveals the formation of key intermediates on the surface of the Co(4)/Ru–RuP_<em>x</em> catalyst during the HzOR dehydrogenation pathway. Complementary density functional theory (DFT) calculations reveal that the Co/Ru–RuP_<em>x</em> catalyst exhibits enhanced interfacial electronic structure, favorable d-band center alignment, and significant charge redistribution across Co, Ru, and RuP₂ sites. These features promote strong adsorption and activation of N₂H₄, leading to a low energy barrier of 0.31 eV for the rate-determining step and thereby boosting HzOR activity. This work highlights that the synthesized cobalt-modified Ru–RuP_<em>x</em> is an efficient electrocatalyst for energy-efficient clean hydrogen technologies.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100424"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862055","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}

{"title":"Machine learning-driven DFT modeling of oxide perovskites as oxygen electrodes for solid oxide electrochemical cells","authors":"Marcos Vinicios Barp,&nbsp;Sebastian Vecino-Mantilla,&nbsp;Luiz Gustavo Zandavalli,&nbsp;Edoardo Gallo,&nbsp;Rolando Pedicini,&nbsp;Massimiliano Lo Faro","doi":"10.1016/j.matre.2026.100444","DOIUrl":"10.1016/j.matre.2026.100444","url":null,"abstract":"<div><div>In this work, we present a machine learning-accelerated density functional theory framework for predicting key electrochemical descriptors of oxide perovskites used as oxygen electrodes in solid oxide electrochemical cells, specifically the electronic band gap and oxygen vacancy formation energy. Two classes of models were developed and optimized, tree-based and neural network, using intrinsic properties of the constituent cations as input features. The analyses based on permutation feature importance and SHAP values revealed that both B-site electronic properties and A-site geometric properties play significant roles in determining these descriptors. DFT validation on SrFe_0.25Mo_0.25Co_0.25Mn_0.25O₃₋_<em>δ</em> confirmed the machine learning predictions, demonstrating the reliability of the proposed approach. This integrated ML-DFT methodology provides a robust and interpretable framework for accelerating the discovery of functional perovskites for energy conversion applications.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100444"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862058","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}

{"title":"High-performance triazine-structured polymeric ionic liquid cross-linking membranes with superior proton conductivity and phosphoric acid retention for high-temperature PEMFCs","authors":"Wenlong Xu,&nbsp;Jinyu Guan,&nbsp;Jiapeng Yang,&nbsp;Xuting Ma,&nbsp;Chukun Zheng,&nbsp;Yuange Cao,&nbsp;Xianfeng Guan,&nbsp;Shuyu Zhang,&nbsp;Wanzhen Wu,&nbsp;Shuang Wang","doi":"10.1016/j.matre.2026.100430","DOIUrl":"10.1016/j.matre.2026.100430","url":null,"abstract":"<div><div>Polymeric ionic liquids (PILs) serve as excellent modifying materials in the field of high-temperature proton exchange membranes, with the ability to notably enhance phosphoric acid retention capacity via ion-pair interactions. In this study, the triazine structure is introduced that increases the membrane's free volume and enables the incorporation of high-density quaternary ammonium (QA) groups. By crosslinking this triazine-ring hydroxyethyl ionic liquid at various concentrations (HIL_<em>x</em>, <em>x</em>=5–20 wt%) with N-H-free polybenzimidazole (NbPBI), we fabricated a series of HT-PEMs that preserve the polymer backbone while improving PA retention and proton conductivity. This approach not only improves the retention rate of phosphoric acid (PA) but also enhances proton conductivity without depleting the sites of main-chain N–H. The optimized NbPBI-HIL₁₅ membrane achieved a proton conductivity of 104.5 mS cm⁻¹ at 180 °C, while the NbPBI-HIL₂₀ membrane retained 81% of its PA at 80 °C and 40% relative humidity (RH). In fuel cell tests, the NbPBI-HIL₁₅ membrane achieved a peak power density of 737 mW cm⁻² at 160 °C without back pressure. These results demonstrate that NbPBI-HIL_<em>x</em> composite membranes are expected to be potential materials for high-temperature proton exchange membranes (HT-PEMs).</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100430"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862059","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}

