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Article
Chemistry, Multidisciplinary
Yunxiang Li et al.
Summary: The rational design of dual-linker zeolitic tetrazolate framework-engaged strategy successfully constructed an Ni-NC(AHP) electrocatalyst with enhanced mesoporosity and more available surface area, promoting mass transport and affording abundant accessible single-Ni sites.
ADVANCED MATERIALS
(2022)
Article
Agricultural Engineering
Jiajun Yu et al.
Summary: This study proposes a simple and rapid method to synthesize a catalyst for lignin catalytic pyrolysis, which shows excellent deoxidation and retention of lignin side chain aliphatic hydrocarbons. The targeted attack of Pine-Mo2C catalyst on C-O is the reason for its efficient deoxidation.
BIORESOURCE TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Dong Xia et al.
Summary: This review focuses on carbon-based and carbon-supported nanocatalysts for biomass conversion, discussing catalyst types, synthesis, optimization, mechanisms, and three-dimension catalytic structures.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Wenting Fang et al.
Summary: This study demonstrates that introducing alkali earth metal into aluminum phosphate catalyst can tune the acidity and basicity, thus improving the hydrogenation selectivity and reaction yield. The modified catalyst shows good stability and reusability, indicating its potential application in biomass refining processes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Ya-Ru Shao et al.
Summary: This study successfully synthesized a highly active and stable heterojunction catalyst and achieved efficient hydrogenation of biomass-derived levulinic acid to high-value gamma-valerolactone under mild conditions. The carbon-encapsulated structure of the catalyst and the Co-ZnO interfacial interaction played important roles in the catalytic activity and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yehong Wang et al.
Summary: This study presents a sustainable approach for producing aromatics through a biomass-derived carbon-negative route. An industrial aqueous oxygenate mixture is used as feedstock to achieve a high aromatic yield of up to 50%. The use of Zn modified ZSM-5 zeolites as catalysts plays a crucial role in efficiently aromatizing the oxygenates. This method provides a promising route for converting biomass into valuable chemicals towards the goal of carbon-neutrality.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yuxiao Feng et al.
Summary: This study reports a new hierarchical micro-mesoporous zeolitic imidazolate framework-8 (ZIF-8) with core-shell superstructure (HZIF-8) for enzyme immobilization. The immobilized enzyme in HZIF-8 exhibited higher activity and substrate affinity compared to conventional microporous ZIF-8, showing improved stability and reusability. The obtained HZIF-8 also showed outstanding performance in co-immobilization of multienzyme for glucose detection.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Haitao Yu et al.
Summary: Selective hydrogenation and hydrodeoxygenation of biomass to value-added products is a crucial step in the development of renewable energy resources. In this study, nitrogen/oxygen co-doped porous carbon nanospheres were used as the host matrix to encapsulate highly dispersed Pd nanoparticles, resulting in a catalyst that exhibited excellent catalytic activity and temperature-controlled selectivity for the hydrogenation and hydrodeoxygenation of vanillin derived from biomass.
Article
Chemistry, Multidisciplinary
Peng Hao et al.
Summary: A nitrogen-doped carbon-confined CuCo bimetallic catalyst with a popcorn-like structure was developed for the selective hydrogenation of HMF to produce DMF. Under optimized conditions, 100% HMF conversion and 93.7% DMF selectivity were achieved. The catalyst exhibited carbon spheres covered by nitrogen-doped carbon nanotubes, with metal particles confined within.
FRONTIERS IN CHEMISTRY
(2022)
Article
Energy & Fuels
Qi Wang et al.
Summary: This study successfully improved the selectivity and yield of the hydrodeoxygenation reaction of palmitic acid by modifying the composition and structure of the catalyst.
Review
Energy & Fuels
El Mahdi Halim et al.
Summary: This review focuses on the recent progress in anode catalysts based on conducting polymers (CPs) materials for direct alcohol fuel cells (DAFCs). It discusses the commonly used methods for preparing metal-conducting polymer-based nanocomposites and evaluates the catalytic performances of different catalysts for the electrooxidation of methanol and ethanol reactions. The review also highlights the impact of carbon nanomaterials on the electrical properties and performance of conducting polymer supports. The development of anode materials using nanostructured conducting polymers-based support is crucial for reducing catalyst loadings and promoting the commercialization of DAFCs.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Yuenan Zheng et al.
