Energy & Fuels最新文献

{"title":"Effects of Salinity on the Macroscopic and Microscopic Evolution Characteristics of Methane Hydrate Films on Bubble Surfaces","authors":"Zhenwu Zhou,&nbsp;Jingchun Feng*,&nbsp;Yan Xie,&nbsp;Bin Wang,&nbsp;Yi Wang,&nbsp;Si Zhang and Zhifeng Yang,&nbsp;","doi":"10.1021/acs.energyfuels.4c01958","DOIUrl":"10.1021/acs.energyfuels.4c01958","url":null,"abstract":"<p >The formation and evolution characteristics of hydrate films on methane bubble surfaces play a crucial role in influencing the solidification and resequestration of methane in deep-sea methane seepage environments, which is pivotal in affecting whether methane from seabed seepage can reach the shallow layers of the ocean. Differences in seawater and pore water salinity among different marine regions are the key factors influencing hydrate formation. However, the effects and mechanisms of salinity on macroscopic and microscopic evolution characteristics of methane hydrate films on bubble surfaces remain unclear. In this study, the formation and evolution characteristics of the hydrate film on the surface of methane bubbles were investigated at the macroscopic and molecular scales using a combination of Raman spectroscopy and microscopy. It was found that although the driving force for methane hydrate formation was consistent in all systems, the lateral growth rate of the hydrate film on the bubble surface slowed with increasing salinity, and the initial hydrate film gradually became rougher with enlarged hydrate particles. The lateral growth rate of the methane hydrate film in the 10 wt % salinity system was 50 times slower than that in the pure water system. Additionally, the salinity significantly affected the thickening process of the methane hydrate films. The obvious difference in pressure inside and outside the bubbles under different salinity conditions resulted in overall gas consumption phenomena in the system different from those of hydrate formation on the bubble surface. Mechanism analysis suggests that the observed phenomena primarily stem from the decrease in efficiency of methane and water molecule transfer caused by increased salinity as well as the formation of a porous and loose hydrate film structure. The results of this work can provide valuable insights into CH₄ capture and sequestration in deep-sea cold seeps and offer essential fundamentals for estimating hydrate resources in the marine environment.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perspective on Recent Advances of Functional Electrolytes for Lithium Metal Batteries","authors":"Lishun Bai,&nbsp;Benqiang Chen,&nbsp;Danni Zhang,&nbsp;Yan Xu,&nbsp;Shibin Zhang,&nbsp;Ying He,&nbsp;Feiyan Yu,&nbsp;Kuhang Liu,&nbsp;Dongming Xu and Zhi Chang*,&nbsp;","doi":"10.1021/acs.energyfuels.4c01525","DOIUrl":"10.1021/acs.energyfuels.4c01525","url":null,"abstract":"<p >Lithium metal batteries (LMBs) have attracted extensive research interest because of their unparalleled electrochemical performances. Electrolytes, a critical component of batteries, play a pivotal role in promoting ionic and charge transport and forming a solid–electrolyte interphase (SEI). The solvation chemistry of electrolytes is closely related to the performance of LMBs and can be effectively manipulated by adjusting their components and structures. However, electrolytes with undesirable electrochemical properties can lead to fast capacity decay and even pose severe safety hazards in LMBs. Therefore, the development of high-performance electrolytes is critical for the advancement of LMBs. Typical electrolyte strategies for LMBs include high-concentration electrolytes (HCEs) and localized high-concentration electrolytes (LHCEs). In this review, we primarily focus on recent advancements in functional electrolyte design strategies. We provide a brief overview of the characteristics and commonalities of different electrolyte formulations. Additionally, electrolytes prepared on the basis of novel solvents are also summarized, which is a key method of achieving high performance for LMBs. Finally, inspiring methods to further optimize electrolyte compositions and structures for practical LMBs are also proposed.