Catalysis Letters最新文献_第10页

Catalytic Hydrogenolysis of HMF to DMF over N-doped Molybdenum Carbide Catalyst 掺杂 N 的碳化钼催化剂催化加氢分解 HMF 至 DMF

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-24 DOI: 10.1007/s10562-024-04757-0

Peng Rui, Wenfei Huang, Qian Xu, Han Lu, Tongqi Ye, Xin Yao, Yuewen Ye, Rulong Zhou

引用次数: 0

Visible Light-Responsive AlFeO3@g-C3N4 Heterojunction for Efficient Degradation of Organic Wastewater 用于高效降解有机废水的可见光响应型 AlFeO3@g-C3N4 异质结

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-22 DOI: 10.1007/s10562-024-04751-6

Zixuan Li, Rui Mu, Wei Zhang, Xue Lin, Qi Cui, Di Gu

{"title":"Visible Light-Responsive AlFeO3@g-C3N4 Heterojunction for Efficient Degradation of Organic Wastewater","authors":"Zixuan Li, Rui Mu, Wei Zhang, Xue Lin, Qi Cui, Di Gu","doi":"10.1007/s10562-024-04751-6","DOIUrl":"10.1007/s10562-024-04751-6","url":null,"abstract":"<p>A Z-type AlFeO<sub>3</sub>@g-C<sub>3</sub>N<sub>4</sub> photocatalyst was successfully prepared via sol-gel and high-temperature polymerization. The morphology, structure, and composition of the catalysts were analyzed by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The photocatalytic performance was evaluated by nitrobenzene degradation experiments and electrochemical station, comparing with single g-C<sub>3</sub>N<sub>4</sub> and AlFeO<sub>3</sub>. Optimizing AlFeO<sub>3</sub> precursor content in the composite yielded 1.6 and 1.8-fold higher degradation rates than single g-C<sub>3</sub>N<sub>4</sub> and AlFeO<sub>3</sub>, respectively. Furthermore, in comparison to other ratios of AlFeO<sub>3</sub>@g-C<sub>3</sub>N<sub>4</sub> composites, AF-CN-100, which exhibited the best degrading performance, had the smallest impedance, the strongest transient photocurrent response strength, and the strongest redox capacity. The heterojunction produced between AlFeO<sub>3</sub> and g-C<sub>3</sub>N<sub>4</sub> was a Z-type heterojunction, as revealed by investigations on energy band structure and mechanism. This heterojunction substantially improved the separation efficiency of photogenerated electrons and holes and increased the photocatalytic activity of the composites.</p>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes 氧化铜装饰的磁性还原石墨烯氧化物催化硫醇与烷基苯的交叉脱氢偶联反应

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-22 DOI: 10.1007/s10562-024-04761-4

Marzieh Rousta, Dariush Khalili, Edris Ebrahimi, Ali Khoy

引用次数: 0

Preparation of Thermosensitive Polymer Immobilized Horseradish Peroxidase and its Application in Catalytic Degradation of Phenol 热敏聚合物固定化辣根过氧化物酶的制备及其在催化降解苯酚中的应用

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-22 DOI: 10.1007/s10562-024-04730-x

Yuanyuan Li, Yuanyuan Chen, Tongyu Li, Yongqing Song, Jiacong Wu, Juan Han, Yun Wang

{"title":"Preparation of Thermosensitive Polymer Immobilized Horseradish Peroxidase and its Application in Catalytic Degradation of Phenol","authors":"Yuanyuan Li, Yuanyuan Chen, Tongyu Li, Yongqing Song, Jiacong Wu, Juan Han, Yun Wang","doi":"10.1007/s10562-024-04730-x","DOIUrl":"10.1007/s10562-024-04730-x","url":null,"abstract":"<div><p>The immobilized horseradish peroxidase (P1-HRP) was prepared based on the affinity interaction between the phenylborate group in mVBA-b-p (AAm co AN) polymer (P1) and the adjacent dihydroxy group in horseradish peroxidase (HRP). The immobilization conditions of P1-HRP were optimized. Under the conditions of P1 concentration of 20 mg/mL, pH 8, temperature of 50 ℃, and immobilization time of 2 h, the HRP was immobilized to obtain the optimal immobilization amount (84.7 mg/g). The successful preparation of P1-HRP was demonstrated through characterizations such as laser scanning confocal microscopy (LCSM), scanning electron microscope (SEM), dynamic light scattering (DLS) and thermogravimetric analyzer (TGA). P1-HRP exhibited excellent pH stability, thermal stability and storage stability compared to the free horseradish peroxidase. P1-HRP had shown good application value in the degradation of phenol pollutants. After 10 repetitions of phenol degradation, the relative enzyme activity of P1-HRP could still be retained by 55.62%, indicating its good reusability. The optimal conditions for the catalytic degradation of phenol by P1-HRP were optimized. After catalytic degradation of phenol for 60 min under the same conditions, the degradation rate of P1-HRP (92.33%) was higher than that of free horseradish peroxidase (85.32%).</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of Ni-W Morphology on the Catalytic Ethylbenzene Hydrogenation Ni-W 形态对催化乙苯加氢的影响

