Sustainable Energy & Fuels最新文献

{"title":"Solar-driven photocatalytic reduction of copper(ii) to copper(i) and zerovalent copper (Cu(0)): a sustainable approach for solar recovery of copper on a pilot scale†","authors":"Sapana Jadoun, Eduardo Aedo, Juan Pablo Fuentes, Lorena Cornejo Ponce and Jorge Yáñez","doi":"10.1039/D4SE01218F","DOIUrl":"https://doi.org/10.1039/D4SE01218F","url":null,"abstract":"<p >Copper stands at the forefront of materials driving the global transition to renewable energy and is a valued material for various important applications. For the first time, this paper presents an environmentally sustainable approach for recovering metallic copper through photocatalytic processes on a pilot scale, avoiding the energy-intensive conventional techniques. The study is focused on the selective photocatalytic reduction of copper(<small>II</small>) to either copper(<small>I</small>) or zerovalent copper (Cu(0)) based on the reaction conditions. This entire process does not involve strong acids or bases or any hazardous chemicals but needs only light and simple photocatalysts such as zinc oxide (ZnO) and poly(<em>o</em>-phenylenediamine)/zinc oxide (POPD/ZnO). A raceway pond reactor (RPR) was used to scale up the process in deionized water (DW), tap water (TW), and seawater (SW) using ZnO. Thermodynamic considerations were used to predict the reduction of Cu(<small>II</small>) to Cu(<small>I</small>) {Cu(<small>II</small>)/Cu(<small>I</small>) (+0.153 V)} and Cu(0){Cu(<small>II</small>)/Cu(0) (+0.337 V), Cu(<small>I</small>)/Cu(0) (+0.521 V)}. Formic acid served as a sacrificial reagent, while chloride ions modulated the reaction pathways and products at pH 6.5. The copper speciation of Cu(<small>II</small>), Cu(<small>I</small>), and Cu(0) was analyzed using X-ray diffraction (XRD), fluorescence spectroscopy (FS), laser-induced breakdown spectroscopy (LIBS), energy-dispersive X-ray spectroscopy (EDX), and flame atomic absorption spectroscopy (FAAS). The “first copper coin” was produced solely through 100% solar energy-driven photocatalysis. With an 80% recovery rate of Cu(0), our approach demonstrates a proof of concept for efficient copper recovery from wastewater, the mining industry, and e-waste. These findings offer valuable insights for further exploration of solar-driven metal recovery processes, underscoring the potential of solar energy in fostering sustainable industrial practices.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 22","pages":" 5241-5253"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced diesel from ethanol: a pathway to produce sustainable and high-quality drop-in biofuels†","authors":"Juan-Manuel Restrepo-Flórez, Javier E. Chavarrio, Emmanuel Canales, Dustin Witkowski, Srinath Subramanian, Paolo Cuello-Peñaloza, David A. Rothamer, Christos T. Maravelias and George W. Huber","doi":"10.1039/D4SE00943F","DOIUrl":"https://doi.org/10.1039/D4SE00943F","url":null,"abstract":"<p >In this work, we develop a novel technology for the transformation of ethanol into diesel <em>via</em> Guerbet coupling and etherification. Our strategy overcomes the limitations of previous studies, namely, the low yield of diesel #2, and the complex separation network required. To overcome these limitations, we rely on the use of hydrogenolysis for the removal of esters, and the implementation of butanol recycling. Herein, we present a thorough analysis of this strategy integrating the experimental evaluation of catalysts for the involved reactions, process synthesis, technoeconomic analysis, lifecycle analysis, fuel property modelling, and characterization of the fuels produced in a diesel engine. In contrast to other catalytic strategies, in this work diesel #2 constitutes the main product (92% of the produced fuels). The diesel produced has excellent cold flow properties (cloud point ∼ −28 °C) and a very high cetane number (∼94) while satisfying flash point requirements. A technoeconomic analysis leads to a minimum fuel selling price (MFSP) between $4.6–8.4 per GDE for ethanol prices between $1.5 per gal and $3.4 per gal (in 2021 dollars). Depending on the carbon intensity of the ethanol used as feedstock, and the energy consumption of the process, we found that reductions &gt;70% in GHG emissions are feasible in comparison with fossil diesel. The diesel fuel can become carbon negative if an ethanol feedstock with a sufficiently low carbon footprint is used and the ethanol upgrading biorefinery uses renewable hydrogen and produces steam using renewable natural gas.