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electronic Reallocation in MOF-Derived Co4N–Ni3N Heterostructure Renders Chlorine-Free Overall Seawater Splitting under Large Current Density","authors":"Rajdeep Kaur,&nbsp;Ashish Gaur,&nbsp; Aashi,&nbsp;Vikas Pundir,&nbsp;Jatin Sharma,&nbsp;Chandan Bera and Vivek Bagchi*,&nbsp;","doi":"10.1021/acs.energyfuels.4c01543","DOIUrl":"10.1021/acs.energyfuels.4c01543","url":null,"abstract":"<p >As a viable method, electrocatalytic water splitting for hydrogen production, particularly in seawater, appears to be an appealing technique. Herein, the Co₄N–Ni₃N heterostructure was derived by controlled nitridation of a bimetallic NiCo-based metal–organic framework. The Co₄N–Ni₃N heterostructure shows a very low overpotential of 330 and 319 mV at a very high value of 500 mA cm^–2 in alkaline freshwater for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively, and can perform at a very large current density of nearly 1.2 A cm^–2 for the OER and 1 A cm^–2 for the HER. Since the overpotential is less than the limit of the chlorine evolution reaction, it provides a potential platform for chlorine-free OER for seawater electrolysis. The Co₄N–Ni₃N catalyst exhibits exceptional durability, maintaining stability for over 230 h at 500 mA cm^–2 in the OER and 100 h at 500 mA cm^–2 in the HER without experiencing significant loss in the activity. For total water decomposition, Co₄N–Ni₃N shows a cell potential of 1.97 and 2.19 V at 500 mA cm^–2 in 1 M KOH and simulated seawater, respectively. This enhanced heterostructure activity is due to a synergistic impact caused by the in situ development of the interface between Co₄N and Ni₃N phases during the controlled nitridation process.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO3−δ for “Low-Temperature” Chemical Looping Air Separation","authors":"Hilal Bektas,&nbsp;Runxia Cai,&nbsp;Leo Brody and Fanxing Li*,&nbsp;","doi":"10.1021/acs.energyfuels.4c00859","DOIUrl":"10.1021/acs.energyfuels.4c00859","url":null,"abstract":"<p >The increasing demand for high-purity oxygen has prompted interest in chemical looping air separation (CLAS), a promising approach to reduce cost and energy consumption. The current study presents a structural and thermodynamic analysis of Sr_0.75Ba_0.25FeO_3−δ (SBF628), Sr_0.75Ba_0.25Fe_0.875Mg_0.125O_3−δ (SBFM6271), and Sr_0.25Ba_0.75FeO_3−δ (SBF268) for CLAS applications. Our results confirm that through partial substitution of A- and B-site cations, we can tailor the thermochemical properties of SrFeO_3−δ under practical operating conditions, e.g. 400–700 °C and 0.2–0.01 atm O₂. Based on X-ray diffraction (XRD) and Rietveld refinement, 25% Ba can be fully substituted into a Sr_<i>x</i>Ba_1–<i>x</i>FeO_3−δ structure (SBF628), whereas SBF268 and SBFM6271 form minor secondary phases. An increased Ba:Sr ratio in the A-site favors facile oxygen exchange by reducing partial molar enthalpy and improving redox capacity at low temperatures (400–500 °C) while leading to an increase in Fe–O bond length in the B-site. Our findings support that the Fe–O bond distance can be a useful descriptor in the optimization of redox performance in SrFeO_3−δ (SF) based oxygen carrier candidates for CLAS. All the substituted candidates exhibit superior redox performance to unsubstituted SF at temperatures below 600 °C. SBF628 achieves the redox (oxygen storage) capacity of 1.24 wt % under a combined temperature (400–600 °C) and pressure swing (0.2–0.01 atm O₂) mode. The introduction of 12.5% Mg in the B-site improves the oxidation kinetics, but it does not have a substantial impact on the oxygen storage capacity. SBFM6271 and SBF628 exhibited excellent recyclability and robustness while a minimal decrease (3%, on a relative basis) in the capacity of SBF268 was observed during 100 redox cycles under pressure swing between 0.2 and 0.01 atm O₂ at 600 °C.