Sustainable Energy & Fuels最新文献

{"title":"Coal gasification slag-based-sodium acetate trihydrate composite phase change materials for solar thermal energy storage","authors":"Yawen Zhang, Minghao Fang, Xin Li, Zongce Chai, Zijiao Guo and Xin Min","doi":"10.1039/D4SE00844H","DOIUrl":"https://doi.org/10.1039/D4SE00844H","url":null,"abstract":"<p >Sodium acetate trihydrate (SAT) is an extremely potential low-temperature phase change material (PCM) in the solar power absorption, residual heat recovery, and other fields. Using coal gasification slag as a matrix for the sorption of SAT not only effectively solves the liquid leakage problem that occurs when the material is transferred from the solid phase to the liquid phase and but also improve the photothermal performance of the PCM, which is both environmentally friendly and economically valuable. A shape-stabilized coal gasification slag/sodium acetate trihydrate composite phase change material was therefore created in this work using the vacuum impregnation process, and its characteristics were examined. It was found that CGS is chemically compatible with SAT, and a CGS loading on SAT is 67.99%. on SAT results in a CPCM with better heat stability. Furthermore, the CPCM's latent heat could reach up to 171 J g<small>⁻¹</small>, and it exhibited excellent capability for solar thermal conversion, with an photothermal conversion efficiency of 77.8%.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 2","pages":" 565-575"},"PeriodicalIF":5.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976339","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":"Construction of a cross-linked network structure for a super-stable and long-life ZnO anode†","authors":"Zibo Chen, Ziyuan Wang, Zheng Li, Hao Cheng, Yao Lu, Chao Chen, Xingyi Li, Hailin Yu, Zhongliang Tian and Ke Peng","doi":"10.1039/D4SE01288G","DOIUrl":"https://doi.org/10.1039/D4SE01288G","url":null,"abstract":"<p >For alkaline zinc secondary batteries, the hydrogen evolution corrosion and dendrite growth on the zinc anode result in its short cycle life and low capacity. Currently, the occurrence of side reactions is inhibited by anode alloyage, electrode or electrolyte additives, or altering the structural design of the electrode. Among them, altering the structural design can effectively enhance the cycling performance. Furthermore, the 3D interconnected network structure can realize a uniform electric field and ion distribution to improve the electrode reaction behavior. Inspired by this, a ZnO anode with a 3D cross-linked network structure was constructed using CNFs as the 3D skeleton. By regulating the ZnO content and the ratio of CNFs/CB in the ZnO@CNFs/CB materials, the effect of the component content on the performance of the ZnO anodes was analyzed. With the increase in ZnO contents and CNFs/CN ratios, the reversibility, hydrogenation inhibition effect, cycling performance and rate performance of the ZnO anodes first showed an increasing trend, followed by a decreasing trend. When the theoretical mass ratio (ZnO : CNFs : CB) between the components in the ZnO@CNFs/CB material was 8 : 1 : 1, it exhibited a high hydrogenation inhibition effect and reversibility. When the prepared materials were used as the ZnO anode material of the zinc–nickel battery, the specific discharge capacity after 600 cycles at 1C rate was 566.90 mA h g<small>⁻¹</small>, the coulombic efficiency was 86.02%, and the capacity retention rate was 90.17%. The average specific discharge capacity was 602.66 mA h g<small>⁻¹</small>.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 2","pages":" 490-500"},"PeriodicalIF":5.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976311","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":"Efficient cascade conversion of glucose to levulinic acid using a dual-functional UiO-66 catalyst†","authors":"Sininat Boonmark, Panyapat Ponchai, Kanyaporn Adpakpang, Taya Saothayanun, Yollada Inchongkol, Natchaya Phongsuk and Sareeya Bureekaew","doi":"10.1039/D4SE01352B","DOIUrl":"https://doi.org/10.1039/D4SE01352B","url":null,"abstract":"<p >The catalytic properties of UiO-66 were enhanced through a post-synthetic defect engineering method. This involved facile treatment of the material with aqueous HCl to induce defects that generated free carboxylic acid (–COOH) groups. Consequently, the modified UiO-66 framework incorporated both Brønsted acidic –COOH groups and Lewis acidic sites, which originate from inherent linker-missing defects. These dual-functional acidic sites, combined with the high structural stability of UiO-66, enable it to act as an efficient heterogeneous catalyst for one-pot, multistep reactions. Specifically, the catalyst facilitates the conversion of glucose to levulinic acid (LEV) in the presence of sodium chloride (NaCl) as a promoter under hydrothermal conditions. Under optimized conditions (190 °C for 6 h), the catalytic system achieves a remarkable conversion of glucose (&gt;99%), with an impressive 83% yield of LEV. The defect-engineered UiO-66 catalyst shows exceptional potential as a candidate for sugar conversion to valuable bio-based chemicals.