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 98-114"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solar light-assisted electrochemical CO2 reduction on a boron-doped diamond cathode†","authors":"Goki Iwai, Andrea Fiorani, Chiaki Terashima and Yasuaki Einaga","doi":"10.1039/D4SE00947A","DOIUrl":"https://doi.org/10.1039/D4SE00947A","url":null,"abstract":"<p >In this study, photoelectrochemical water oxidation with a hematite (α-Fe<small>₂</small>O<small>₃</small>) photoanode and electrochemical CO<small>₂</small> reduction with a boron-doped diamond (BDD) cathode were combined to convert CO<small>₂</small> into formic acid under 1 sun AM 1.5 simulated solar light irradiation. The faradaic efficiency of formic acid production by solar light-assisted CO<small>₂</small> reduction reached 62% and the electrical-to-chemical energy conversion efficiency was 46%. The photo-assisted electrolysis efficiency reached 0.37%.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 22","pages":" 5271-5275"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel, facile, and scalable synthesis of magnesium based adsorbents via the freeze-drying technique for CO2 capture†","authors":"Ashutosh Agarwal, Hashan Nuwantha Thenuwara and Ping Wu","doi":"10.1039/D4SE00802B","DOIUrl":"https://doi.org/10.1039/D4SE00802B","url":null,"abstract":"<p >In this study, MgO/Mg(OH)<small>₂</small> based adsorbents were prepared <em>via</em> freeze-drying and electrospinning techniques, and their CO<small>₂</small> adsorption capacities were investigated. The synthesized adsorbents were characterized by XRD, N<small>₂</small>-Ads–Des, FESEM, XPS, and CO<small>₂</small>-TPD, while their CO<small>₂</small> capture efficiency and mechanism were evaluated by TGA and FTIR spectroscopy, respectively. The adsorbent prepared <em>via</em> freeze-drying displayed nearly 6.2 wt% CO<small>₂</small> adsorption at room temperature compared to only 5.4 wt% by the adsorbent prepared <em>via</em> electrospinning. This adsorbent's superior CO<small>₂</small> capture capacity was attributed to the high basic strength of the active sites and the presence of a substantial amount of surface oxygen vacancies/defects. The adsorbent prepared <em>via</em> freeze-drying exhibited abundant surface basic sites, which led to enhanced CO<small>₂</small> molecule interaction with the O<small>²⁻</small> (strong sites), Mg–O pairs (medium sites), and OH group (weak sites) forming firmly fixed unidentate/monodentate, bidentate chelate and bidentate bridged carbonates, respectively. Although both physical and chemical adsorption coexisted in the process, the CO<small>₂</small> adsorption was mainly presided over by the chemisorption sites. The high surface basicity of the adsorbents dominated BET surface area in governing the CO<small>₂</small> capture capacity. For the first time in this research, the freeze-drying technique was applied to enlighten the facile, sustainable, and scalable synthesis of magnesium-based adsorbents for efficient CO<small>₂</small> capture at room temperature.