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid On-Column Esterification and Separation of Carboxylic Acids in Petroleum Fractions","authors":"Shuofan Li,&nbsp;Haojie Hu,&nbsp;Jianxun Wu,&nbsp;Fange Kong,&nbsp;Jing Wang and Quan Shi*,&nbsp;","doi":"10.1021/acs.energyfuels.4c01119","DOIUrl":"10.1021/acs.energyfuels.4c01119","url":null,"abstract":"<p >Carboxylic acids are frequently encountered in sediments and petroleum, and their individual molecular structures are of great significance for the study of geochemical significance. However, analyzing carboxylic acid individual compounds within complex organic mixtures, like petroleum, poses a challenge for gas chromatography–mass spectrometry (GC–MS) as a result of their high polarity and boiling points as well as potential interference from other matrix compounds. This study proposes a novel approach for separation and characterization of carboxylic acids in petroleum samples, employing the esterification reaction on a solid-phase extraction column packed with silver-ion silica gel. Carboxylic acids are promptly converted into the corresponding methyl esters during elution, and these resulting nonpolar methyl esters were subsequently subjected to GC–MS analysis. The conversion ratios of on-column esterification and the corresponding reaction conditions were validated using carboxylic acid model compounds. The on-column esterification process enables the rapid and selective esterification of carboxylic acid compounds in crude oil, facilitating their separation from the petroleum matrix. This method has been demonstrated to be highly valuable for elucidating the molecular structures of carboxylic acid isomers in petroleum. In addition, the method is both flexible and time-efficient, demonstrating its potential for analyzing the molecular structures of carboxylic acid markers in the fields of geochemistry and petrochemistry.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagenetic Controls on Tight Sandstone Reservoir Quality: A Case Study from the Huaqing Oilfield, Ordos Basin","authors":"Jipeng Liu,&nbsp;David Misch,&nbsp;Zhenxue Jiang*,&nbsp;Hanmin Xiao,&nbsp;Xianglu Tang,&nbsp;Mingshuai Xu,&nbsp;Qingqing Fan and Dongqi Li,&nbsp;","doi":"10.1021/acs.energyfuels.4c01960","DOIUrl":"10.1021/acs.energyfuels.4c01960","url":null,"abstract":"<p >Tight sandstone oil reservoirs in the Yanchang Formation of the Ordos Basin have great resource potential. Reservoir quality plays a crucial role in the aggregation and development of tight sandstone oil. The quality of tight sandstone reservoirs is indirectly controlled by diagenesis, which is directly manifested in the differences in pore structure characteristics. At present, there are many studies on the relationship between reservoir quality and diagenesis in the tight sandstone reservoirs of the Yanchang Formation, but there is still no unified method for classifying the diagenetic facies types and characterizing the full-scale pore structure. In this study, based on the large field of view cast thin section analysis and X-ray diffraction (XRD) technology, the clustering analysis method was utilized to classify the diagenetic facie types. Combining low-temperature nitrogen adsorption (LTNA), high-pressure mercury intrusion (HPMI), and constant-velocity mercury intrusion (CMI), a new method based on a weighted approach to characterize the full pore size of tight sandstone reservoirs was proposed. Four types of diagenetic facies are mainly developed in the study area: felsic weakly compacted diagenetic facies (A), dissolution diagenetic facies (B), carbonate cemented diagenetic facies (C), and tightly compacted diagenetic facies (D). The full pore size distribution curve of diagenetic facies B shows a multipeak distribution, in which the peak with the largest value is located from 0.4 to 0.8 μm. The full pore size distribution curves of diagenetic facies A, C, and D all show a single-peak pattern, with peak positions corresponding to decreasing pore diameters from 0.1 to 0.2 μm, 0.07 to 0.1 μm, and 0.007 to 0.13 μm, respectively. The presence