Green Chemistry最新文献_第5页

Multi-layered CuO/SiO2 core–shell structure improves electrocatalytic CO2-to-n-propanol conversion† 多层CuO/SiO2核壳结构改善了电催化co2到正丙醇的转化†

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-04-15 DOI: 10.1039/d4gc06563h

Sha Wang , Jiangling Zhang , Yingzhe Zhao , Jiajun Zhong , Zhongjun Chen , Yisen Yang , Buxing Han , Yongxin Cheng , Meiling Li , Qian Li

{"title":"Multi-layered CuO/SiO2 core–shell structure improves electrocatalytic CO2-to-n-propanol conversion†","authors":"Sha Wang , Jiangling Zhang , Yingzhe Zhao , Jiajun Zhong , Zhongjun Chen , Yisen Yang , Buxing Han , Yongxin Cheng , Meiling Li , Qian Li","doi":"10.1039/d4gc06563h","DOIUrl":"10.1039/d4gc06563h","url":null,"abstract":"<div><div>The electroreduction of carbon dioxide (CO<sub>2</sub>) to high-energy-density C<sub>3</sub> products (<em>e.g.</em>, <em>n</em>-propanol (<em>n</em>-PrOH)) is of great importance but restricted by low selectivity and activity. Herein, we developed a novel CuO/SiO<sub>2</sub> electrocatalyst, with multi-layered CuO as the core and an SiO<sub>2</sub> layer as the shell, for improving CO<sub>2</sub>-to-<em>n</em>-propanol conversion efficiency. Such a unique structure could stabilize and confine C<sub>1</sub> and C<sub>2</sub> intermediates, favoring their contact and carbon trimerization towards <em>n</em>-propanol formation. It delivered an <em>n</em>-propanol Faraday efficiency of 13.3% at −1.65 V with a partial current density of 94.0 mA cm<sup>−2</sup> in a flow cell. The mechanism for electrocatalytic CO<sub>2</sub>-to-<em>n</em>-PrOH conversion over the CuO/SiO<sub>2</sub> catalyst was investigated using <em>in situ</em> Raman spectroscopy and <em>in situ</em> attenuated total reflection surface-enhanced infrared absorption spectroscopy.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 18","pages":"Pages 5202-5209"},"PeriodicalIF":9.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Biochemicals to enable biorefining: a case study of polyphenol extraction from bio-oil for utilization as a biodiesel antioxidant† 实现生物精炼的生物化学：从生物油中提取多酚作为生物柴油抗氧化剂的案例研究†

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-04-15 DOI: 10.1039/d5gc00184f

Xiaopeng Shi , Haotong Lin , Qi Ouyang , Guanqun Luo , Xianghong Lu , Jianbing Ji , Kaige Wang

{"title":"Biochemicals to enable biorefining: a case study of polyphenol extraction from bio-oil for utilization as a biodiesel antioxidant†","authors":"Xiaopeng Shi , Haotong Lin , Qi Ouyang , Guanqun Luo , Xianghong Lu , Jianbing Ji , Kaige Wang","doi":"10.1039/d5gc00184f","DOIUrl":"10.1039/d5gc00184f","url":null,"abstract":"<div><div>Although bio-oil from biomass pyrolysis can be hydrotreated or cracked into transportation fuel, economic and energy challenges remain. One strategy is the cogeneration of oxygen-containing biochemicals with high value in biorefining. Here, we developed a simple separation method a with combination of distillation and chemical extraction to produce a stream of mixed phenolic compounds, the potential of which as a sustainable biodiesel antioxidant was explored. The study revealed that higher distillation temperatures (>250 °C) contributed to the enrichment of methoxyphenols, binary phenols and ternary phenols. The presence of electron-withdrawing groups at the <em>ortho</em> and <em>para</em> positions to phenolic hydroxyl groups was found to enhance antioxidant activity. An increase in the number of phenolic hydroxyl groups also significantly improved antioxidant performance. Certain extracts with the maximum amount of pyrogallol and binary phenols exhibited comparable antioxidation performance to commercial antioxidants. Acetic acid, cyclopentanone, furfural, and benzyl ether exhibited a certain negative effect on antioxidant activity. Based on these findings, a graded utilization strategy for pyrolysis bio-oil was developed, and the economic feasibility was comprehensively evaluated. The minimum sales price of the biodiesel antioxidant was calculated to be $1072.98 per ton, which is significantly lower than the market price of commercial antioxidants, indicating the economic potential of this strategy.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 18","pages":"Pages 5027-5039"},"PeriodicalIF":9.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Efficient continuous flow oxidation of furfural to maleic anhydride using O2 as a green oxidant† 以O2为绿色氧化剂，糠醛高效连续氧化制马来酸酐†

