ChemSusChem最新文献_第7页

Effect of Fluorine Doping on the Electrochemistry and Structural Stability of Single-Particle LiNiO₂. 氟掺杂对单粒子LiNiO2电化学及结构稳定性的影响。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-19 DOI: 10.1002/cssc.202500300

Elhoucine ELmaataouy, Majid El Kassaoui, Mohamed ELmouhinni, Kei Kubota, Abdlewahed Chari, Mohamed Aqil, Adil Sghiouri, Jones Alami, Omar Mounkachi, Mouad Dahbi

{"title":"Effect of Fluorine Doping on the Electrochemistry and Structural Stability of Single-Particle LiNiO2.","authors":"Elhoucine ELmaataouy, Majid El Kassaoui, Mohamed ELmouhinni, Kei Kubota, Abdlewahed Chari, Mohamed Aqil, Adil Sghiouri, Jones Alami, Omar Mounkachi, Mouad Dahbi","doi":"10.1002/cssc.202500300","DOIUrl":"10.1002/cssc.202500300","url":null,"abstract":"It is widely acknowledged that single-particle LiNiO2 represents an attractive option as a cobalt-free cathode material, given its high capacity and average working voltage. However, prolonged cell cycling has been observed to result in a decline in performance and structural deterioration in LiNiO2 cathodes. Anion doping has recently been the subject of considerable interest due to the numerous benefits it offers, including the elimination of the need for active element replacement and increased structural stability. In this study, a fluorine-doped single-particle LiNiO2 is prepared via a hydrothermal synthesis assisted by ball milling, resulting in a stable charge/discharge process at a current density of 0.2C, with a capacity retention of 90% after 60 cycles and first discharge capacity of 220 mAh g-1. The incorporation of fluorine is confirmed through cross-sectional scanning electron microscopy and X-ray photoelectron spectroscopy, which reveal a correlation between fluorine doping and the partial reduction of Ni3+ to Ni2+. The impact of fluorine doping on the structural stability of LiNiO2 is investigated using in-situ X-ray diffraction XRD and density functional theory calculations. Consequently, the F doping strategy demonstrates the dual benefit of high capacity and cycle retention in single-particle LiNiO2 cathodes.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500300"},"PeriodicalIF":7.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144092323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reciprocal Ternary Molten Salts Enable the Direct Upcycling of Spent Lithium-Nickel-Manganese-Cobalt Oxide (NMC) Mixtures to Make NMC 622. 互惠三元熔盐可以直接升级回收废锂-镍-锰-钴氧化物（NMC）混合物，以制造NMC 622。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-15 DOI: 10.1002/cssc.202500571

Tao Wang, Xin Wang, Huimin Luo, Juntian Fan, Qingju Wang, Zhenzhen Yang, Yaocai Bai, Kae Fink, Patrick Walker, Ilias Belharouak, Sheng Dai

{"title":"Reciprocal Ternary Molten Salts Enable the Direct Upcycling of Spent Lithium-Nickel-Manganese-Cobalt Oxide (NMC) Mixtures to Make NMC 622.","authors":"Tao Wang, Xin Wang, Huimin Luo, Juntian Fan, Qingju Wang, Zhenzhen Yang, Yaocai Bai, Kae Fink, Patrick Walker, Ilias Belharouak, Sheng Dai","doi":"10.1002/cssc.202500571","DOIUrl":"10.1002/cssc.202500571","url":null,"abstract":"Cathode active material is the most valuable component of spent lithium-ion batteries, accounting for ≈30% of their overall value. Direct recycling of cathode materials involves recovering, regenerating, and reusing them without breaking down their chemical structure. This approach maximizes the added value of the cathode compound and reduces manufacturing costs by avoiding the need for virgin material production. However, one key challenge in scaling direct recycling from lab to industry is the requirement for highly purified cathode materials, contrasting with the low purity of black mass generated from battery shredding. No efficient separation process currently exists to isolate different lithium-nickel-manganese-cobalt oxides (NMCs) from each other. Thus, direct recycling technologies that can operate with mixtures of multiple NMC stoichiometries will be best-suited for industrial adoption. This study explores the direct recycling of NMC mixtures into NMC 622 using a \"reciprocal ternary molten salts (RTMS)\" system. Ionothermal relithiation and upcycling within the RTMS system successfully restore the layered structure, lithium content, and electrochemical performance of degraded NMCs, yielding results comparable to pristine NMC 622 (P-NMC 622).","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500571"},"PeriodicalIF":7.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photocatalytic singlet oxygen generation and electrocatalytic alkaline HER activity of p-type Bi2Sn2O7/carbon dots nanocomposites. p型Bi2Sn2O7/碳点纳米复合材料的光催化单线态制氧和电催化碱性HER活性。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-15 DOI: 10.1002/cssc.202500676