Summary: An energy balance concept is proposed to regulate the porous structure of ordered mesoporous perovskite oxides. The experimental results show that the interaction between mesoporous La2Zr2O7 and 5-hydroxymethylfurfural is promoted by rich Lewis acid sites, active Zr species, and favorable porous structure.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Jie Zhang et al.
Summary: In this study, boron and nitrogen co-doped porous nanocarbons (BNC) were synthesized as promising metal-free catalyst materials. The resulting BNC catalysts showed controllable morphologies and tunable ratios, and exhibited outstanding hydrogenation reduction performance and acceptable recyclability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Zhi Yang et al.
Summary: In this study, a Ru/C-HPW bifunctional catalyst was used for the hydrodeoxygenation (HDO) of lignin derived compounds. The catalyst exhibited high reaction rate, good recyclability, and achieved high HDO efficiency under mild conditions.
Article
Chemistry, Multidisciplinary
Qiu-Xia Li et al.
Summary: By anchoring defective single-atomic Ni-N-3 sites to ordered micro-macroporous N-doped carbon, an enhanced CO2RR with high current density and CO selectivity has been achieved, paving the way for industrial production and commercial applications.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zhihao Yu et al.
Summary: This study presents a metal pre-chelating assisted assembly strategy to synthesize Ru@Shell-HCSs nanoreactors with preferred catalytic microenvironments for efficient hydrogenation of biomass-derived furfural. The channel-embedding structure enhances the electron-deficient property of ultrafine ruthenium clusters, leading to an accelerated tandem hydrogenation progression for enhanced 2-methylfuran generation.
Article
Energy & Fuels
Xiaomei Lei et al.
Summary: This study successfully enhanced the hydrodeoxygenation performance of Mo2N catalysts for jatropha oil conversion by synthesizing Ni-Mo2N/gamma-Al2O3 catalyst, resulting in high-quality biofuel.
Article
Chemistry, Applied
Ting-Sheng Chen et al.
Summary: This study focuses on controlling the selectivity and efficiency of oxygen-free products in catalytic hydrodeoxygenation by adjusting the Si content in the catalysts. The results show that doping Si in the catalysts improves the selectivity of oxygen-free products and enhances the deoxygenation efficiency through enhanced adsorption and ring-opening reactions of oxygen-containing intermediates.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Boyang Li et al.
Summary: This study successfully synthesized a Ru/HPNC catalyst using a versatile nano-emulsion self-assembly method, which exhibited excellent catalytic performance for the hydrogenation of LA to GVL under solvent-free conditions with outstanding reusability. The superior performance of the catalyst is attributed to its hierarchically porous structure and accessible ultrafine Ru active sites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wei Liu et al.
Summary: This study demonstrates the superior catalytic performance of a NiMo intermetallic compound (IMC) catalyst in furfural hydrodeoxygenation (HDO) to 2-methylfuran (2-MF), highlighting the decisive effect of atomically-ordered active sites on activation of oxygen-containing functional groups and product selectivity. The ordered Ni-Mo bimetallic sites in IMC facilitate the activation and cleavage of C-OH bonds in intermediates, leading to enhanced production of 2-MF, which can potentially be extended to catalytic upgrading of biomass-derived platform molecules.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Organic
Jingjing Li et al.
Summary: DFT calculations were used to study the mechanism of cascade hydrogenation-cyclization of levulinic acid into gamma-valerolactone catalyzed by half-sandwich iridium complexes. The study revealed that heterolytic hydrogen cleavage, concerted reduction, hydrogen migration, dehydration, and cyclization are key steps in the mechanism. Water acts as a hydrogen donor while counterions act as a hydrogen shuttle in the process. The presence of a double-methoxy group on the bipyridine ligand of the iridium complex increases electron density at the Ir center, leading to enhanced Ir-H bond cleavage.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Energy & Fuels
Ge Guo et al.
Summary: In this study, a catalytic system using bifunctional molybdenum oxide based supported catalyst was developed for the conversion of Kraft lignin into valuable compounds with high yield and improved calorific value. Characterization studies revealed the synergistic effect between redox sites and acid sites due to the incorporation of MoOx species. The results suggest that the catalytic system shows promising potential for high-efficiency utilization of waste lignin.
Article
Energy & Fuels
Emma Aryee et al.
Summary: This study investigated the influence of different support materials on the efficiency of hydrotreating catalyst with Ni-Mo. It was found that NiMo/CNH catalyst exhibited outstanding physicochemical properties, leading to superior hydrodesulfurization activity compared to NiMo/OCPf, NiMo/OCP, and NiMo/CNT catalysts. X-ray absorption spectroscopy analysis revealed that a distorted octahedral Mo coordination environment in carbon-supported catalysts did not always correlate with higher hydrodesulfurization and hydrodenitrogenation activities.