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 2","pages":" 596-605"},"PeriodicalIF":5.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976342","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":"Interfacial engineering of a bifunctional electrocatalyst with outstanding catalytic performance, high intrinsic activity and solar-to-hydrogen conversion efficiency†","authors":"Muthukumaran Sangamithirai, Murugan Vijayarangan, Murugan Muthamildevi, Venkatachalam Ashok and Jayaraman Jayabharathi","doi":"10.1039/D4SE01320D","DOIUrl":"https://doi.org/10.1039/D4SE01320D","url":null,"abstract":"<p >Carbides are commonly regarded as efficient hydrogen evolution reaction (HER) catalysts, but their poor oxygen evolution reaction (OER) catalytic activities seriously limit their practical application in overall water splitting. Herein, embedded nanosheets and plates of cobalt oxy carbide (Co–O–C/CPs) were successfully synthesized as an efficient bifunctional electrocatalyst using a solvent-free combustion process. To contribute to the clarification of catalytic particle composition during electrochemical reactions, we thoroughly characterized the Co–O–C/CPs using HR-TEM, which revealed that the filled nanoplates, with a cobalt oxide shell and cobalt carbide core, were wrapped with carbon. During electrochemical reactions, the filled nanoplates changed to an amorphous state owing to the decomposition of the crystalline material. After amorphization, the Co–O–C/CPs maintained the shape of the parent compound and exhibited a higher electrochemically active surface area (ECSA) and thereby demonstrated enhanced HER (115 mV) and OER (240 mV) performances at 10 mA cm<small>⁻²</small>. When applying the Co–O–C/CPs as both the cathode and anode, a lower cell voltage of 1.60 V was required at 10 mA cm<small>⁻²</small> than that for the benchmark catalyst IrO<small>₂</small>/Pt/C/NF (1.63 V) with great stability in alkaline solution. This work provides a feasible strategy to fabricate cobalt oxy carbides and explores their possibility as bifunctional catalysts for water splitting.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 256-268"},"PeriodicalIF":5.0,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844660","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":"Fluorine-rich Schiff base ligand derived Fe/N–C–F and Co/N–C–F catalysts for the oxygen reduction reaction: synthesis, experimental validation, and DFT insights†","authors":"Sumanta Kumar Das, Shaik Gouse Peera, Aiswarya Kesh, Prabakaran Varathan and Akhila Kumar Sahu","doi":"10.1039/D4SE01370K","DOIUrl":"https://doi.org/10.1039/D4SE01370K","url":null,"abstract":"<p >The development of cost effective and durable catalysts for the electrochemical reduction of O<small>₂</small> to H<small>₂</small>O is paramount for energy conversion devices such as fuel cells and Zn–air batteries. In this research work, we have developed a unique strategy for the synthesis of active and stable electrocatalysts comprising Fe and Co transition metals in combination with N and F dopants in the carbon matrix. This research also introduces an innovative approach for synthesizing Fe/N–C–F and Co/N–C–F electrocatalysts utilizing organic Schiff base ligands and their coordination complexes with Fe and Co transition metals. The synthesized Fe/N–C–F and Co/N–C–F catalysts have been systematically evaluated for their physicochemical properties and electronic states by using HR-TEM, XPS analysis and electrochemical characterization in 0.1 M aqueous KOH electrolyte. The optimized Fe/N–C–F catalyst shows a half-wave potential of 0.88 V <em>vs.</em> RHE and superior durability evaluated up to 20 000 cycles with only a marginal potential drop of ∼27 mV in its <em>E</em><small>_1/2</small> potential value compared to the Pt/C catalyst. Furthermore, the reaction pathway and Gibbs free energy of the ORR intermediates in Fe/N–C–F and Co/N–C–F catalysts have been evaluated by DFT analysis.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 231-246"},"PeriodicalIF":5.