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-04-15 DOI: 10.1039/d4gc06305h

Jonas Mortier , Christian V. Stevens , Thomas S. A. Heugebaert

引用次数: 0

N-Heterocyclic carbene-/photoredox-catalyzed regioselective carbonylation of alkenes† n -杂环碳/光氧化还原催化烯烃的区域选择性羰基化

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-04-15 DOI: 10.1039/d5gc00609k

Mao-Lin Yang , Xiao-Feng Wu

引用次数: 0

Correction: Reductive catalytic fractionation of agricultural residue and energy crop lignin and application of lignin oil in antimicrobials† 更正：农业残留物和能源作物木质素的还原催化分馏以及木质素油在抗菌剂中的应用†。

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-04-07 DOI: 10.1039/D5GC90062J

Yagya Gupta, Sunitha Sadula and Dionisios G. Vlachos

引用次数: 0

Correction: Iron-photocatalyzed desulfurizing chlorination with seawater 修正：铁光催化海水脱硫氯化

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-03-26 DOI: 10.1039/D5GC90049B

Boning Gu, Yinsong Zhao, Chengliang Li and Xuefeng Jiang

引用次数: 0

Correction: Lignin organic–inorganic supramolecular aggregate derived N,O co-doped porous carbon nanosheets for high performance zinc-ion hybrid capacitors 修正：木质素有机-无机超分子聚集体衍生的N，O共掺杂多孔碳纳米片用于高性能锌离子杂化电容器

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-03-24 DOI: 10.1039/D5GC90054A

Yukang Fan, Dongjie Yang, Fangbao Fu, Xueqing Qiu and Wenli Zhang

引用次数: 0

Asymmetric TiS1O1N2 site for interfacial polarization with improved NO3−-to-NH3 photoreduction† 改善NO3−到nh3光还原†的界面极化不对称tis101n2位点

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-03-20 DOI: 10.1039/d5gc00516g

Chunlei Xuan , Xihang Yan , Jun Xiong , Yao Wu , Gazi Hao , Wei Jiang , Jun Di

{"title":"Asymmetric TiS1O1N2 site for interfacial polarization with improved NO3−-to-NH3 photoreduction†","authors":"Chunlei Xuan , Xihang Yan , Jun Xiong , Yao Wu , Gazi Hao , Wei Jiang , Jun Di","doi":"10.1039/d5gc00516g","DOIUrl":"10.1039/d5gc00516g","url":null,"abstract":"<div><div>The efficiency of photocatalytic ammonia production is limited by insufficient active sites and sluggish interfacial charge transfer in photocatalysts. To address this, a titano-oxide phthalocyanine monatomic layer (TiOPc) is modified onto the face-centered cubic structured CdIn<sub>2</sub>S<sub>4</sub><em>via</em> a hydrothermal process, significantly increasing the number of active sites. The close proximity of CdIn<sub>2</sub>S<sub>4</sub> and TiOPc creates a local interface with an asymmetric configuration, resulting in a pronounced potential difference and an electron-rich TiS<sub>1</sub>O<sub>1</sub>N<sub>2</sub> polarization site. This configuration facilitates rapid charge transport between the two materials through the interfacial Ti–S bond. Profiting from these properties, TiOPc/CdIn<sub>2</sub>S<sub>4</sub> delivers an impressive NH<sub>3</sub> formation rate of 2572.8 μmol g<sup>−1</sup> h<sup>−1</sup> and an apparent quantum efficiency achieving 7.16%, 6.86%, 4.12%, 2.13%, 1.86% and 1.15% at 400, 450, 500, 550, 650 and 700 nm, respectively. This study offers a practical method for designing symmetry breaking structures and establishing strongly coupled interfaces to enhance photocatalytic performance.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 17","pages":"Pages 4742-4749"},"PeriodicalIF":9.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Conversion of natural tissues and food waste into aerogels and their application in oleogelation† 天然组织和食物垃圾转化为气凝胶及其在油凝胶中的应用

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-03-20 DOI: 10.1039/d4gc05703a

Lara Gibowsky , Lorenzo De Berardinis , Stella Plazzotta , Erik Manke , Isabella Jung , Daniel Alexander Méndez , Finnja Heidorn , Gesine Liese , Julia Husung , Andreas Liese , Pavel Gurikov , Irina Smirnova , Lara Manzocco , Baldur Schroeter