Article
Chemistry, Multidisciplinary
Ying Zang et al.
Summary: The research team successfully synthesized a catalyst for oxygen reduction in acidic conditions using a pyrolysis-free route, achieving outstanding performance and stability. This finding provides new insights into optimizing catalysts for practical applications and mechanistic studies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Xiaokang Yue et al.
Summary: The study demonstrates that flower-like Ni catalysts supported on mixed metal oxides exhibit excellent activity, mainly due to the large specific surface area of the support and strong interaction between the metal and support. By tuning the properties and composition of the catalyst, efficient hydrodeoxygenation catalysts can be constructed.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Xiaoyan Liu et al.
Summary: Nitrogen-doped nanocarbons are commonly used as supports for metal-heterogeneous catalytic reactions to enhance catalytic activity and stability. By selectively locating ultrafine Ru NPs on inner carbon shell and different N species on the outer shell, a high conversion rate of levulinic acid hydrogenation was achieved through the interaction of alkaline pyridinic N species as anchor points. This study sheds light on designing nanoreactors at atomic scale and investigating heterogeneous catalysis at molecular level.
Article
Chemistry, Physical
Qingqing Yuan et al.
Summary: This study used isotopic labeling experiments and H-2 NMR experiments combined with quantum chemical calculations to reveal the catalytic hydrogenation pathways involved in the conversion of levulinic acid (LA) to gamma-Valerolactone (GVL), and discovered a yet unexplored sequential deuteration route.
Article
Chemistry, Multidisciplinary
Yaowen Zhang et al.
Summary: By adjusting the Mo species content in bimetallic Ni-Mo catalysts, the optimization of guaiacol deoxygenation reaction performance can be achieved. The synergistic effect between Ni-Mo alloy sites and defective MoOx structures helps accelerate the reaction process.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Rui Zong et al.
Summary: The Pd/CFR@HZSM-5 catalysts exhibit excellent catalytic activity for the selective HDO of biomass-derived molecules, thanks to their unique high-dispersion Pd structure and abundant surface defects. Additionally, the acidic sites in the composite carrier catalyst replace the need for acidic additives in previous catalytic systems. The optimal Pd/CFR@HZSM-5(2:1) catalysts maintain good performance even after five uses and can be applied to various biomass HDO models under mild conditions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhanghui Xia et al.
Summary: A ternary Ni-Al/CoOx-1 catalyst was prepared, which showed high efficiency in synthesizing 2,5-dimethylfuran under mild reaction conditions. The addition of Al improved the stability of the structure and promoted electron transfer, enhancing the catalytic activity.
Article
Chemistry, Multidisciplinary
Liang Jiang et al.
Summary: The study focused on utilizing nitrogen-doped carbon as a catalyst for the efficient conversion of levulinic acid to gamma-valerolactone under mild conditions with low hydrogen pressure. The nitrogen-doped carbon introduced catalyst showed excellent activity and stability in selectively hydrogenating carbonyl groups.
Article
Chemistry, Physical
Yanfu Ma et al.
Summary: The local coordination environments of isolated metal atoms in single-atom catalysts (SACs) are crucial for their catalytic performance. Varying the morphology and heteroatom doping of the CeO2 support significantly affects the activity of Pt single atoms, with N doping on spherical CeO2 being more effective than P doping. N doping enhances the electron density of Pt single atoms, leading to increased hydrogen dissociation activity and hydrogen spillover, essential for promoting catalytic hydrogenation activity.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
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Tomas Cordero-Lanzac et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
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Ruoyu Fan et al.
CHEMICAL COMMUNICATIONS
(2020)
Article
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Zhuqing Fang et al.
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Chemistry, Physical
Ludek Kaluza et al.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2019)
Article
Engineering, Environmental
Dawei Liu et al.
CHEMICAL ENGINEERING JOURNAL
(2019)
Review
Chemistry, Multidisciplinary
Wenhao Luo et al.
Article
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Qusay Bkour et al.
APPLIED CATALYSIS A-GENERAL
(2018)
Article
Chemistry, Physical
Song Song et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
Article
Chemistry, Physical
Velisoju Vijay Kumar et al.
APPLIED CATALYSIS A-GENERAL
(2015)
Article
Chemistry, Physical
Konstantin Hengst et al.
APPLIED CATALYSIS A-GENERAL
(2015)