of brittle minerals, such as quartz, and the occurrence of dissolution favor reservoir quality. Cementation destroys reservoir storage space, but this occurs when the cement content exceeds a certain threshold. Micropores and mesopores are more clearly related to diagenesis than nanopores. Diagenesis affects reservoir quality by controlling the development of micropores and mesopores. Finally, the correlation between diagenetic facies and the wireline logs was established, and it is clear that the development of diagenetic facies A and diagenetic facies B is associated with better reservoir quality. The study provides insights into how the diagenetic facies of tight sandstone reservoirs are correlated with reservoir quality and pore structures. It has reference significance for sweet spot evaluation in tight sandstone reservoirs.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coherent Design of CoAl Layered Double Hydroxide-Derived Co3O4 Cubes as a Competent Electrocatalyst for Water Splitting and Urea Electrolysis","authors":"Rajathsing Kalusulingam,&nbsp;Mariyamuthu Mariyaselvakumar,&nbsp;Selvam Mathi,&nbsp;Soslan A. Khubezhov,&nbsp;Ilya V. Pankov,&nbsp;Kannan Srinivasan*,&nbsp;Churchil Angel Antonyraj* and Tatiana N. Myasoedova*,&nbsp;","doi":"10.1021/acs.energyfuels.4c00976","DOIUrl":"10.1021/acs.energyfuels.4c00976","url":null,"abstract":"<p >Here, we studied the electrocatalytic activity of a CoAl-LDH-derived Co₃O₄ cube, which has an amplified electrochemical surface area and conductivity, which in turn escalates the electrochemical performance. The cubic Co₃O₄ promotes OER, HER, and UOR with significantly lower potentials of 1.51, 0.192, and 1.36 V at a 10 mA cm^–2 current density; this electrocatalytic performance addresses the kinetic challenges associated with electrolytic reactions in an effective manner. Moreover, we assembled a full-cell water electrolyzer employing the Co₃O₄ cube//Co₃O₄ cube as both the cathode and anode, achieving various current densities of 10, 20, 50, and 100 mA cm^–2 with corresponding cell voltages of 1.49, 1.72, 1.83, and 1.95 V. In addition, synthesized Co₃O₄ cubes demonstrate excellent urea electrolytic performance, maintaining stable voltages of 1.40, 1.47, 1.57, and 1.70 V under similar current densities. Notably, the Co₃O₄ cube electrocatalyst exhibited sustained stability over 24 h, maintaining a voltage of 1.72 V in alkaline 1.0 M KOH solution and 1.47 V in alkaline 1.0 M KOH + 0.5 M urea solution, showing a reduction of 275 mV compared to the overall water electrolyzer at a current density of 20 mA cm^–2.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of Thermocatalysts in Solid Oxide Fuel Cells (SOFCs) Fed with Hydrogen-Rich Fuels: A Mini-Review","authors":"Zhishan Li,&nbsp;Meiting Guo,&nbsp;Zhongwei Yue and San Ping Jiang*,&nbsp;","doi":"10.1021/acs.energyfuels.4c01609","DOIUrl":"10.1021/acs.energyfuels.4c01609","url":null,"abstract":"<p >Solid oxide fuel cells (SOFCs) are considered one of the most efficient energy conversion technologies. One of the distinct advantages of SOFCs is that in addition to pure hydrogen, hydrogen-rich fuels such as hydrocarbons, hydronitrogens, and biomass can be fed to SOFCs to generate electrical energy. However, the state-of-the-art nickel-based cermet anodes suffer from carbon deposition or nitridation in hydrogen-rich fuels. To solve these problems, thermocatalysts are widely applied in hydrogen-rich fueled SOFCs. The integration of thermocatalysts and SOFCs plays a critical role in electrochemical performance and stability. In this report, the integration of thermocatalysts in hydrogen-rich fuel based SOFCs is classified into four configurations, and the utilization and effect of thermocatalysts are reviewed. The working principles of thermocatalysts are introduced, and the recent progress of thermocatalysts for hydrogen-rich fueled SOFCs are discussed. The aim of this mini-review is to provide helpful directions for the development of high-performance and durable SOFCs fed with hydrogen-rich fuels.