EES catalysis最新文献

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One-dimensional nanotube of a metal–organic framework boosts charge separation and photocatalytic hydrogen evolution from water: synthesis and underlying understanding† 一维金属有机框架纳米管促进电荷分离和光催化水制氢:合成与基本认识
EES catalysis Pub Date : 2024-01-31 DOI: 10.1039/D4EY00007B
Lifang Liu, Yejun Xiao, Xiangyang Guo, Wenjun Fan, Nengcong Yang, Chunmei Jia, Shengye Jin and Fuxiang Zhang
{"title":"One-dimensional nanotube of a metal–organic framework boosts charge separation and photocatalytic hydrogen evolution from water: synthesis and underlying understanding†","authors":"Lifang Liu, Yejun Xiao, Xiangyang Guo, Wenjun Fan, Nengcong Yang, Chunmei Jia, Shengye Jin and Fuxiang Zhang","doi":"10.1039/D4EY00007B","DOIUrl":"10.1039/D4EY00007B","url":null,"abstract":"<p >One-dimensional (1D) nanostructured inorganic semiconductors have been extensively investigated for efficiently promoting their photocatalytic performances, but it still remains unclear for metal–organic framework (MOF)-based photocatalysis. Herein we present the synthesis 1D Mn-TBAPy MOF nanotubes (denoted as Mn-TBAPy-NT) and give the first demonstration of the marked ability of the 1D nanotube structure to promote charge separation of MOFs relative to that in the Mn-TBAPy single crystal (denoted as Mn-TBAPy-SC), a feature proposed to result from the effect of strain on the nanotubes. As specifically determined using transient absorption (TA) spectroscopy, Mn-TBAPy-NT exhibits a long-lived internal charge-separated (ICS) state (255.6 ns), longer than that for Mn-TBAPy-SC (4.6 ns) and a feature apparently responsible for its over 30-fold promoted hydrogen evolution with a rate of 203.5 μmol h<small><sup>−1</sup></small> (<em>ca.</em> 10.2 mmol h<small><sup>−1</sup></small> g<small><sub>cat</sub></small><small><sup>−1</sup></small>) under visible light and a benchmark apparent quantum efficiency (AQE), of 11.7% at 420 ± 10 nm, among MOF-type photocatalysts. Our results open a new avenue for developing highly efficient MOF-based photocatalysts.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 789-794"},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00007b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139648954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tunable product selectivity on demand: a mechanism-guided Lewis acid co-catalyst for CO2 electroreduction to ethylene glycol† 按需调节产品选择性:用于二氧化碳电还原乙二醇的机制引导型路易斯酸助催化剂
EES catalysis Pub Date : 2024-01-26 DOI: 10.1039/D3EY00237C
Yifei Li, Karin U. D. Calvinho, Mahak Dhiman, Anders B. Laursen, Hengfei Gu, Dominick Santorelli, Zachary Clifford and G. Charles Dismukes
{"title":"Tunable product selectivity on demand: a mechanism-guided Lewis acid co-catalyst for CO2 electroreduction to ethylene glycol†","authors":"Yifei Li, Karin U. D. Calvinho, Mahak Dhiman, Anders B. Laursen, Hengfei Gu, Dominick Santorelli, Zachary Clifford and G. Charles Dismukes","doi":"10.1039/D3EY00237C","DOIUrl":"10.1039/D3EY00237C","url":null,"abstract":"<p >Bioinspired nickel phosphide electrocatalysts can produce more complex multi-carbon products than natural photosynthetic enzymes but controlling C-product selectivity and suppressing H<small><sub>2</sub></small> evolution remain open challenges. Here, we report a significant shift in the CO<small><sub>2</sub></small>RR product distribution on Ni<small><sub>2</sub></small>P in the presence of boric acid/borate, a soluble Lewis acid/base co-catalyst. Using Ni<small><sub>2</sub></small>P without a co-catalyst, CO<small><sub>2</sub></small> reduction produces a mixture of methyl glyoxal (C<small><sub>3</sub></small>) &gt; 2,3-furnadiol (C<small><sub>4</sub></small>) and formic acid (C<small><sub>1</sub></small>) with 100% Faradaic efficiency for carbon products. Addition of boric acid/borate shifts product selectivity to ethylene glycol (EG) with an 85% CO<small><sub>2</sub></small>-Faradaic efficiency (at 10 mM, 0 V <em>vs.