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844649","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":"A biomimetic ant silk fiber-based triboelectric nanogenerator: toward advanced tactile sensing technology†","authors":"Rumana Farheen Sagade Muktar Ahmed, Mizba Tazleem Sagade Mokthar Ahamed, Sangamesha Madanahalli Ankanathappa and Krishnaveni Sannathammegowda","doi":"10.1039/D4SE01591F","DOIUrl":"https://doi.org/10.1039/D4SE01591F","url":null,"abstract":"<p >Integrating bio-inspired materials into TENGs marks a significant step toward sustainable and eco-friendly energy harvesting systems, with promising applications in robotics, wearable electronics, and human–machine interfaces. In the present study, a biomimetic triboelectric nanogenerator (TENG) is fabricated from a rare silk fiber mat (SFM). The robust properties of SFM are attributed to proteins secreted by weaver ant larvae, which are rich in amine and hydroxyl groups. The chemical resistance and structural integrity of the SFM are confirmed using characterization techniques such as scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. SFM is employed as the tribopositive material and is paired with polyurethane as the tribonegative material, which efficiently generates an output voltage of 160.47 V, current of 33.58 μA, and peak power of 15.15 mW at a load resistance of 30 MΩ. The SFM-TENG is capable of powering 80 green LEDs, charging capacitors, has wind sensitivity, and functions as a self-powered touch sensor, generating distinguishable electrical signals in response to various materials and individual touches. Thus the current work expands the scope of biomaterials, offering practical advancements in developing energy-harvesting devices for self-powered tactile sensors.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 2","pages":" 585-595"},"PeriodicalIF":5.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976341","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":"Electrocatalytic conversion of biomass-derived oxygenated aromatics to cycloalkanes†","authors":"Meheryar R. Kasad, James E. Jackson and Christopher M. Saffron","doi":"10.1039/D4SE01149J","DOIUrl":"https://doi.org/10.1039/D4SE01149J","url":null,"abstract":"<p >Electrocatalytic hydrotreatment (ECH) was explored as a mild technique to convert oxygenated aromatics, present in oils derived from the deconstruction of lignocellulosic biomass or lignin, into cycloalkanes. Producing cycloalkanes in a one-pot system, as envisioned in the present study, requires that both hydrodeoxygenation and aromatic ring saturation occur electrocatalytically. Thus, an activated carbon cloth-supported ruthenium and platinum (RuPt/ACC) electrocatalyst was synthesized and used to conduct model compound ECH studies to determine substrate conversion, product yields, and faradaic efficiency, enabling the derisking of the electrocatalytic process. The effects of electrocatalyst composition and aromatic ring substituents on cycloalkane yield were examined. Furthermore, ECH of side products and probable intermediates was conducted to map reaction sequences and pathways. Finally, ECH of a 4-O-5 dimer model compound was conducted to study the electrocatalytic cleavage of recalcitrant interunit linkages in lignin.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 217-230"},"PeriodicalIF":5.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01149j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"YFO photocathode fabricated via spray pyrolysis for unassisted solar water splitting for generation of hydrogen fuel†","authors":"Bandar Y. Alfaifi, Hameed Ullah, Xin Jiang and Asif Ali Tahir","doi":"10.1039/D4SE01276C","DOIUrl":"https://doi.org/10.1039/D4SE01276C","url":null,"abstract":"<p >Efficient solar to fuel conversion technology is highly desirable to meet future global renewable energy demands as conventional energy resources are environmentally irresponsible and depleting rapidly. Photoelectrochemical (PEC) water splitting without the use of any external potential bias and/or assistance to produce hydrogen (a clean and renewable fuel) is a technology having the potential to fulfil this desire. However, the main bottleneck is the unavailability of cost-effective, efficient and stable photoelectrodes, which are used to conduct water splitting using light photons. YFeO<small>₃</small> (YFO) thin films with a small energy band gap (<em>E</em><small>_g</small>), suitable band positions straddling water redox potential and high stability were fabricated using a simple, cost-effective and scalable synthesis technique <em>i.e.