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of Leaky Deep Saline Aquifer for Storing sc-CO2","authors":"Tummuri Naga Venkata Pavan*,&nbsp;Srinivasa Reddy Devarapu* and Suresh Kumar Govindarajan,&nbsp;","doi":"10.1021/acs.energyfuels.4c01599","DOIUrl":"10.1021/acs.energyfuels.4c01599","url":null,"abstract":"<p >The increase in the emissions of greenhouse gases is driving the rapid climate change in the earth’s environment. Carbon dioxide is one of the most abundant greenhouse gases emitted into the atmosphere. Capturing CO₂ gas is essential to limit gas emissions released into the surrounding environment. CO₂ injection into deep geological formations is a popular method of storing CO₂. Among these formations, deep saline aquifers are known to possess higher compatibility for the better storage of CO₂. However, the leakage pathways formed due to poorly sealed abandonment wells, faults, and fracture networks in the caprock reduce the CO₂ storage efficiency. Determining the leakage rates is essential for understanding the storage efficiency of the aquifer. Therefore, a numerical model is developed to evaluate the leakage rates economically. The present study considers a domain consisting of two interconnected aquifers with a leakage in the caprock to understand the influence of various characteristics of the leakage path and aquifer on the CO₂ leakage rates. The normalized leakage rate is also evaluated with time during CO₂ gas injection. The results from the developed model depicted the variations in leakage path distance, thickness of the leakage path, permeability, and depth of the aquifer to affect the CO₂ migration in the bottom aquifer and storage efficiency. The evaluated normalized leakage rates varied from 0.2 to 0.175 with a change in leakage distance, and these rates significantly increased from 0.04 to 0.38 with an increase in leakage thickness. In addition, the normalized leakage rate is changed from 0.22 to 0.0004 with a decrease in permeability in orders from 10^–13 to 10^–15 m² and becomes uniform at 0.2 with injection time for depth variation. In addition, the porosity of the leakage path has a negligible impact on the leakage rates and gas migration into the upper aquifer. Overall, the study ascertained the influence of the leakage path on the efficacy of the aquifer for storing CO₂.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141369487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Built-in Electric Field of CoMoO4/CoP Heterostructure for Efficient Alkaline Seawater Hydrogen Evolution","authors":"Xia Yu,&nbsp;Peng Xu,&nbsp;Qiong Chen,&nbsp;Ningyan Cheng,&nbsp;Siwei Luo,&nbsp;Lei Zhang,&nbsp;Binwei Zhang* and Yundan Liu*,&nbsp;","doi":"10.1021/acs.energyfuels.4c01477","DOIUrl":"10.1021/acs.energyfuels.4c01477","url":null,"abstract":"<p >Direct electrolysis of seawater holds significant potential for practical hydrogen energy production. However, its effective application is hindered by the unavoidable corrosion and performance decay of catalysts during their operation in seawater with high concentrations of chloride ions. Economic non-noble catalysts with high efficiency and corrosion resistance are thus highly in demand. Herein, we successfully synthesized a heterogeneous structure of CoMoO₄ and CoP on carbon cloth (CC) (CoMoO₄/CoP/CC), demonstrating high and stable hydrogen evolution reaction (HER) activity in seawater. The staggered interconnected nanosheet structure of CoMoO₄/CoP/CC will create a built-in electric field and thus facilitates interfacial electron transfer. The optimal electrocatalyst CoMoO₄/CoP-10/CC demonstrates remarkable performance, requiring only 217.9 mV overpotentials to reach 100 mA·cm^–2 in alkaline seawater. Additionally, it shows outstanding durability, remaining nonattenuated after 50 h of electrolysis at 100 mA·cm^–2. This work offers an effective avenue to develop an efficient and corrosion-resistant seawater HER electrocatalyst.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141370563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}