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 21","pages":" 5041-5049"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heterobimetallic Ta–Nb MOF offering moderate Lewis/Brønsted acidity expedites glucose isomerization to fructose under microwave conditions†","authors":"Sangeeta Mahala, Bhawana Devi, Meera Cheviri, Senthil Murugan Arumugam, Balamurugan Arumugam, Lakshmanan Potturaja, Vishnu Bakthavachalam, Joy K. Roy and Sasikumar Elumalai","doi":"10.1039/D4SE01331J","DOIUrl":"https://doi.org/10.1039/D4SE01331J","url":null,"abstract":"<p >Fructose is considered a key intermediate in the preparation of green energy chemicals, especially 5-hydroxymethylfurfural. Herein, we report the highest fructose production using glucose over a heterobimetallic metal–organic framework (MOF) catalyst. The catalyst was designed by employing tantalum and niobium species as combinatorial metal nodes that can offer favorable Lewis acid centers for glucose isomerization. To bridge the metal nodes, we introduced SO<small>₃</small>H groups by employing a conventional sulfuric acid treatment. It can also improve the catalytic activity through modulation of the Lewis/Brønsted acidic density and influence the catalyst's intrinsic characteristics that can be beneficial for the reaction. The Nb@S-Ta MOF catalyst comprising Ta, Nb and sulfur (S) species exhibited favorable microporous and acidic characteristics, and it afforded a maximum fructose yield (40%) and selectivity (73%) using glucose under microwave conditions within 7 min at 100 °C in a water medium. The conversion was determined to follow first-order kinetics (<em>k</em><small>_G</small> = 3.82 × 10<small>⁻⁵</small> s<small>⁻¹</small>) and was temperature-dependent (<em>E</em><small>_a</small> = 39.99 kJ mol<small>⁻¹</small>). Furthermore, theoretical DFT modeling verified the favorable interaction between glucose and metal nodes towards isomerization (as sulfur bridges both Ta and Nb), with a binding energy <em>E</em><small>_B</small> of −3.95 eV for Nb@S-Ta MOF + glucose. However, the catalyst exhibited a less fair durability for recycling, which was caused by extended leaching of Ta (up to 24% after the 4th cycle) and acidic centre's deactivation through possible humin deposition.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 23","pages":" 5437-5448"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving heterologous expression of laccase by Pichia pastoris via vanillin-induced stress response and its application for removing inhibitors of lignocellulose hydrolysate†","authors":"Nan Liu, Bo Li and Xuebing Zhao","doi":"10.1039/D4SE00988F","DOIUrl":"https://doi.org/10.1039/D4SE00988F","url":null,"abstract":"<p >A novel strategy to increase laccase heterogeneous expression by <em>Pichia pastoris</em> was developed <em>via</em> exploring vanillin-sensitive promoters by culture of the yeast under vanillin stress followed by transcriptome analysis. Two endogenous promoters with significant response to vanillin were screened out with green fluorescent protein as a reporter protein. Subsequently, these promoters were combined with the laccase gene <em>lacc</em> 6 from <em>Pleurotus ostreatus</em> in single-promoter and double-promoter modes for enhancing laccase production. The laccase activity of the supernatant broth reached 285.7 U L<small>⁻¹</small>, being 18–60% higher than that of the control group. The enhancement of the laccase production was mainly ascribed to the increased transcription level of gene <em>lacc</em> 6 as revealed by transcriptome analysis. The recombinant yeast also could efficiently remove vanillin in the fermentation medium. Therefore, the strategy developed in this work could not only improve laccase production by <em>Pichia pastoris</em>, but also eliminate vanillin stress by the recombinant yeast. To improve the efficiency of laccase utilization and avoid the recovery and separation of laccase from the treated hydrolysate, a novel system was further developed based on the principle of a liquid flow fuel cell (LFFC), in which laccase was employed as a cathodic catalyst for the oxygen reduction reaction (ORR) with 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) as a mediator and Ag<small>₂</small>O as a anode catalyst. The LFFC system could well eliminate aldehyde stress factors thus improving the fermentability of dilute acid hydrolysate of biomass. This work thus can provide new ideas for boosting the efficiency of biomass bioconversion to produce biofuels and chemicals.