R K Dutta, Gajendra Ram, Shashikant Last Name Unknown, Nitika Last Name Unknown

{"title":"Photocatalytic singlet oxygen generation and electrocatalytic alkaline HER activity of p-type Bi2Sn2O7/carbon dots nanocomposites.","authors":"R K Dutta, Gajendra Ram, Shashikant Last Name Unknown, Nitika Last Name Unknown","doi":"10.1002/cssc.202500676","DOIUrl":"https://doi.org/10.1002/cssc.202500676","url":null,"abstract":"We present here a scheme for production of singlet oxygen in aqueous medium by pyrochlore based nanocomposite of p-type bismuth stannate (Bi2Sn2O7) and carbon dots (Bi2Sn2O7/CD), and demonstrate its applications as photocatalysts for tetracycline degradation, and as electrocatalyst for alkaline hydrogen evolution reaction via water splitting. The batches of Bi2Sn2O7/CD are synthesized by hydrothermal method with varying carbon dot contents and they are thoroughly characterized to obtain their structural, morphological, textural and compositional information. The carbon dots in the nanocomposite offered photosensitizing behaviour. About 96% photocatalytic degradation of tetracycline hydrochloride is achieved in 40 min (k = 0.072 min-1), which is 3.6 times higher than pristine Bi2Sn2O7. The rate of singlet oxygen production in the reaction medium has been studied with respect to sunlight exposure time by EPR, which is described as a key for enhanced photocatalytic degradation. In addition, the batch of Bi2Sn2O7/(CD)3.0 as an electrocatalyst for alkaline hydrogen evolution reaction (HER) is revealed from low overpotential 136 mV at 10 mA cm-2 and Tafel slope of 41 mV dec-1 in 1M KOH, corresponding to high mass activity of 22.2 A g-1 and high specific activity 0.018 mA cm-2 at η=350 mV. The mechanism of alkaline HER is discussed.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500676"},"PeriodicalIF":7.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in Hydrogen-Driven Bicarbonate Conversion to Formic Acid and Formate Salts. 氢驱动碳酸氢盐转化为甲酸和甲酸盐的研究进展。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-14 DOI: 10.1002/cssc.202500483

Ayushi Tyagi, Shaifali Bhardwaj, Anil Kumar Sinha, Mahak Dhiman

{"title":"Advances in Hydrogen-Driven Bicarbonate Conversion to Formic Acid and Formate Salts.","authors":"Ayushi Tyagi, Shaifali Bhardwaj, Anil Kumar Sinha, Mahak Dhiman","doi":"10.1002/cssc.202500483","DOIUrl":"10.1002/cssc.202500483","url":null,"abstract":"According to a January 2025 report by the UK Met Office, carbon dioxide (CO2) levels are expected to reach 429.6 ppm in May, marking the highest concentration in over 2 million years. This alarming rise has intensified global efforts to mitigate climate change through carbon capture and utilization (CCU) technologies. A promising strategy is converting CO2 into valuable chemicals such as formic acid and formate salts. Formic acid, in particular, is seen as a potential hydrogen carrier, addressing challenges in hydrogen storage and transport. However, the direct hydrogenation of CO2 to formic acid is thermodynamically challenging due to the high stability. To overcome these barriers, researchers have explored alternative pathways, such as the reduction of bicarbonate (HCO3 -), which is more reactive and easier to handle. Bicarbonate can be sourced from CO2-rich streams like flue gases or seawater, simplifying capture and conversion. This review explores hydrogen-driven bicarbonate conversion via catalytic methods: electrocatalysis, thermocatalysis, photocatalysis, homogeneous, and enzymatic catalysis. Each uses distinct energy inputs and offers unique advantages. While electrocatalysis shows 90% Faradaic efficiency, photocatalysis and enzymatic approaches remain limited by quantum yields and scalability. The review outlines key advances, challenges, and future directions to enhance these technologies for a sustainable, carbon-neutral future.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500483"},"PeriodicalIF":7.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-Intermetallic Heterostructure on Hierarchical Nanoporous Metal for Highly Efficient Nitrate Reduction Electrocatalysis. 层状纳米孔金属双金属间异质结构用于高效硝酸还原电催化。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-13 DOI: 10.1002/cssc.202500380