</em> RHE), with the balance being the aforementioned C<small><sub>1</sub></small>, C<small><sub>3</sub></small> and C<small><sub>4</sub></small> products. The mechanism of EG formation is proposed to occur by the co-catalyst activating a reaction between surface *hydride and *glycolaldehyde on Ni<small><sub>2</sub></small>P, while suppressing the aldol C–C coupling reaction that forms the C<small><sub>3</sub></small> and C<small><sub>4</sub></small> products. The formation of an intermediate borate-EG-diester, [(OCH<small><sub>2</sub></small>CHO)<small><sub>2</sub></small>B]<small><sup>−</sup></small>, is detected by <small><sup>11</sup></small>B-NMR, which hydrolyzes to release the EG product. Extended electrolysis of boric acid modifies the surface of Ni<small><sub>2</sub></small>P by forming *BO<small><sub>3</sub></small>–Ni<small><sub>2</sub></small>P, as shown by XPS. CO<small><sub>2</sub></small> electro-reduction on *BO<small><sub>3</sub></small>–Ni<small><sub>2</sub></small>P in the absence of free boric acid produces exclusively ethylene oxide (EO), which slowly hydrolyzes to EG in the bicarbonate electrolyte. The combined Faradaic efficiencies for CO<small><sub>2</sub></small>RR products EO + EG with free boric acid as the co-catalyst and *BO<small><sub>3</sub></small>–Ni<small><sub>2</sub></small>P as the cathode reaches 88% (at 0 V <em>vs</em>. RHE), a record carbon selectivity. This work illustrates the feasibility of using Lewis acid/base co-catalysts to change the established chemical reaction mechanism of an electrocatalyst to form a new, chemically predictable, more valuable product in high yield.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 823-833"},"PeriodicalIF":0.0,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00237c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139579112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photothermal catalytic oxidation of toluene over the Pt–Mn2O3/CN nanocomposite catalyst† Pt-Mn2O3/CN 纳米复合催化剂对甲苯的光热催化氧化作用
EES catalysis Pub Date : 2024-01-20 DOI: 10.1039/D3EY00298E
Xiao Yu, Chuang Zhao, Lixia Yang, Jian Zhang and Chunlin Chen
{"title":"Photothermal catalytic oxidation of toluene over the Pt–Mn2O3/CN nanocomposite catalyst†","authors":"Xiao Yu, Chuang Zhao, Lixia Yang, Jian Zhang and Chunlin Chen","doi":"10.1039/D3EY00298E","DOIUrl":"10.1039/D3EY00298E","url":null,"abstract":"<p >The Pt–Mn<small><sub>2</sub></small>O<small><sub>3</sub></small>/CN catalyst formed through synthesis <em>via</em> a solvent-thermal method involves a synergistic combination of polymer CN and Pt nanoparticles loaded on Mn<small><sub>2</sub></small>O<small><sub>3</sub></small> to catalyze the degradation of toluene. The composition incorporates Mn<small><sub>2</sub></small>O<small><sub>3</sub></small> as the central element for photothermal conversion, CN as a uniformly dispersed matrix for Pt nanoparticles, and Pt as the catalytically active center, demonstrating significant efficacy. Particularly noteworthy is the discernible enhancement in the photothermal catalytic degradation capability of the Pt–Mn<small><sub>2</sub></small>O<small><sub>3</sub></small>/CN composite catalyst, specifically in the context of toluene. When subjected to light intensity of 300 mW cm<small><sup>−2</sup></small> and a toluene concentration of 400 ppm, Pt–Mn<small><sub>2</sub></small>O<small><sub>3</sub></small>/CN achieves toluene conversion and CO<small><sub>2</sub></small> mineralization rates of 99% and 80.9%, respectively. This improvement primarily stems from the Pt nanoparticles inducing a substantial presence of oxygen vacancies within the catalyst structure, thereby increasing the oxygen adsorption capacity and surface mobility. This, in turn, activates adsorbed oxygen species at the catalyst's interface. The adept utilization and conversion of solar irradiance for volatile organic compound (VOC) abatement underscore its potential as an environmentally friendly and renewable energy source.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 811-822"},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00298e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139518493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A minireview on electrochemical CO2 conversion based on carbonate/bicarbonate media 基于碳酸盐/碳酸氢盐介质的二氧化碳电化学转化小视图
EES catalysis Pub Date : 2024-01-18 DOI: 10.1039/D3EY00287J
Tiehuai Li and Minhua Shao