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-21 DOI: 10.1007/s10562-024-04740-9

Nan Zheng, Yunyun Dong, Juan Xu, Wenqiang Lai

引用次数: 0

Synthesis of Green Heterogeneous Bifunctional Zeolite-A/Biochar Catalyst for the Production of Biodiesel from Waste Cooking Oil 利用废食用油生产生物柴油的绿色异构双功能沸石-A/生物炭催化剂的合成

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-21 DOI: 10.1007/s10562-024-04746-3

Tessema Derbe, Enyew. A Zereffa, Taju Sani, Teketel Girma

{"title":"Synthesis of Green Heterogeneous Bifunctional Zeolite-A/Biochar Catalyst for the Production of Biodiesel from Waste Cooking Oil","authors":"Tessema Derbe, Enyew. A Zereffa, Taju Sani, Teketel Girma","doi":"10.1007/s10562-024-04746-3","DOIUrl":"10.1007/s10562-024-04746-3","url":null,"abstract":"<div><p>Green heterogeneous bifunctional catalyst is sustainable for the production of biodiesel owning to its reusability, eco-friendly, and bifunctionality. In this work, a green heterogeneous bifunctional Zeolite-A/Biochar (Z-A/BC) catalyst was synthesized for the production of biodiesel from waste cooking oil (WCO) through one-pot esterification-transesterification reaction. The functional group, elemental composition, crystallographic structure, and morphology of the synthesized catalyst were characterized using FT-IR, EDX, XRD, and SEM, respectively. Furthermore, the catalytic proficiency of the synthesized catalyst was tested by optimizing methanol to oil ratio, catalyst amount, temperature, and reaction time. The maximum biodiesel yield (86.22%) was achieved at 2.5% wt. of catalyst amount, 10:1 of methanol to oil molar ratio, 70 °C of reaction temperature, and 240 min of reaction time. The synthesized Z-A/BC catalyst showed apparent catalytic efficiency than its parent materials Z-A (69.42%) and BC (74.27%). The recyclability of Z-A/BC catalyst was also found to be 86.22, 82.98, 79.08, 62.87, and 76.84% for 1<sup>st</sup>, 2<sup>nd</sup>, 3<sup>rd</sup>, 4<sup>th</sup>, and 5<sup>th</sup> cycles, sequentially which is cost effective. Furthermore, the physicochemical properties such as density, ash content, FFA, acid value, saponification value, and kinematic viscosity of the produced biodiesel were analyzed by comparing with standards. These results showed good agreement with ASTM and EN14214 biodiesel standards. Therefore, the produced biodiesel using heterogeneous bifunctional Z-A/BC catalyst from WCO could be used as an alternative engine fuel with/without blending with commercial diesel.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

One-pot Hydrothermal Synthesis of Bifunctional Co/Mo-rGO efficient Electrocatalyst for HER/OER in Water Splitting 一锅水热法合成双功能 Co/Mo-rGO 高效电催化剂，用于水分离中的 HER/OER

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-21 DOI: 10.1007/s10562-024-04723-w

Lishuang Zhao, Siyan Liu, Liguo Wei, Huiyi He, Bo Jiang, Zhaoshun Zhan, Jing Wang, Xuewei Li, Wentao Gou

{"title":"One-pot Hydrothermal Synthesis of Bifunctional Co/Mo-rGO efficient Electrocatalyst for HER/OER in Water Splitting","authors":"Lishuang Zhao, Siyan Liu, Liguo Wei, Huiyi He, Bo Jiang, Zhaoshun Zhan, Jing Wang, Xuewei Li, Wentao Gou","doi":"10.1007/s10562-024-04723-w","DOIUrl":"10.1007/s10562-024-04723-w","url":null,"abstract":"<div><p>Fabrication of highly efficient and earth-abundant bifunctional electrocatalyst to accelerate the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are critical for overall water splitting. In this work, bimetallic Co/Mo oxides modified reduced graphene oxide (rGO) was synthesized using a simple one-pot hydrothermal method, which significantly improved the electrocatalytic activity in both HER and OER. Under the optimal conditions, the double layer capacitance of rGO modified by Co/Mo bimetal is 78.08 mF cm<sup>−2</sup>. The overpotential required for HER to reach -10 mA cm<sup>−2</sup> current density is 488 mV, the dynamic Tafel slope is 126 mV dec<sup>−1</sup>. The overpotential required for OER to reach 10 mA cm<sup>−2</sup> current density is 420 mV, the slope of kinetic Tafel is 169 mV dec<sup>−1</sup>. This work provides a new prospect for the rational design and fabrication of efficient HER/OER bifunctional electrocatalysts in electrochemical energy device application.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Vapor Phase Cross Ketonization of Pivalic Acid with Acetic Acid to Prepare Pinacolone Over Mg-Zr Mixed Oxide Catalysts 在 Mg-Zr 混合氧化物催化剂上气相交叉酮化特戊酸与乙酸以制备频哪酮

