ChemCatChem最新文献_第3页

Controlling Electronic Metal-Support Interaction for Proficient Electrocatalytic Water Splitting 控制电子金属-支撑相互作用精通电催化水分解

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.70694

Saraswati Roy, Sounak Roy

{"title":"Controlling Electronic Metal-Support Interaction for Proficient Electrocatalytic Water Splitting","authors":"Saraswati Roy, Sounak Roy","doi":"10.1002/cctc.70694","DOIUrl":"10.1002/cctc.70694","url":null,"abstract":"<div>\u0000 \u0000 The efficiency of electrochemical water splitting is primarily limited by the anodic oxygen evolution reaction (OER), which is hindered by high energy barriers, sluggish kinetics, and considerable overpotentials, much more so than the cathodic hydrogen evolution reaction (HER). The Ni-based catalysts have gained considerable interest due to the redox-active Ni2+/Ni3+ couple. Enhancing the oxidation from Ni2+ to Ni3+ is a key strategy to improve OER performance. In this study, we show through comprehensive structural and surface analyses that the highly reducible CeO2–ZrO2 support in the Ce0.6Zr0.35Ni0.05O2-δ combustion synthesized solid solution significantly promotes the Ni2+ → Ni3+ oxidation and facilitates lattice oxygen evolution during OER. In contrast, the non-reducible and inert Al2O3 support in the composite NiO/Al2O3 does not aid Ni oxidation during OER, but effectively supports Ni2+ reduction during HER, making NiO/Al2O3 a superior cathodic catalyst. Our in-depth study demonstrates that the combination of Ce0.6Zr0.35Ni0.05O2-δ as the anode and NiO/Al2O3 as the cathode in a two-electrode alkaline water-splitting device offers a cost-effective and efficient catalyst pair with excellent overall performance for practical alkaline electrolysis.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Electronic and Structural Determinants of Activity and Stability in Noble Metal OER Catalysis 贵金属OER催化活性和稳定性的电子和结构决定因素

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.202501869

Gordon A. Ochsner, Ryusuke Mizuochi, Lianzhou Wang, Zhiliang Wang

{"title":"Electronic and Structural Determinants of Activity and Stability in Noble Metal OER Catalysis","authors":"Gordon A. Ochsner, Ryusuke Mizuochi, Lianzhou Wang, Zhiliang Wang","doi":"10.1002/cctc.202501869","DOIUrl":"10.1002/cctc.202501869","url":null,"abstract":"Electrochemical water splitting, particularly via proton exchange membrane (PEM) electrolyzers, is a pivotal strategy for converting renewable energy into high-purity hydrogen fuel. However, the oxygen evolution reaction (OER) at the anode remains a critical bottleneck due to its sluggish kinetics and the harsh acidic environment. Despite the development of numerous electrocatalyst systems, only noble metal-based materials, primarily Ir and Ru, demonstrate satisfactory activity and durability in practical applications. The reliance on scarce and expensive metals underscores the urgent need for innovative catalyst design strategies that balance activity, stability, and cost. This review explores recent progress in noble metal-based OER electrocatalysts, emphasizing electronic structure tuning that influences performance. The review begins with core concepts of OER reaction mechanisms and performance metrics. Then, it examines the critical topics of catalyst electronic engineering, crystallographic control, lattice modification, and dynamic surface. The review concludes by discussing broader challenges such as the need for standardized testing, long-term durability benchmarks, and industry-relevant metrics and highlights the importance of interdisciplinary collaboration to advance sustainable, scalable OER technologies for green hydrogen production.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202501869","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Product Scope and Reactivity in Hydrothermal Conversion of Polyethylene With Solid Catalysts 固体催化剂水热转化聚乙烯的产品范围和反应性

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.70697

Johan H. van de Minkelis, Lieke E. M. van den Burg, Emma P. Rog, Rinke M. Altink, Ina Vollmer, Bert M. Weckhuysen

