Article
Green & Sustainable Science & Technology
Zhipeng Tian, Xiaoxin Chen, Tao Liu, Junyao Wang, Chao Wang, Riyang Shu, Jianping Liu, Ying Chen
Summary: Selective hydrodeoxygenation (HDO) of phenolic compounds derived from pyrolysis lignin-oil is a promising route for high-value utilization of biomass-derived products. In this study, an optimized Co/1 K-Al2O3 catalyst achieved high conversion and selectivity in the HDO of guaiacol. Highly dispersed Co particles provided more active sites and improved the chemisorption of guaiacol molecules, enhancing HDO activity. Doping K species into the Al2O3 support resulted in decreased acid sites and eliminated strong acid sites, preventing unwanted conversion of cyclohexanol to byproduct cyclohexane. Proper acid sites and strength maximized the selectivity of cyclohexanol during selective HDO of guaiacol. Additionally, good alkyl cyclohexanol selectivities were observed in selective HDO reactions using other phenols as substrates with Co/1 K-Al2O3 catalyst.
Article
Chemistry, Physical
Penghui Yan, Eric Kennedy, Michael Stockenhuber
Summary: Ni-Fe catalysts prepared by different impregnation techniques were studied for their activity in the hydrodeoxygenation of guaiacol and hydrogenation of toluene. The study found that the ratio of Ni/Fe significantly influences the hydrodeoxygenation activity, with a catalyst having a Ni/Fe mass ratio of 3.3 exhibiting the highest performance.
JOURNAL OF CATALYSIS
(2021)
Article
Agricultural Engineering
Yan-qing Song, Sonil Nanda, Wen-jie Cong, Jie Sun, Guo-hua Dong, Aneta Magdziarz, Zhen Fang, Ajay K. Dalai, Janusz A. Kozinski
Summary: Cotton stalk can be effectively gasified to produce H2 using Ni-La based catalysts in subcritical and supercritical water. Optimized conditions can significantly increase the H2 yield, and the Ni-La/SBC materials not only realize the reuse of spent bleaching clay but also effectively promote the hydrothermal gasification of agricultural wastes.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Physical
Jian Wang, Jiarui Zhao, Junhong Fu, Cuilan Miao, Songyan Jia, Peifang Yan, Jiahui Huang
Summary: This study investigates the selectivity of metal oxide supported Pt catalysts in the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF). It is found that Pt catalyst supported on basic metal oxide MgO shows higher selectivity for BHMF, while Pt catalyst supported on acidic metal oxide TiO2 exhibits lower selectivity. The chemisorption of HMF on these catalysts indicates that the basic sites of metal oxides promote BHMF selectivity, while the acidic sites favor the adsorption of C-C group of HMF, reducing the BHMF selectivity. The cooperation between basic sites and Pt atoms is proposed to enhance the selectivity for BHMF. Comprehensive studies on reactivity, recyclability, stability, and solvent effect of the Pt/MgO catalyst are also conducted.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Engineering, Environmental
Huarui Wang, Shen-ao Wang, Longhui Guo, Congzhen Qiao, Yajie Tian
Summary: By using hierarchical nanosponge ZSM-5 supporting Ni catalyst, the effect of volumes and substituents on phenolics is explored. The Ni/NPZ catalyst with hierarchical pores and highly dispersed metal species shows enhanced adsorption of phenolics and adsorption/transfer of hydrogen, resulting in higher catalytic activity than the reference micropores catalyst Ni/CZ. Phenolics with large volumes such as 4-propylphenol exhibit lower conversion rates than phenol and anisole through sequenced hydrogenation and deoxygenation procedures. Deoxygenation occurs first on guaiacol and 2,6-dimethoxyphenol due to steric resistance, followed by hydrogenation of aromatic rings. Interestingly, the scission of C-C bonds occurs at 2,6-ditertbutylphenol by electron transfer between tertbutyl and aromatic ring, improving their initial conversion.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Swathi Mukundan, Ramesh Kumar Chowdari, Jorge Beltramini
Summary: This study successfully converted softwood lignin derived from black liquor into industrially important aromatic compounds through efficient catalytic hydrodeoxygenation. The activated carbon supported NiMoS2 catalyst exhibited good stability and selectivity, while the addition of ZrO2 was able to regulate the acidity of the catalyst.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Energy & Fuels
Asma Zitouni, Redouane Bachir, Wahiba Bendedouche, Sumeya Bedrane
Summary: Bio-based difurfurylidene acetone was utilized as a renewable feedstock for the production of jet fuel range hydrocarbons through the hydrodeoxygenation process. By examining the Si/Zr ratio and Ni content, excellent results in terms of activity and selectivity were achieved towards the formation of bio-jet fuel range hydrocarbons C13-C16. The catalyst's performances were found to be influenced by the nature and the strength of the support acidity, as well as the metal-support interaction.