</em>, spray pyrolysis. The optimum YFO film was applied, for the first time to the best of our knowledge, for generation of hydrogen fuel through water splitting without applying any external potential bias and/or assistance. Orthorhombic YFO (o-YFO) showed a maximum photocurrent of ∼0.65 mA cm<small>⁻²</small> at 0.46 V <em>vs.</em> RHE, faradaic efficiency of ∼70%, and excellent stability spanning over 6 hours. UV-visible and electrochemical impedance spectroscopy (EIS) revealed the p-type characteristic, narrow <em>E</em><small>_g</small> of 2.45 eV and suitable band positions, which encompassed the redox potential of water, of the o-YFO film. The o-YFO film generated 0.41 µmol cm<small>⁻²</small> of hydrogen over 6 hours without any assistance in a spontaneous hydrogen evolution reaction (HER). In a subsequent cycle, it generated 0.35 µmol cm<small>⁻²</small> of hydrogen, showing its potential as a reusable photoelectrode in the HER. Post HER characterizations did not show any visible/significant changes in the phase and morphology of the o-YFO film, indicating its stability under the applied HER conditions.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 208-216"},"PeriodicalIF":5.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01276c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding charge separation in CdS/Ce-UiO66-NH2 heterojunctions for enhanced photocatalytic hydrogen evolution†‡","authors":"Wenqing Hou, Sam A. J. Hillman, Soranyel Gonzalez-Carrero, Shilin Yao, Huangtianzhi Zhu and James R. Durrant","doi":"10.1039/D4SE01473A","DOIUrl":"https://doi.org/10.1039/D4SE01473A","url":null,"abstract":"<p >UiO metal–organic frameworks (MOFs) are regarded as promising photocatalysts due to their unique stability and band designability. We recently demonstrated that the cerium-based Ce-UiO-NH<small>₂</small> exhibited an enhanced hydrogen evolution relative to zirconium (Zr)-UiOs, when loaded with cadmium sulfide (CdS). However, the underlying charge separation dynamics of this system is unclear. In this work, we optimised the CdS loading and used transient absorption and electrochemical spectroscopy to investigate the charge separation dynamics and energetics in the CdS/Ce-UiO-NH<small>₂</small> heterojunction. The optimised heterojunction showed improved stability and achieved an external quantum efficiency (EQE) of 2.2% under 420 nm LED illumination whilst using methanol as a sacrificial agent. The heterojunction facilitates charge separation, generating long-lived (ms) holes on Ce-UiO-NH<small>₂</small> and electrons on the CdS. In contrast with electron-accepting Zr-UiOs, this study reveals a reversed charge separation direction in CdS/UiO heterojunctions with Ce-UiO-NH<small>₂</small> acting as the electron donor.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 2","pages":" 576-584"},"PeriodicalIF":5.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/se/d4se01473a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review of water management in proton exchange membrane fuel cell systems","authors":"Peihan Qi, Zhenxing Wu, Jiegang Mou, Denghao Wu, Yunqing Gu, Maosen Xu, Zekai Li and Yang Luo","doi":"10.1039/D4SE01020E","DOIUrl":"https://doi.org/10.1039/D4SE01020E","url":null,"abstract":"<p >Water management has been an unavoidable problem for proton exchange membrane fuel cells (PEMFCs), and effective water management measures can improve the performance and extend the lifespan of the PEMFC. The water management state of the PEMFC system is influenced by various operating conditions, and these operating conditions are adjusted using external devices. To understand how to achieve an optimal water management state in the PEMFC system, this review summarizes the main influencing factors in water management, including temperature, humidity and pressure. Then, a generalized overview of the key devices for controlling the above factors in water management is provided, including gas supply devices and humidifiers. Afterwards, the control methods of the above devices are summarized, including conventional control methods and neural network control methods. At last, the whole paper is summarized and appropriate recommendations are given for the study of water management, the direction of optimization of the device and the improvement of control methods in the future.</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":" 1","pages":" 72-97"},"PeriodicalIF":5.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844665","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}