{"title":"Product Scope and Reactivity in Hydrothermal Conversion of Polyethylene With Solid Catalysts","authors":"Johan H. van de Minkelis, Lieke E. M. van den Burg, Emma P. Rog, Rinke M. Altink, Ina Vollmer, Bert M. Weckhuysen","doi":"10.1002/cctc.70697","DOIUrl":"10.1002/cctc.70697","url":null,"abstract":"Plastic waste can be converted into smaller hydrocarbons through hydrothermal conversion using supercritical water. It would be advantageous to introduce suitable catalyst materials under hydrothermal processing conditions to steer product selectivity. In this study, a series of commonly used solid catalysts were evaluated to identify those with the highest potential to tune the product portfolio and increase the overall performance of the hydrothermal conversion of polyethylene. Various metal oxides (i.e., TiO2, ZrO2, CeO2, SiO2 and γ-Al2O3) and aluminosilicates (i.e., zeolites H-Y and H-ZSM-5, as well as different amorphous aluminosilicates) improve the polyethylene conversion rate compared to non-catalytic hydrothermal reaction conditions. CeO2 is a promising material because it produces a naphtha-like product stream, thereby achieving full conversion, high liquid yield, high alkane/alkene selectivity, and good hydrothermal stability. To steer the conversion toward aromatics, aluminosilicates were the most effective catalyst materials, with amorphous aluminosilicates outperforming their crystalline counterparts in terms of liquid yield (40 wt%), aromatic selectivity (16 wt%) as well as stability. Crystalline aluminosilicates, such as zeolites H-Y and H-ZSM-5, also enhanced activity, but lost their structural integrity under hydrothermal reaction conditions. However, despite significant structural changes, catalysts could be reused, as reactivity of spent materials only decreased slightly.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70697","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Characterization of Pyridine-Ligated Bicyclic (Alkyl)(Amino)Carbene (BICAAC) Ruthenium Alkylidene Complexes 吡啶-连接双环（烷基）（氨基）卡宾（BICAAC）钌烷基烯配合物的合成与表征

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.70703

Pooja Dubey, Ádám Erdélyi, Márton Nagyházi, Gábor Turczel, Attila Bényei, Tibor Nagy, Sándor Kéki, Robert Tuba

{"title":"Synthesis and Characterization of Pyridine-Ligated Bicyclic (Alkyl)(Amino)Carbene (BICAAC) Ruthenium Alkylidene Complexes","authors":"Pooja Dubey, Ádám Erdélyi, Márton Nagyházi, Gábor Turczel, Attila Bényei, Tibor Nagy, Sándor Kéki, Robert Tuba","doi":"10.1002/cctc.70703","DOIUrl":"10.1002/cctc.70703","url":null,"abstract":"Grubbs-type ruthenium–alkylidene catalysts are pivotal in olefin metathesis, with improved activity and initiation achieved through ligand design. While NHC- and CAAC-based systems are well established, robust and strongly σ-donating BICAACs remain underexplored, particularly in pyridine-activated third-generation catalysts important for Ring-Opening Metathesis Polymerization (ROMP). Here we report the first synthesis and full characterization of pyridine-ligated BICAAC–Ru alkylidene complexes. Using a modified Grubbs protocol that avoids bis-carbene formation, pyridine complexes (1a–3a, 3b) were prepared from in situ generated BICAACs and bis-pyridine phosphine intermediates. Spectroscopic, crystallographic, and DFT studies show that steric congestion at Ru disfavors bis-pyridine coordination, with a second pyridine. These results establish pyridine-coordinated BICAAC–Ru complexes as a well-defined platform for next-generation metathesis catalysts.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70703","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Iron-Modified Biochar Enables Free Radical Switching for Efficient Photofenton Degradation of Trichlorophenol 铁修饰的生物炭使自由基切换有效的光fenton降解三氯苯酚

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.70698

Minghui Xiong, Guimei Huang, Xingzhi Jin, Xiaohu Zhang, Yi Yang, Hao Chen, Hongke Feng, Xing Ding