{"title":"Structure-engineered amorphous MoS3 catalysts for enhanced sulfur conversion kinetics in wide-temperature lithium-sulfur batteries","authors":"Kaijie Miao,&nbsp;Shilin Chen,&nbsp;Fei Chen,&nbsp;Jiangqi Zhou","doi":"10.1016/j.matre.2026.100405","DOIUrl":"10.1016/j.matre.2026.100405","url":null,"abstract":"<div><div>Lithium-sulfur batteries have garnered significant attention due to their high theoretical energy density. However, their widespread application across a wide temperature range is still hindered by the exacerbated lithium polysulfide shuttle effect and slow reaction kinetics. Although crystalline materials currently dominate the design of highly catalytically active sulfur hosts, their inherent structural anisotropy often induces lattice strain and structural degradation during electrochemical cycling. This study presents an engineered two-dimensional heterostructure combining amorphous molybdenum sulfide (MoS₃) with reduced graphene oxide (MoS₃-rGO) as sulfur host. The abundant defect vacancies and unsaturated bonds in amorphous MoS₃ can enhance the adsorption of lithium polysulfides, substantially reducing the shuttle effect. The exposed rich catalytic active sites within the two-dimensional architecture effectively accelerate the electrochemical reaction processes, promoting rapid lithium polysulfides adsorption-transfer-conversion kinetics. Such synergistic mechanism effectively suppresses the intense shuttle effect induced at high temperature while simultaneously improving the sulfur redox reaction rates at low temperature. When implemented as a sulfur host, the MoS₃-rGO/S cathodes exhibit high specific capacity (1263 mAh g⁻¹ at 0.2C), exceptional rate performance (645 mAh g⁻¹ at 5C) and cycling stability (642 mAh g⁻¹ after 800 cycles at 2C) at room temperature. With high sulfur loading of 8.8 mg cm⁻² and lean electrolyte volume of 5.5 μL mg⁻¹, the MoS₃-rGO/S cathodes achieve a remarkable areal capacity of 9.7 mAh cm⁻² and stably cycle over 100 cycles. Even in a wide temperature range (−25–70 °C), the as-constructed MoS₃-rGO/S cathodes still maintain above 70 % capacity retention over 500 cycles at 2C, outperforming most reported catalyst modified Li-S batteries reported to date. Such amorphous metal sulfide-based electrocatalyst design provides a pathway towards realizing wide-temperature Li-S batteries.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100405"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862053","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}

{"title":"Incorporating different MoSx/rGO catalysts in interlayer and cathode to enhance Li-S battery performance: A dual-catalyst strategy","authors":"Zahirul Islam Saddam,&nbsp;Jun Li","doi":"10.1016/j.matre.2026.100433","DOIUrl":"10.1016/j.matre.2026.100433","url":null,"abstract":"<div><div>Lithium polysulfide (LPS) shuttling remains a fundamental challenge that limits the cycle life of Li-S batteries (LSBs). Though incorporating electrocatalysts in the S cathode improves the LPS conversion and confinement, it is difficult to fully resolve this issue with a single electrocatalyst because LSB redox chemistry involves multiple redox steps with a series of soluble LPSs in sequential reactions. Here, we demonstrate that a dual-catalyst strategy can significantly enhance the LPS conversion kinetics, specific capacity, and long-term cycling stability compared to mono-catalyst approaches. To achieve this, we employ a thin catalyst coating on the S-C cathode as a catalytic interlayer, which promotes LPS conversion and improves their retention in the cathode. A family of molybdenum sulfide (MoS_<em>x</em>) materials supported on reduced graphene oxide (rGO) nanosheets is synthesized using specific microwave heating followed by thermal treatment at 250 °C or 600 °C to form 1D chain-like amorphous MoS₃ and 2D crystalline MoS₂ nanosheetst, denoted as 1D MoS₃/rGO-250 and 2D MoS₂/rGO-600, respectively. The 1D MoS₃/rGO-250 exhibits a higher LPS adsorption and higher specific capacity, whereas the 2D MoS₂/rGO-600 delivers superior conductivity, faster kinetics, and long-term stability, albeit at slightly lower specific capacity. When combining MoS₂/rGO-600 in the S-C cathode and MoS₃/rGO-250 in the interlayer (denoted as S-M6∖M2), the synergistic effect leads to a remarkable initial specific capacity of ∼1417 mAh g⁻¹ at 0.1C and ∼1000 mAh g⁻¹ at 1C, with good capacity retention over 500 cycles.</div></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"6 3","pages":"Article 100433"},"PeriodicalIF":13.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148862057","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}