{"title":"Conversion of natural tissues and food waste into aerogels and their application in oleogelation†","authors":"Lara Gibowsky , Lorenzo De Berardinis , Stella Plazzotta , Erik Manke , Isabella Jung , Daniel Alexander Méndez , Finnja Heidorn , Gesine Liese , Julia Husung , Andreas Liese , Pavel Gurikov , Irina Smirnova , Lara Manzocco , Baldur Schroeter","doi":"10.1039/d4gc05703a","DOIUrl":"10.1039/d4gc05703a","url":null,"abstract":"<div><div>In this work, various natural tissues were for the first time directly converted into nanostructured aerogels by utilizing their intrinsic (meso-)porosity. In contrast to common aerogel production, no use of pure biopolymers, their extraction, dissolution, gelation or use of additives (<em>e.g.</em> crosslinkers, acids and bases) was necessary. The production process required washing of the wet starting material with water, a solvent exchange with ethanol and drying with supercritical CO<sub>2</sub>. The resulting materials exhibited low bulk densities (0.01–0.12 g cm<sup>−3</sup>), significant specific surface areas (108–446 m<sup>2</sup> g<sup>−1</sup>) and mesopore volumes (0.3–2.6 cm<sup>3</sup> g<sup>−1</sup>). Assessment of 20 different tissues including fruit pulp and peel, vegetable pulp, and mushrooms showed the generality of the approach. A broad spectrum of different microstructures was identified, whereas especially textural properties of samples derived from water rich pulp were highly similar to those found in classical biopolymer aerogels, for instance based on pectin or cellulose. Furthermore, the capability of the materials to structure liquid sunflower oil was shown: the produced oleogels exhibited exceptionally high oil uptake (max. 99%) and rheological properties similar to those of solid fats. Results suggest that supercritical drying of tissues (<em>e.g.</em> based on food waste) is a suitable approach for their upcycling into value added materials by a complete green and sustainable process. This research also contributes to sustainable development by transforming food waste into valuable aerogels and promoting science education through accessible, open-source STEM resources.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 17","pages":"Pages 4713-4731"},"PeriodicalIF":9.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Deep eutectic solvent pretreatment for improving lignin properties and subsequent 4-vinylphenol production: an integrated experimental and modeling investigation† 深度共熔溶剂预处理改善木质素性质和随后的4-乙烯基酚生产：综合实验和模型研究†

IF 9.3 1区化学

Green Chemistry Pub Date : 2025-03-20 DOI: 10.1039/d4gc06194b

Chenzhou Wang , Yangyue Wei , Mingjin Wang , Yiwei Zhang , Yanqin Huang , Zijian Xu , Kai Li , Qiang Lu

{"title":"Deep eutectic solvent pretreatment for improving lignin properties and subsequent 4-vinylphenol production: an integrated experimental and modeling investigation†","authors":"Chenzhou Wang , Yangyue Wei , Mingjin Wang , Yiwei Zhang , Yanqin Huang , Zijian Xu , Kai Li , Qiang Lu","doi":"10.1039/d4gc06194b","DOIUrl":"10.1039/d4gc06194b","url":null,"abstract":"<div><div>It has recently been estimated that around 36 million tons of sugarcane bagasse are available annually in China. The valorization of bagasse lignin holds great potential for producing high-value chemicals upon its degradation. The degradation of bagasse through fast pyrolysis is generally well established but often inefficient for chemical production due to the presence of other components of bagasse and the complex structure of lignin. Thus, in this work, fast pyrolysis technology was employed at 300, 350, 400, 500, and 600 °C to valorize bagasse lignin obtained from a deep eutectic solvent (DES) fractionation process. This process resulted in a high 4-vinylphenol (4VP) yield (14.19 wt%) with a selectivity of 69.44% without catalyst addition under optimal conditions. Moreover, multiscale computational modeling (including quantum chemical calculations and reactive molecular dynamics simulations) was performed to elucidate the complex DES–lignin molecular interactions and the enhancement effect of DES pretreatment on 4VP production. During DES pretreatment, hydrogen-bonding interactions between the chloride ions of DESs and the hydroxyl groups of lignin formed independently of the DES type and were able to compete with lignin–carbohydrate complex (LCC) linkages. Notably, the decarboxylation reaction of the <em>p</em>-coumaric acid (<em>p</em>CA) ester occurred, resulting in the dissociation of <em>p</em>CA along with lignin. Further investigation demonstrated that various DES adducts were formed through etherification and acetylation reactions, and the reaction pathways and quantities were systematically simulated. These results are considered to shed light on the valorization of bagasse.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 17","pages":"Pages 4551-4564"},"PeriodicalIF":9.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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