{"title":"A minireview on electrochemical CO2 conversion based on carbonate/bicarbonate media","authors":"Tiehuai Li and Minhua Shao","doi":"10.1039/D3EY00287J","DOIUrl":"10.1039/D3EY00287J","url":null,"abstract":"<p >Direct electrochemical CO<small><sub>2</sub></small> conversion in carbonate/bicarbonate based CO<small><sub>2</sub></small> capture media has emerged as a promising technology for integrating carbon capture and CO<small><sub>2</sub></small> electroreduction processes in recent years, garnering significant attention from researchers owing to its high energy efficiency and carbon efficiency. For a holistic understanding of the development status of this field, this minireview summarizes a series of studies on the mechanism of carbonate/bicarbonate electrolyzers. Detailed mechanisms of the electrochemical conversion of carbonate/bicarbonate, the evolution of electrolyzers, and factors influencing the performance of electrolyzers are introduced. A summary of carbonate/bicarbonate electrolyzers' performance is also provided. Representative systems and materials for regulating the selectivity towards various products (<em>e.g.</em>, CO, formate, methane, ethylene, and ethanol) and the cell voltage are highlighted. Furthermore, the challenges and future opportunities in this research area are also discussed.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 2","pages":" 564-572"},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00287j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139501622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Au-decorated Sb2Se3 photocathodes for solar-driven CO2 reduction† 用于太阳能驱动的二氧化碳还原的金装饰 Sb2Se3 光电阴极
EES catalysis Pub Date : 2024-01-16 DOI: 10.1039/D3EY00222E
John Mark Christian M. Dela Cruz, Ádám Balog, Péter S. Tóth, Gábor Bencsik, Gergely F. Samu and Csaba Janáky
{"title":"Au-decorated Sb2Se3 photocathodes for solar-driven CO2 reduction†","authors":"John Mark Christian M. Dela Cruz, Ádám Balog, Péter S. Tóth, Gábor Bencsik, Gergely F. Samu and Csaba Janáky","doi":"10.1039/D3EY00222E","DOIUrl":"10.1039/D3EY00222E","url":null,"abstract":"<p >Photoelectrodes with FTO/Au/Sb<small><sub>2</sub></small>Se<small><sub>3</sub></small>/TiO<small><sub>2</sub></small>/Au architecture were studied in photoelectrochemical CO<small><sub>2</sub></small> reduction reaction (PEC CO<small><sub>2</sub></small>RR). The preparation is based on a simple spin coating technique, where nanorod-like structures were obtained for Sb<small><sub>2</sub></small>Se<small><sub>3</sub></small>, as confirmed by SEM images. A thin conformal layer of TiO<small><sub>2</sub></small> was coated on the Sb<small><sub>2</sub></small>Se<small><sub>3</sub></small> nanorods <em>via</em> ALD, which acted as both an electron transfer layer and a protective coating. Au nanoparticles were deposited as co-catalysts <em>via</em> photo-assisted electrodeposition at different applied potentials to control their growth and morphology. The use of such architectures has not been explored in CO<small><sub>2</sub></small>RR yet. The photoelectrochemical performance for CO<small><sub>2</sub></small>RR was investigated with different Au catalyst loadings. A photocurrent density of ∼7.5 mA cm<small><sup>−2</sup></small> at −0.57 V <em>vs.</em> RHE for syngas generation was achieved, with an average Faradaic efficiency of 25 ± 6% for CO and 63 ± 12% for H<small><sub>2</sub></small>. The presented results point toward the use of Sb<small><sub>2</sub></small>Se<small><sub>3</sub></small>-based photoelectrodes in solar CO<small><sub>2</sub></small> conversion applications.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 2","pages":" 664-674"},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00222e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Direct biomass valorisation to γ-valerolactone by Ru-PNP catalysed hydrogenation in acid† 在酸性条件下通过 Ru-PNP 催化加氢直接将生物质转化为 γ-戊内酯
EES catalysis Pub Date : 2024-01-11 DOI: 10.1039/D3EY00247K
Sakhitha Koranchalil and Martin Nielsen
{"title":"Direct biomass valorisation to γ-valerolactone by Ru-PNP catalysed hydrogenation in acid†","authors":"Sakhitha Koranchalil and Martin Nielsen","doi":"10.1039/D3EY00247K","DOIUrl":"10.1039/D3EY00247K","url":null,"abstract":"<p >Converting carbohydrate-rich biomass waste directly to γ-valerolactone (GVL) is highly attractive but challenging owing to the inert nature and high complexity of biomass, necessitating a versatile and selective catalytic system. Herein, we describe the first direct conversion of monosaccharides (glucose, fructose, and xylose) and polysaccharides (cellulose and hemicellulose) in high yields under mild conditions. We also present the first direct conversion of raw lignocellulose, starch, and chitin biomass to GVL. Using the homogeneous catalyst Ru-MACHO-BH in H<small><sub>3</sub></small>PO<small><sub>4</sub></small>(aq) under 30 bar H<small><sub>2</sub></small> at 125–140 °C for 24–120 hours provides GVL in excellent yields (26–48 mol%).</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 803-810"},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00247k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139423736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amine functionalized surface frustrated Lewis pairs boost CO2 photocatalysis†‡ 胺官能化表面受挫路易斯对促进二氧化碳光催化