Article
Chemistry, Physical
Ivan V. Shamanaev, Irina A. Shamanaeva, Ekaterina V. Parkhomchuk, Galina A. Bukhtiyarova
Summary: Ni-phosphide catalysts on SAPO-11 were studied for the hydrodeoxygenation-isomerization of methyl palmitate. The properties of the catalysts synthesized using different methods strongly influenced their activity, and the highest activity was obtained with 7% Ni2P/SAPO-11 prepared by liquid phosphidation.
Article
Energy & Fuels
Yuxiang Liu, Hai Yu, Yingying Fu, Xinchun Liu, Delin Guo, Shuo Li, Shuo Tao, Yuchao Lyu, Xiaosheng Wang, Hailong Yu, Shitao Yu
Summary: An efficient hydrodeoxygenation catalyst (Pt/Beta) was designed to improve the quality of bio-oil by removing oxygen-containing functional groups. Hierarchical hollow Beta molecular sieves were prepared through alkaline treatment and the use of surfactants. Competitive adsorption of phenol on acid and metallic sites was observed on the Pt/Beta catalysts, with acid sites of higher acidity having stronger adsorption ability.
Article
Chemistry, Physical
Tianhao Hu, Sabrina M. Gericke, Xiao Tong, Dmytro Nykypanchuk, Tove Kristensen, Christian Hulteberg, Dario Stacchiola, Sara Blomberg, Ashley R. Head
Summary: The conversion of biomass to transportation fuels and value-added chemicals is a promising method to reduce the reliance on fossil fuels, and Mo-based catalysts have been shown to be highly active in this process. This study investigates the adsorption behavior of an alumina-supported mixed nickel molybdenum oxide catalyst and finds that molybdenum oxide controls the adsorption and reactivity of the surface species with a cooperative effect by nickel.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Energy & Fuels
Pojawan Aiamsiri, Dusadee Tumnantong, Boonyawan Yoosuk, Chawalit Ngamcharussrivichai, Pattarapan Prasassarakich
Summary: This research investigated the performance of unsupported and γ-Al2O3 supported Ni-Mo catalysts for palm oil deoxygenation to biohydrogenated diesel. It was found that the hydrothermal method for preparing 0.2-NiMoS2 catalyst was efficient, while the H-NiMoS2/γ-Al2O3-0.2 catalyst prepared using a one-step hydrothermal method showed good HDO activity. Both catalysts could be reused for at least three cycles while maintaining good performance.
Article
Chemistry, Physical
Hadi Ali, Tom Vandevyvere, Jeroen Lauwaert, Sushil Kumar Kansal, Shunmugavel Saravanamurugan, Joris W. Thybaut
Summary: This study investigates the hydrodeoxygenation (HDO) activity of anisole using Ni catalysts supported on mixed metal oxide supports containing Nb-Zr and Ti-Zr. It was found that Ni/Ti1Zr4 and Ni/Nb1Zr4 catalysts, with more oxygen vacancy sites, exhibited higher HDO activity and selectivity towards benzene.