Yirong Liu, Wence Xu, Zhonghui Gao, Yanqin Liang, Hui Jiang, Zhaoyang Li, Fang Wang, Shengli Zhu, Zhenduo Cui

引用次数: 0

Dislocation-induced Strain in Bismuth Nanoparticles for improving Carbon Dioxide Electroreduction to Formic Acid. 位错诱导的铋纳米颗粒应变改善二氧化碳电还原制甲酸。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-13 DOI: 10.1002/cssc.202500386

Chengyang Lan, Jianzhi Wang, Shan Guan, Luqi Liu, Rui Zhi, Pengfei Yin, Jing Yang, Hui Liu, Xiwen Du, Cunku Dong

{"title":"Dislocation-induced Strain in Bismuth Nanoparticles for improving Carbon Dioxide Electroreduction to Formic Acid.","authors":"Chengyang Lan, Jianzhi Wang, Shan Guan, Luqi Liu, Rui Zhi, Pengfei Yin, Jing Yang, Hui Liu, Xiwen Du, Cunku Dong","doi":"10.1002/cssc.202500386","DOIUrl":"https://doi.org/10.1002/cssc.202500386","url":null,"abstract":"Through a solid-electrolyte membrane electrode assembly (MEA) electrolyzer, CO₂ can be electrochemically reduced to feasibly produce liquid formic acid. However, there still lacks of the in-depth exploration into the catalyst design suitable for cathode membrane electrode as a key component in a solid-electrolyte MEA electrolyzer. Herein, a lattice strain-rich bismuth nanoparticle (D-Bi-NPS) integrated with anion exchange membrane is designed to produce formic acid, which can continuously produce formic acid with a concentration of 0.19 M for more than 74 hours at a current density of 100 mA·cm-2. By using this cathode membrane electrode, the Faradaic efficiency for formic acid can reach a maximum of 94.1%, with values exceeding 80% for the majority of the operational time. The improved performance of D-Bi-NPS is attributed to its abundant internal defects, which generate compressive strains that can dramatically accelerate interfacial electron transfer and optimize adsorption strength of intermediate. This study offers a novel approach for the design and development of solid-electrolyte MEA electrolyzer.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500386"},"PeriodicalIF":7.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Concentrated Peroxodicarbonate for Efficient Oxidative Degradation of Kraft Lignin. 高浓度过氧碳酸氢盐促进硫酸盐木质素的氧化降解。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-13 DOI: 10.1002/cssc.202500741

Niclas Schupp, Theresa Rücker, Elisabeth Glöckner, Bernd Wittgens, Siegfried R Waldvogel

引用次数: 0

Chloride-Mediated Transformation of Copper Nanoparticles to Nanosponges for Nitric Acid Reduction at Low Concentrations. 氯离子介导的铜纳米颗粒转化为纳米海绵用于低浓度硝酸还原。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-12 DOI: 10.1002/cssc.202500581

Ke-Xin Li, Yu-Shu Han, Lei Bian, Hao Tian, Jia-Yi Chen, Zhi Ma, Zhong-Li Wang

{"title":"Chloride-Mediated Transformation of Copper Nanoparticles to Nanosponges for Nitric Acid Reduction at Low Concentrations.","authors":"Ke-Xin Li, Yu-Shu Han, Lei Bian, Hao Tian, Jia-Yi Chen, Zhi Ma, Zhong-Li Wang","doi":"10.1002/cssc.202500581","DOIUrl":"10.1002/cssc.202500581","url":null,"abstract":"Acidic nitrate electroreduction reaction (NO3 -RR) offers a promising route for a sustainable nitrogen cycle. However, achieving high selectivity and efficiency under low-concentration acidic conditions remains challenging. Herein, it is demonstrated that Cu nanosponge can adsorb low-concentration nitric acid (HNO3) and efficiently convert it to ammonia (NH3). The Cu nanosponge is prepared by Cl--induced reconstruction of porous Cu nanoparticles obtained through dealloying. In a Cl--containing HNO3 solution, porous Cu nanoparticles undergo chemical oxidation to form CuCl, which reconstructs into a nanosponge through migration and electrochemical reduction, consisting of nanoparticle-supported nanosheets. The nanosponge features abundant porous structures and numerous nanoparticle-nanosheet interfaces, creating a large active surface area and providing adsorption and reaction sites for NO3 -. The optimized Cu nanosponge exhibits a 92% FE for NH3 at -0.4 V versus RHE and 90% yield of NH3 in 0.03 M HNO3, significantly outperforming Cu nanoparticle (only 66 and 47%). In situ Raman spectroscopy confirms that the nanosponge structure not only enhances NO3 - adsorption but also stabilizes the key NO2 - intermediate. Furthermore, industrial wastewater is simulated to convert low concentrations of nitrate into ammonium nitrate products, which are applied to plant cultivation, effectively promoting plant growth.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500581"},"PeriodicalIF":7.5,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controlling the Product Selectivity of Peracetic Acid-Mediated Oxidative Lignin Depolymerization via a Deep Eutectic Solvent. 过氧乙酸催化木质素氧化解聚的产物选择性研究。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-12 DOI: 10.1002/cssc.202500026