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 22","pages":" 5254-5270"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal film thickness and Sn oxidation state of sputter-deposited SnO2 electron transport layers for efficient perovskite solar cells†","authors":"Woo Seok Suh, Geon Ho Park, Song Hyeun Jung, Yu-Na Lee, Hui-Seon Kim, Jia-Hong Pan and Wan In Lee","doi":"10.1039/D4SE00911H","DOIUrl":"https://doi.org/10.1039/D4SE00911H","url":null,"abstract":"<p >Ultra-thin SnO<small>₂</small> films, fabricated at low temperatures, exhibit outstanding performance as electron transport layers (ETLs) in perovskite solar cells (PSCs). To better understand the electron transport characteristics of SnO<small>₂</small> films, we investigated photovoltaic (PV) properties in relation to the film thickness and oxidation state of Sn. Herein, SnO<small>₂</small> films were prepared by a novel two-step process: metallic Sn films were deposited using a sputtering technique, followed by heat treatment at various temperatures. This method offers facile control of the Sn oxidation state and prevents pinhole formation in the resulting SnO<small>₂</small> films. We found that a SnO<small>₂</small> ETL with a thickness of 15 nm provided the optimal power conversion efficiency (PCE), while increasing the thickness beyond 20 nm significantly decreased the PCE. Heat treatment temperatures were also varied during the conversion from Sn to SnO<small>₂</small> films to control the oxidation states of Sn. An optimal PCE of 21.30% on average was achieved from the SnO<small>₂</small> films heat-treated at 420 °C, whereas annealing at 470 and 520 °C resulted in relatively lower PCEs. X-ray photoelectron spectroscopy (XPS) analysis revealed that SnO<small>₂</small> films heat-treated at 320, 370, 420, 470, and 520 °C contained 28%, 20%, 14%, 7%, and negligible levels of Sn<small>²⁺</small>, respectively. Hence, the presence of small amounts of Sn<small>²⁺</small> and oxygen vacancies in ultra-thin SnO<small>₂</small> films seems to have beneficial effects on PV performance, although they can also induce charge recombination. We also applied various photoelectrochemical analysis tools to analyze the electron transport and charge recombination properties of SnO<small>₂</small> films prepared under different conditions.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 22","pages":" 5214-5224"},"PeriodicalIF":5.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of MCM-41 mesoporous molecular sieves based on recycled glass fibers from waste fan blades","authors":"Nianxuan Wang, Song Wang, Ke Zhuang, Yun Xu, Dewang Zeng, Kai Zhou, Qian Zhang, Rui Xiao and Jingxin Xu","doi":"10.1039/D4SE01318B","DOIUrl":"https://doi.org/10.1039/D4SE01318B","url":null,"abstract":"<p >The development of clean energy leads to a significant increase in decommissioned wind turbine blades, which have become a new type of solid waste. Glass fiber, which is the main component of these blades, can be recycled through pyrolysis. However, the deficiencies in size and mechanical properties of recycled glass fibers preclude their further high-value utilization. This paper presents an innovative approach to the high-value utilization of recycled glass fibers as Si and Al sources for the synthesis of Si–Al MCM-41 mesoporous molecular sieves by the alkali fusion–hydrothermal method. The influences of the templating agent ratio, water ratio, pH, hydrothermal temperature, and hydrothermal time on the synthesis of molecular sieves during the hydrothermal synthesis process were investigated. The results show that the MCM-41 molecular sieve synthesized under optimal conditions exhibited a uniform mesoporous structure, with a specific surface area of 831 m<small>²</small> g<small>⁻¹</small> and a uniform distribution of Si and Al elements. Additionally, it exhibits an adsorption capacity of 223 mg g<small>⁻¹</small> for alkaline pollutant rhodamine B. This research provides a viable path for the high-value utilization of recycled glass fibers and establishes a novel synthesis approach for MCM-41 with excellent adsorption performance.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 23","pages":" 5484-5491"},"PeriodicalIF":5.