EES catalysis Pub Date : 2024-01-09 DOI: 10.1039/D3EY00261F
Qinhui Guan, Chengzhe Ni, Tingjiang Yan, Na Li, Lu Wang, Zhe Lu, Weiguang Ran, Yipin Zhang, Wenjuan Li, Lulu Zhang, Dapeng Zhang, Baibiao Huang and Geoffrey A. Ozin
{"title":"Amine functionalized surface frustrated Lewis pairs boost CO2 photocatalysis†‡","authors":"Qinhui Guan, Chengzhe Ni, Tingjiang Yan, Na Li, Lu Wang, Zhe Lu, Weiguang Ran, Yipin Zhang, Wenjuan Li, Lulu Zhang, Dapeng Zhang, Baibiao Huang and Geoffrey A. Ozin","doi":"10.1039/D3EY00261F","DOIUrl":"10.1039/D3EY00261F","url":null,"abstract":"<p >The archetype surface frustrated Lewis pair (SFLP) that facilitates CO<small><sub>2</sub></small> photocatalytic hydrogenation to methanol and carbon monoxide, is an InOH⋯In site positioned in the surface of a nanoscale indium oxide hydroxide, denoted In<small><sub>2</sub></small>O<small><sub>3−<em>x</em></sub></small>(OH)<small><sub><em>y</em></sub></small>. Proximal Lewis acid In(<small>III</small>) and Lewis base InOH of this genre serve as surface active sites that enable the photochemical heterolytic H<small><sub>2</sub></small> dissociation and reduction of CO<small><sub>2</sub></small> to the mentioned products. The conversion rate enabled by light has been found to far exceed that enabled by heat. Efforts to enhance the CO<small><sub>2</sub></small> photocatalytic performance of the SFLP have involved modifications of the Lewis acidity and basicity through isomorphic substitution of In(<small>III</small>) with Bi(<small>III</small>) and changes in the population of oxygen vacancies through control of oxide non-stoichiometry. Replacement of the Lewis base hydroxide InOH by the stronger Lewis base amine InNH<small><sub>2</sub></small> heretofore remains unexplored. The strategy described herein to explore this opportunity begins with the synthesis of In<small><sub>2</sub></small>O<small><sub>3−<em>x</em></sub></small>(EDA)<small><sub><em>y</em></sub></small>. This new material is proven to contain an InNH<small><sub>2</sub></small>⋯In SFLP and its CO<small><sub>2</sub></small> photocatalytic performance is demonstrated to outperform that of its In<small><sub>2</sub></small>O<small><sub>3−<em>x</em></sub></small>(OH)<small><sub><em>y</em></sub></small> progenitor. Tailored Lewis acidity and basicity surfaces bring CO<small><sub>2</sub></small> photocatalysis another step closer to the vision of solar CO<small><sub>2</sub></small> refineries.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 2","pages":" 573-584"},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00261f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metal halide perovskites for CO2 photoreduction: recent advances and future perspectives 用于二氧化碳光致还原的金属卤化物过氧化物:最新进展与未来展望
EES catalysis Pub Date : 2024-01-06 DOI: 10.1039/D3EY00187C
Zhongliang Dong, Bowen Li, Yinlong Zhu and Wanlin Guo
{"title":"Metal halide perovskites for CO2 photoreduction: recent advances and future perspectives","authors":"Zhongliang Dong, Bowen Li, Yinlong Zhu and Wanlin Guo","doi":"10.1039/D3EY00187C","DOIUrl":"10.1039/D3EY00187C","url":null,"abstract":"<p >CO<small><sub>2</sub></small> emission has inarguably become one of the greatest challenges ever faced by mankind since industrial revolution. Techniques aiming at capture, storage and utilization of CO<small><sub>2</sub></small> have attracted tremendous interest from both industry and academia. Thermal, electrical and photo-catalytic conversion of CO<small><sub>2</sub></small> to value-added chemicals and fuels is the most well-known approach for CO<small><sub>2</sub></small> utilization. In particular, photocatalytic reduction of CO<small><sub>2</sub></small> (CO<small><sub>2</sub></small>PR) directly