{"title":"Iron-Modified Biochar Enables Free Radical Switching for Efficient Photofenton Degradation of Trichlorophenol","authors":"Minghui Xiong, Guimei Huang, Xingzhi Jin, Xiaohu Zhang, Yi Yang, Hao Chen, Hongke Feng, Xing Ding","doi":"10.1002/cctc.70698","DOIUrl":"10.1002/cctc.70698","url":null,"abstract":"<div>\u0000 \u0000 Efficient removal of chlorophenolic pollutants remains challenging. Iron-modified biochar shows potential in photo-Fenton reactions but suffers from iron leaching and activity instability. Herein, Sycamore leaf Heat treat Char (SHC) was modified with ferric nitrate via low-temperature pyrolysis to construct SHC-Fe0.2 with a stable Fe─O─C interface. This composite achieved efficient 2,4,6-trichlorophenol (TCP) photocatalytic degradation (removal rate 62.84%, photodegradation contribution 47.01%) and low iron leaching (<5%). Iron was stably immobilized as octahedrally coordinated amorphous Fe─O─C, enhancing electron transfer and reactive oxygen species (ROS) generation. Mechanistically, iron modification switched the degradation pathway from nonradical (1O2-dominated) to radical (•OH, •O2−-dominated) with a “Fe2+/Fe3+ cycle + surface electron transfer” synergism. This study provides insights for stable iron-carbon composites and deepens understanding of iron-carbon interface behavior.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Integrating Light-Harvesting, Electron-Accumulating, and Proton-Supply Functions Into a Single Catalyst for Efficient CO2 Reduction 将光收集、电子积累和质子供应功能集成到一个催化剂中，用于有效的二氧化碳还原

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-30 DOI: 10.1002/cctc.70684

Wenqing Huang, Maho Imai, Kento Kosugi, Mio Kondo

{"title":"Integrating Light-Harvesting, Electron-Accumulating, and Proton-Supply Functions Into a Single Catalyst for Efficient CO2 Reduction","authors":"Wenqing Huang, Maho Imai, Kento Kosugi, Mio Kondo","doi":"10.1002/cctc.70684","DOIUrl":"10.1002/cctc.70684","url":null,"abstract":"The development of efficient molecular catalysts for photochemical CO2 reduction is a central challenge in artificial photosynthesis. The efficiency of this reaction depends on three critical elementary processes, namely light harvesting, electron transfer, and proton transfer. To realize efficient catalysts, the catalytic system for photochemical CO2 reduction should include following three functions: light-harvesting, electron-accumulating, and proton-supply. However, creating a single molecular system that simultaneously integrates all three functions remains challenging. In this study, a novel iron porphyrin complex, 5,10,15,20-tetrakis[4-(N-(pentan-3-yl)-1,4,5,8-naphthalenetetracarboxylic diimide-N-yl)phenyl] porphyrinato iron(III) chloride (FeNDI), was developed which successfully incorporates these three key functions through the incorporation of naphthalene diimide (NDI) moieties at the porphyrin meso-positions. FeNDI exhibits intrinsic light-harvesting ability, enabling the reaction to proceed without external photosensitizers. Additionally, it demonstrates electron-accumulating ability, which enhances catalytic durability, while also exhibiting proton-supply ability, which allows the interaction between the coordinated CO2 species and proton-supplying sites. Consequently, this complex achieved a turnover number of 611 for CO production, which is the highest value reported to date among relevant systems. This study therefore demonstrates the successful integration of all the three essential functions into a single catalyst molecule, offering a powerful strategy for the design of high-performance solar energy conversion systems.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70684","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nicotinamide-Mediated Self-Assembly of One-Dimensional Platinum-Copper Alloyed Nanowires for High-Efficiency Acidic Hydrogen Evolution and Methanol Oxidation 烟酰胺介导的一维铂铜合金纳米线自组装高效酸性析氢和甲醇氧化

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-24 DOI: 10.1002/cctc.202600018

Shasha Ye, Zhenbo Zhang, Jiayi Wu, Yiyuan Ren, Xuan Wang, Tingyu Lu, Lei Chen, Dongmei Sun, Yawen Tang