CATALYSIS COMMUNICATIONS
(2022)
Article
Chemistry, Applied
R. Rios-Escobedo, E. Ortiz-Santos, J. A. Colin-Luna, J. N. Diaz de Leon, P. del Angel, J. Escobar, J. A. de los Reyes
Summary: This study aimed to determine the carrier effect on anisole hydrodeoxygenation on 5 wt% Ni catalysts supported on TiO2 and TiO2-ZrO2 carriers, with a Ru-doped catalyst also tested. Results showed that Ru incorporation promoted Ni reducibility and initial reaction rate, favoring benzene selectivity over Ni/TiO2. Ni/TiO2-ZrO2 exhibited higher HDO activity and enhanced acidity compared to Ni/TiO2, resulting in a fully hydrogenated compound (cyclohexane) yield.
TOPICS IN CATALYSIS
(2022)
Article
Energy & Fuels
Hamed Taghvaei, Ali Moaddeli, Ali Khalafi-Nezhad, Adolfo Iulianelli
Summary: Nickel modified Al-containing MCM-41 nanoparticles were synthesized with Si/Al molar ratios ranging from 10 to 60 by direct insertion of aluminum at room temperature followed by wet impregnation. The synthesized catalysts showed tunable acidity and pore diameter, with both Ni and Al playing important roles in the hydrodeoxygenation of anisole. Phenol and benzene were the major products, with the catalyst displaying high stability and activity during 600 minutes of reaction time.
Article
Chemistry, Inorganic & Nuclear
Yunpeng Zhang, Jingwen Zhao, Guoli Fan, Lan Yang, Feng Li
Summary: This study focuses on the development of a hierarchical flower-like nitrogen-doped carbon layer-coated bimetallic Ni-Co nanoparticles (NixCo@NC@C) for catalytic hydrodeoxygenation (HDO) of biomass. The as-fabricated Ni3Co@NC@C catalyst demonstrates superior catalytic activity and high structural stability due to the presence of abundant defective oxygen vacancies and electron-rich Co-0 species on its surface. The findings provide a promising strategy for constructing low-cost and robust carbon-supported bimetallic catalysts for the HDO of lignin-derived derivatives.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Applied
Shaozhong Li, Limin Guo, Tatsumi Ishihara
Article
Chemistry, Physical
Shaozhong Li, Yu Wang, Bin Yang, Limin Guo
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Engineering, Environmental
Yu Wang, Dengyao Yang, Shaozhong Li, Lingxia Zhang, Guanyu Zheng, Limin Guo
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Materials Science, Multidisciplinary
Yongke Hu, Jiawei Xia, Jin Li, Huaju Li, Yanxing Li, Shaozhong Li, Chuansong Duanmu, Bindong Li, Xin Wang
Summary: A highly efficient nitrogen-doped carbon black-supported PdBi alloy nanocatalyst has been developed for the direct oxidative esterification of alcohols, displaying outstanding catalytic performance, broad substrate scope, and easy recyclability. The catalyst's superior activity is attributed to its unique structure involving synergetic electronic effects between Pd and Bi, surface modulation by acidification and N doping, and efficient adsorption of reactants. This study offers a promising eco-friendly catalytic system with potential industrial applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Shaozhong Li, Qing Guo, Jin Li, Yongke Hu, Jiayu Lin
Summary: Experimental results showed that the weight ratio of Al2O3 and ZnO affected the morphology of the mesoporous AlZnO supports and surface properties of the mesostructured Cu/AlZnO catalysts. Meanwhile, ZnO added into catalysts increased the strength of surface basicity and the surface concentration of Zn species, which promoted the catalytic activity of CO2 hydrogenation to methanol. The well mesostructure heightened the stability of supported Cu catalyst due to the high dispersion of Cu nanoparticles.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Qing Guo, Shaozhong Li, Jin Li, Yongke Hu, Chuansong Duanmu
Summary: Research has shown that optimizing the microstructure and surface properties of mesostructured Cu-ZnO/Al2O3-ZrO2 (CZAZ) catalysts, especially by adjusting the weight ratio of Al2O3 and ZrO2, can improve the catalytic performance of CO2 hydrogenation to methanol. The addition of ZrO2 enhances the catalyst's basic surface, while smaller Cu particles increase the interfaces of Cu with ZnO, thereby improving the selectivity to methanol.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Qing Guo, Shaozhong Li, Jin Li, Yongke Hu, Yanxing Li
Summary: CO selective methanation is a reliable and efficient method for deep CO removal from H-2-rich reformate gases in proton exchange membrane fuel cell (PEMFC). The addition of SiO2 into Ni-ZrO2 catalysts increased the specific surface areas and dispersion of metallic Ni, leading to higher CO adsorption quantity and improved conversion at low temperature. SiO2 also weakened the surface basicity of the catalyst, decreasing CO2 adsorption strength and quantity, which inhibited CO2 methanation and resulted in higher selectivity for CO methanation.