employs solar energy as the driving force to activate CO<small><sub>2</sub></small>, yielding various products including CO, CH<small><sub>4</sub></small> and C<small><sub>2+</sub></small> hydrocarbons. CO<small><sub>2</sub></small>PR, which mimics photosynthesis occurring in nature, is also regarded as “artificial photosynthesis” and is believed to be a promising approach toward carbon neutral economy. Recently, metal halide perovskites (MHPs) have emerged as potential photocatalysts for CO<small><sub>2</sub></small>PR, owing to their flexible structures and excellent photoelectronic properties. This review presents a comprehensive overview of state-of-the-art developments in MHP-based catalysts for CO<small><sub>2</sub></small>PR. Firstly, the crystal structures and photoelectric properties of MHPs are reviewed in detail, as they are the key factors determining CO<small><sub>2</sub></small>PR catalytic performance. Secondly, design strategies to promote the catalytic efficiency of CO<small><sub>2</sub></small>PR to CO conversion for both lead-based and lead-free MHPs are discussed, including morphological modifications, co-catalyst modifications, ion doping and crystal plane modifications. Thirdly, this review addresses MHP-based CO<small><sub>2</sub></small>PR to CH<small><sub>4</sub></small> and C<small><sub>2+</sub></small> products, with special emphasis on approaches adopted to promote specific product selectivity. Lastly, our perspectives and opinions are given on current research challenges and future directions for CO<small><sub>2</sub></small>PR, which we consider are critical for its industrialization.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 2","pages":" 448-474"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00187c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139374942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystalline carbon nitrides for photocatalysis 用于光催化的晶体氮化碳
EES catalysis Pub Date : 2024-01-06 DOI: 10.1039/D3EY00302G
Han Li, Bei Cheng, Jingsan Xu, Jiaguo Yu and Shaowen Cao
{"title":"Crystalline carbon nitrides for photocatalysis","authors":"Han Li, Bei Cheng, Jingsan Xu, Jiaguo Yu and Shaowen Cao","doi":"10.1039/D3EY00302G","DOIUrl":"10.1039/D3EY00302G","url":null,"abstract":"<p >Photocatalysis is considered as an effective approach to address energy and environmental issues. Carbon nitride (CN) is a promising metal-free semiconductor photocatalyst because of its unique properties such as tunable electronic band structure, facile/cheap synthesis and high chemical stability. However, the pristine CN prepared by the traditional thermal polymerization method is usually an amorphous or semi-crystalline conjugated bulk with a high density of structural defects, resulting in its moderate photocatalytic activity. Increasing the crystallinity of CN is an effective strategy to enhance its photocatalytic activity, and a few methods have been proposed, including high-temperature and high-pressure treatment, ionothermal method, solvothermal synthesis and microwave-assisted thermal polymerization. This review summarizes recent advances in the preparation of crystalline carbon nitrides (CCNs) and the design of CCNs-based photocatalysts in terms of nanostructure design, molecular structure engineering and construction of CCNs-based heterojunctions. In addition, their applications in a range of photocatalysis fields such as water splitting, carbon dioxide reduction, degradation of pollutants, organic synthesis and H<small><sub>2</sub></small>O<small><sub>2</sub></small> production are reviewed. Finally, the concluding remarks are presented as well as challenges and prospects for future development of CCNs-based photocatalysts.</p>","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 2","pages":" 411-447"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00302g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139374655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel double-layer core–shell photocatalyst CdS–TiO2@NH2-MIL-101: enhanced conversion of CO2 and CH4 at ambient temperature† 新型双层核壳光催化剂 CdS-TiO2@NH2-MIL-101:在常温下提高二氧化碳和甲烷的转化率
EES catalysis Pub Date : 2024-01-04 DOI: 10.1039/D3EY00264K
Yufei Huang, Ling Tan, Hanyu Ma, Xuan Wang, Yangqiang Huang, Jinping Yin, Zhiwu Liang and Xiao Luo
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