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic pathways for efficient ammonia-to-hydrogen conversion towards a sustainable energy future","authors":"Mohammad Usman, Ahsan Ali, Zain H. Yamani and M. Nasiruzzaman Shaikh","doi":"10.1039/D4SE01029A","DOIUrl":"https://doi.org/10.1039/D4SE01029A","url":null,"abstract":"<p >A sustainable and smooth transition from fossil-fuel-based energy to a clean hydrogen economy requires affordable hydrogen storage and transportation solutions. Ammonia is a desirable hydrogen carrier option due to its high hydrogen content (17.6 wt%), being devoid of a carbon footprint, its ease of liquefaction (∼33.4 °C at 1 atm or 20 °C at 8.46 atm), and the century-old well-established infrastructure for the manufacture and transportation of NH<small>₃</small>. However, breaking the NH<small>₃</small> bonds to regain the stored hydrogen requires catalysts for dehydrogenation of NH<small>_<em>x</em></small> (<em>x</em> = 1–3) and then quick associative desorption of N from the active metal center under reaction conditions. This review highlights recent advancements in catalyst design strategies, performance, and challenges associated with understanding the intricate relationship between the catalyst structure and activity. Here, mechanisms of decomposition/oxidation of noble and transition metals are discussed, which provide a strong foundation for heterogeneous catalyst design in terms of charge transfer and the synergistic effects between active metal sites and supports. This evolves as a crucial factor for the reduction at decomposition temperatures. This review also emphasizes the recent development of homogeneous catalytic ammonia decomposition (AD)/oxidation (AO) at low temperatures (&lt;100 °C) using a series of metal (M = Cr, Mn, Fe, Ni, Cu, Mo, Os and Ru) complexes. Its molecular reaction mechanisms and pathways to develop efficient catalysts have been discussed extensively.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 23","pages":" 5329-5351"},"PeriodicalIF":5.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing lattice oxygens in a high-entropy perovskite oxide for enhanced oxygen evolution reaction †","authors":"Sujan Sen and Tapas Kumar Mandal","doi":"10.1039/D4SE01204F","DOIUrl":"https://doi.org/10.1039/D4SE01204F","url":null,"abstract":"<p >The development of highly active and stable electrocatalysts for the oxygen evolution reaction (OER) is the main challenge in water electrolysis for green hydrogen production. Although Ru-based electrocatalysts have been in use for the past few decades, their stability in the reaction medium remains a major concern. Herein, a high-entropy simple perovskite oxide Ba<small>_0.33</small>Sr<small>_0.67</small>Co<small>_0.33</small>Ti<small>_0.165</small>Ru<small>_0.165</small>Sb<small>_0.33</small>O<small>₃</small> (BSCTRS) is designed and synthesized by introducing Ru at 16.5 mol% B-site positions of Ba<small>_0.33</small>Sr<small>_0.67</small>Co<small>_0.33</small>Ti<small>_0.33</small>Sb<small>_0.33</small>O<small>₃</small> (BSCTS) to achieve enhanced lattice oxygen participation. The BSCTRS perovskite electrocatalyst exhibits an OER overpotential similar to RuO<small>₂</small> at 10 mA cm<small>⁻²</small> and a far superior OER overpotential (340 mV) compared to the benchmark RuO<small>₂</small> at 100 mA cm<small>⁻²</small>. Moreover, BSCTRS shows ∼20% lower Tafel slope and ∼120% higher TOF than Ba<small>_0.33</small>Sr<small>_0.67</small>Co<small>_0.33</small>Ti<small>_0.33</small>Sb<small>_0.33</small>O<small>₃</small>. This results in a significant enhancement of current density to 263 mA (at 1.58 V <em>vs.</em> RHE) for BSCTRS compared to only 99 mA for the parent BSCTS. The enhanced activity of the catalyst stems from optimal filling of e<small>_g</small> orbitals of the active metals and greater lattice oxygen participation. The work demonstrates the ability of high-entropy stabilized simple perovskite compositions with low concentrations of active noble metals to significantly enhance OER activity.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 129-140"},"PeriodicalIF":5.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}