Udishnu Sanyal, Junxia Wang, Peipei Wang, Ruoshui Ma, Santheeb Balaji Velmurugan, Kuan-Ting Lin, Xiao Zhang

{"title":"Controlling the Product Selectivity of Peracetic Acid-Mediated Oxidative Lignin Depolymerization via a Deep Eutectic Solvent.","authors":"Udishnu Sanyal, Junxia Wang, Peipei Wang, Ruoshui Ma, Santheeb Balaji Velmurugan, Kuan-Ting Lin, Xiao Zhang","doi":"10.1002/cssc.202500026","DOIUrl":"10.1002/cssc.202500026","url":null,"abstract":"Developing a selective lignin depolymerization process remains a daunting challenge due to lignin's inherent structural heterogeneity and chemical complexity. This study used a novel deep eutectic solvent (DES) extraction to produce oligomeric lignin with controlled structural characteristics (narrow size distribution, lower molecular weight) and further subjected it to oxidative depolymerization using peracetic acid as an oxidant. Oxidation of lignin resulting from lactic acid/pyrazole and choline chloride/lactic acid extraction produces phenolic acids (Ph-COOH) and dicarboxylic acid (DCA) as significant products. Our results show that the judicial choice of DES during extraction plays a critical role in determining the lignin chemical structure, which follows different oxidation pathways and results in different product selectivities. The generalization of this concept has been established with two different parent lignins, e.g., Douglas fir (D.fir) and wheat straw (WS). The overall process showed that the novel DES extraction not only provides a sustainable pathway for high-purity lignin generation but also could be used as a tool to produce high-value products selectively upon its oxidation, thus improving the overall lignin biorefinery process.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2500026"},"PeriodicalIF":7.5,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating Carrier Dynamics and Interface Engineering in Sb2S3: Towards Efficient Photoanode for Water Oxidation. Sb2S3的载流子动力学和界面工程研究：迈向水氧化的高效光阳极。

IF 7.5 2区化学

ChemSusChem Pub Date : 2025-05-11 DOI: 10.1002/cssc.202402764

Sudhanshu Shukla, Irene Dei Tos, Angelica Simbula, Julian Guerrero, Thanh Dong, Sownder Subramaniam, Beatriz de la Fuente, Vishal K Jose, Tom Aernouts, Negar Naghavi, Bart Vermang, Yinghuan Kuang

{"title":"Elucidating Carrier Dynamics and Interface Engineering in Sb2S3: Towards Efficient Photoanode for Water Oxidation.","authors":"Sudhanshu Shukla, Irene Dei Tos, Angelica Simbula, Julian Guerrero, Thanh Dong, Sownder Subramaniam, Beatriz de la Fuente, Vishal K Jose, Tom Aernouts, Negar Naghavi, Bart Vermang, Yinghuan Kuang","doi":"10.1002/cssc.202402764","DOIUrl":"https://doi.org/10.1002/cssc.202402764","url":null,"abstract":"Conjugation of low-cost and high-performance semiconductors is essential in solar-driven photoelectrochemical (PEC) energy conversion. Sb2S3 is a wide-bandgap (≈1.7 eV) semiconductor with the potential to deliver a maximum photocurrent density of 24.5 mA cm-2, making it highly attractive for PEC water splitting applications. However, bulk Sb2S3 exhibits intrinsic recombination issues and low electron-hole separation, posing a limit to photocurrent generation. This study clarifies the carrier dynamics by ultrafast spectroscopy measurements and proposes the design of a heterojunction between Sb2S3 and SnO2, with suitable band-edge energy offset. The SnO2/Sb2S3 heterojunction enhances the charge separation efficiency, resulting in improvement of the photocurrent. The SnO2/Sb2S3 photoanode, fabricated entirely by vapor deposition processes, demonstrated photoelectrochemical water oxidation with a photocurrent density up to ca. 3 mA cm-2 at 1.38 V vs RHE.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202402764"},"PeriodicalIF":7.5,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0