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-21 DOI: 10.1007/s10562-024-04752-5

P. Mahesh Kumar, Y. Nagesh, G. Mallikarjun, N. Lingaiah

{"title":"Vapor Phase Cross Ketonization of Pivalic Acid with Acetic Acid to Prepare Pinacolone Over Mg-Zr Mixed Oxide Catalysts","authors":"P. Mahesh Kumar, Y. Nagesh, G. Mallikarjun, N. Lingaiah","doi":"10.1007/s10562-024-04752-5","DOIUrl":"10.1007/s10562-024-04752-5","url":null,"abstract":"<div><p>A sequence of MgO-ZrO<sub>2</sub> mixed oxides with varying their ratios were synthesized by adopting co-precipitation method. These catalysts characteristics were deduced from different spectroscopic methods and used for vapor phase cross-ketonization of pivalic acid with acetic acid to produce pinacolone at atmospheric pressure. The characterization results indicated that at a high ZrO<sub>2</sub> molar ratio, Mg<sub>x</sub>Zr<sub>1-x</sub>O<sub>2</sub>-x mixed oxide phase is formed, and it accounted for the presence of strong basic sites. MgO-ZrO<sub>2</sub> mixed oxides ketonization activity is superior to individual oxides and the overall activity mainly depended on their molar ratio, calcination temperature, and presence of mixed oxide phase. The basicity of the MgO-ZrO<sub>2</sub> mixed oxide catalyst is responsible for the high conversion of pivalic acid. The ketonization reaction is carried under different reaction parameters and optimized conditions were established. The catalysts are showed stability during the time on stream analysis.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comparative Study of Different Mesostructured Silica-supported Nano-iron Catalysts for Fischer–Tropsch Synthesis 用于费托合成的不同介质结构二氧化硅支撑纳米铁催化剂的比较研究

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-21 DOI: 10.1007/s10562-024-04764-1

Yaqian Liu, Feng Wu, Zhixiong You, Jinjun Li

引用次数: 0

Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater 用于油田废水中氧进化反应的超亲水性自支撑 Perovskite 氧化物

IF 2.3 4区化学

Catalysis Letters Pub Date : 2024-06-20 DOI: 10.1007/s10562-024-04753-4

Jianzhao Cao, Salman Riaz, Zhaoxiang Qi, Ke Zhao, Ying Qi, Peng Wei, Yahong Xie

{"title":"Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater","authors":"Jianzhao Cao, Salman Riaz, Zhaoxiang Qi, Ke Zhao, Ying Qi, Peng Wei, Yahong Xie","doi":"10.1007/s10562-024-04753-4","DOIUrl":"10.1007/s10562-024-04753-4","url":null,"abstract":"<div><p>Developing highly efficient catalysts for oxygen evolution reactions (OER) in complex water environments is crucial for promoting the photovoltaic electrolysis of water splitting for hydrogen production in arid areas. However, traditional catalysts often exhibit limitations in terms of reaction kinetics and electrode corrosion resistance. In this work, we successfully prepared a self-supporting perovskite complex oxide La<sub>0.7</sub>Sr<sub>0.3</sub>CoO<sub>3-δ</sub>/NF (LSC/NF) catalyst by means of simple hydrothermal synthesis combined with programmed annealing, and successfully applied to OER reaction in oilfield wastewater. In alkaline oilfield wastewater, at a current density of 10 mA cm<sup>−2</sup>, LSC/NF requires only 411 mV of overpotential, which is lower than that of LSC (493 mV) and traditional catalyst RuO<sub>2</sub> (451 mV), suggesting a high OER catalytic activity. The good electrocatalytic activity can be attributed to its superhydrophilicity, increased electrochemical active surface area, faster reaction kinetics and higher oxygen vacancy concentration. This research offers valuable new insights for the development of OER electrocatalysts with high catalytic activity in complex water systems in arid areas.</p><h3>Graphical Abstract</h3><p>A self-supporting perovskite oxide catalyst La<sub>0.7</sub>Sr<sub>0.3</sub>CoO<sub>3-δ</sub>/NF was synthesized by a simple process combining hydrothermal and annealing. The growth of perovskite oxide nanosheets directly on the conductive nickel foam matrix gives the catalyst a strong hydrophilicity and significantly expands its electrochemical active surface area, thus enhancing the OER activity of LSC/NF in oilfield wastewater.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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