Article
Chemistry, Multidisciplinary
Shaozhong Li, Qing Guo, Jin Li, Yongke Hu
Summary: This study investigated the mechanism of N-alkylation reaction using catalysts with different acidity and basicity, revealing that the surface properties of the catalysts influenced the reaction and had different effects on the generation and conversion of imine species.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Tan Guo, Qing Guo, Shaozhong Li, Yongke Hu, Shan Yun, Yunhua Qian
Summary: This work investigates the effect of surface basicity on CO2 hydrogenation to methanol by preparing catalysts with different surface basicity. The results show that catalysts with strong surface basicity exhibit higher activity and selectivity, primarily through enhanced CO2 conversion and methanol selectivity.
JOURNAL OF CATALYSIS
(2022)
Article
Materials Science, Multidisciplinary
Shaozhong Li, Tan Guo, Yanxing Li, Shan Yun, Haiqing Xu, Huaju Li, Aibin Huang
Summary: Organic-inorganic lead halide perovskite materials with great opto-electronic properties and low-temperature solution processability have attracted much attention. Mesostructured perovskite solar cells (PSCs) can enhance the photovoltaic property. In this study, an Ar plasma etching method is used to modify the composition of the perovskite absorb material without changing its morphology, effectively avoiding unfavorable defects and improving charge separation efficiency. With controllable pore structure and porosity, mesostructured perovskite solar cells show an 18.7% improvement in power conversion efficiency compared to common planar-type cells.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Biochemistry & Molecular Biology
Yongke Hu, Lei Chen, Gulou Shen, Jin Li, Shaozhong Li, Huaju Li, Yanxing Li
Summary: An efficient catalytic system for the oxidation of alcohols to aldehydes/ketones has been developed, using catalytic amounts of Bi(NO3)(3) and Keto-ABNO with air as the oxidant. Various alcohols were smoothly oxidized to the corresponding products under mild conditions, achieving satisfactory yields without the use of a ligand or base.
Article
Chemistry, Physical
Ge Yang, Jinyan Xiong, Mengjie Lu, Weiming Wang, Wei Li, Zhipan Wen, Shaozhong Li, Weijie Li, Rong Chen, Gang Cheng
Summary: Photocatalytic CO2 reduction into valuable fuel and chemical production is a promising strategy to address the issues of increasing greenhouse gases and sustainable energy shortage. A composite photocatalysis system can enhance charge separation and transfer, leading to efficient CO2 photoreduction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Energy & Fuels
Jinyan Xiong, Xueteng Zhu, Zhangjing Chen, Yinan Ren, Weiming Wang, Chao Han, Weijie Li, Shaozhong Li, Gang Cheng
Summary: In this study, a defective amine silver species-modified mesoporous TiO2 nanoparticle assembly was reported for photocatalytic CO2 reduction. The results showed that this material can enhance the photocatalytic conversion of CO2 into CH4 and CO.
Article
Chemistry, Physical
Jin Li, Qing Guo, Yu Zhao, Shaozhong Li
Summary: CO selective methanation is important for proton exchange membrane fuel cell, but CO2 methanation consumes a lot of hydrogen and reduces energy efficiency. Phosphate-modified mesostructured Al2O3-ZrO2 as Ni support was studied for CO methanation. Phosphate modification inhibited CO2 adsorption and increased CO methanation selectivity, but excessive modification weakened active sites and decreased methanation activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Organic
Yongke Hu, Shaozhong Li, Huaju Li, Yanxing Li, Jin Li, Chuansong Duanmu, Bindong Li
ORGANIC CHEMISTRY FRONTIERS
(2019)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