{"title":"Nicotinamide-Mediated Self-Assembly of One-Dimensional Platinum-Copper Alloyed Nanowires for High-Efficiency Acidic Hydrogen Evolution and Methanol Oxidation","authors":"Shasha Ye, Zhenbo Zhang, Jiayi Wu, Yiyuan Ren, Xuan Wang, Tingyu Lu, Lei Chen, Dongmei Sun, Yawen Tang","doi":"10.1002/cctc.202600018","DOIUrl":"https://doi.org/10.1002/cctc.202600018","url":null,"abstract":"<div>\u0000 \u0000 Platinum (Pt)-based materials are the state-of-the-art catalysts for the methanol oxidation reaction (MOR) and the hydrogen evolution reaction (HER), yet their industrial application is hindered by limited activity and stability, which necessitates the development of effective strategies to address the activity-stability challenge. Alloying platinum with copper can effectively regulate the electronic states of active sites via synergistic and strain effects, thereby improving the electrocatalytic performance, while morphology controlling remains the intrinsic limitation. In this study, by using nicotinamide as the morphology controller, the Pt–Cu alloy nanoparticles were designed via a nicotinamide-mediated self-assembly strategy to fabricate one-dimensional (1D) nanowires (NWs). Benefiting from the morphology display and electronic structure regulation induced by the alloying effect, the as-prepared Pt1Cu1 NWs are endowed with sufficient active site accessibility, high atom utilization, and excellent robustness, thereby boosting their electrocatalytic performance. Consequently, Pt1Cu1 NWs exhibit excellent HER performance with a low overpotential (8 mV at 10 mA cm−2), and long-term stability in 0.5 M H2SO4. Furthermore, Pt1Cu1 NWs also present superior MOR activity with a high peak current density of 564 mA mgPt−1 in 0.5 M H2SO4 + 1 M CH3OH, outperforming commercial Pt black. This work provides an innovative strategy for the design of high-efficiency Pt–Cu alloy catalysts toward highly effective HER and MOR.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Tailoring B-Doped Co(OH)x Nanosheets for Quasi-Homogeneous Catalytic Hydrogenation of 4-Nitrophenol 裁剪b掺杂Co(OH)x纳米片用于4-硝基苯酚的准均相催化加氢

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-24 DOI: 10.1002/cctc.70680

Sunglun Kwon, Han Kyeol Bae, Jae Hyeon Nam, Juyeon Chang, Jong Hyeon Lee

{"title":"Tailoring B-Doped Co(OH)x Nanosheets for Quasi-Homogeneous Catalytic Hydrogenation of 4-Nitrophenol","authors":"Sunglun Kwon, Han Kyeol Bae, Jae Hyeon Nam, Juyeon Chang, Jong Hyeon Lee","doi":"10.1002/cctc.70680","DOIUrl":"https://doi.org/10.1002/cctc.70680","url":null,"abstract":"This study introduces a quasi-homogeneous catalytic strategy employing exfoliated transition-metal hydroxide nanosheets (M(OH)x NS) for the efficient hydrogenation of 4-nitrophenol. NaBH4 treatment dramatically induced the fast boron-incorporation into the M(OH)x NS—a process not observed on bulk M(OH)x. The B-doped cobalt hydroxide nanosheets (Co(OH)x·B) exhibit remarkable catalytic performance by maximizing nanosheet dispersion in solution and enabling regeneration of active sites. Notably, Co(OH)x·B achieves a high activity factor of 7197 s−1g−1, significantly outperforming the c-Pt/C catalysts (248 s−1g−1). It also showed an apparent rate constant of 0.57 min−1 and a turnover frequency of 129.55 mmol gCo−1min−1, surpassing bulk Co(OH)2, Co2B, and even c-Pt/C. To elucidate the origin of this high catalytic efficiency, Raman spectroscopy revealed that the boronation process partially reduces Co2+ to Coδ+ within the Co(OH)2 NS, accompanied by the removal of lattice –OH. The partial reduction generates coordinatively unsaturated Coδ+ sites that favor hydride (H−) adsorption, thereby promoting hydrogenation. These findings highlight how boronation-induced electronic modulation enhances catalytic activity by creating distinct active sites. The 2D structure, bridging robust heterogeneous and accessible homogeneous catalysis, renders the mechanism broadly applicable. These findings elucidate boronation-induced electronic modulation and establish a general design principle for integrating heterogeneous and homogeneous catalysis using 2D nanosheets.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70680","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bimetallic Cu-In Catalysts for the Electroreduction of CO to C2+ Products 电还原CO制C2+产物的双金属Cu-In催化剂

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-24 DOI: 10.1002/cctc.70679

Floriane A. Rollier, Bianca Ligt, Marijn Cuijpers, Emiel J.M. Hensen

{"title":"Bimetallic Cu-In Catalysts for the Electroreduction of CO to C2+ Products","authors":"Floriane A. Rollier, Bianca Ligt, Marijn Cuijpers, Emiel J.M. Hensen","doi":"10.1002/cctc.70679","DOIUrl":"https://doi.org/10.1002/cctc.70679","url":null,"abstract":"Copper-based electrodes are widely used to catalyze the electrochemical reduction of CO2 (CO2RR) and CO (CORR) to multi-carbon (C2+) products. Both processes suffer from poor selectivity, yielding a mixture of products such as ethylene, ethanol, propanol, and hydrogen. Alloying copper with a second metal offers a promising strategy to steer selectivity toward desired C─C coupled products. While Cu-In catalysts have been studied for CO2RR, their performance in CORR remains largely unexplored. Herein, bimetallic Cu-In catalysts with varying molar ratios were synthesized via a one-step flame spray pyrolysis (FSP) method and compared to physical mixtures (PM) of Cu- and In-oxides as reference samples. Under CORR conditions, the Cu-only catalyst produced H2 and C2+ products, whereas the In-only catalyst predominantly formed H2 and acetate. Notably, the Cu0.82In0.18 composition exhibited contrasting C2+ selectivity: 30% for the FSP-derived sample and 60% for the PM counterpart. In situ wide-angle x-ray scattering (WAXS) revealed that FSP-prepared catalysts formed CuxIny alloys upon reduction, while PM samples retained separate phases of metallic Cu and In2O3. The isolated In2O3 in PM samples appeared inactive in CORR, whereas the CuxIny alloys in FSP-prepared Cu0.82In0.18 were detrimental to C-C coupling, suggesting that alloy formation may suppress selectivity toward C2+ products.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Selective Tandem Electrocatalytic and Thermocatalytic CO2 Reduction to Methanol Using Formic Acid as Intermediate 以甲酸为中间体的高选择性串联电催化和热催化CO2还原制甲醇

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-24 DOI: 10.1002/cctc.70682

Florian Lhostis, Nathan De Riggi, Ngoc-Tran Huan, Emmanuel Nicolas, Thibault Cantat, Marc Fontecave

{"title":"Highly Selective Tandem Electrocatalytic and Thermocatalytic CO2 Reduction to Methanol Using Formic Acid as Intermediate","authors":"Florian Lhostis, Nathan De Riggi, Ngoc-Tran Huan, Emmanuel Nicolas, Thibault Cantat, Marc Fontecave","doi":"10.1002/cctc.70682","DOIUrl":"https://doi.org/10.1002/cctc.70682","url":null,"abstract":"<div>\u0000 \u0000 Carbon capture and utilization (CCU) is a crucial strategy for mitigating emissions in industries that are challenging to defossilize. While methanol (MeOH) is a valuable chemical, its direct electroreduction from CO2 (CO2RR) remains challenging due to low selectivity and Faradaic efficiency (FE). Here, we present a novel hybrid electro-thermocatalytic tandem process that overcomes these limitations by coupling CO2 electroreduction to formic acid (FA) with FA disproportionation to MeOH. The process employs a dendritic bismuth catalyst for highly selective CO2RR to FA (FE > 90%) in a flow cell, followed by FA disproportionation using an iridium-based molecular catalyst under optimized acidic conditions (pH ≈ 0, 25 bar H2, 30°C). The thermocatalytic step achieves >90% selectivity and up to 80% yield of MeOH, even at low FA concentrations (1 M). Despite compatibility challenges between the alkaline CO2RR and acidic disproportionation steps, sequential coupling demonstrates an overall selectivity of ∼90% for CO2-to-MeOH conversion. This work highlights the potential of hybrid processes for efficient CO2 valorization; however, further optimization is necessary to enhance FA concentration and catalyst recyclability for industrial scalability.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 6","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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