Article
Chemistry, Multidisciplinary
Jinsung Kim, Hari Babu Bathula, Seokwon Yun, Yeongin Jo, Soohyeon Lee, Joon Hyun Baik, Young-Woong Suh
Summary: The mesoporous Cu-Al2O3 catalyst showed efficient and stable performance in the selective hydrogenation of FAL and HMF to furfuryl alcohol and BHMF, respectively. The results provide valuable information for the sustainable polymer industry and commercial BHMF production from HMF.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Kseniia Vikanova, Elena Redina, Gennady Kapustin, Marina Chernova, Olga Tkachenko, Vera Nissenbaum, Leonid Kustov
Summary: The use of available renewable sources for the production of organic compounds is recognized worldwide, but the development of green catalytic technologies, including catalyst synthesis and optimal process conditions, is a challenge for researchers. In this study, 2,5-bis(hydroxymethyl)furan was obtained by hydrogenation of 5-hydroxymethylfurfural using a catalytic system with 1% wt of platinum supported on ceria-zirconia mixed oxide, achieving a high yield of the desired alcohol with a slight increase in H2 pressure.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Arpna Jaryal, Battula Venugopala Rao, Kamalakannan Kailasam
Summary: This study successfully utilized photocatalysis to convert 5-hydroxymethyfurfural into high value-added chemicals, providing a new approach for the efficient conversion of lignocellulosic biomass and sustainable chemical synthesis.
Article
Engineering, Environmental
Rosine Ahishakiye, Fumin Wang, Xubin Zhang, Mingshuai Sun, Yi Zhai, Yongkui Liu, Yuzhou Wu, Mengyue Li, Mengyao Li, Qing Zhang
Summary: A novel catalyst was developed for the selective hydrogenation of HMF to DMF. The catalyst exhibited excellent catalytic performance and high DMF yield under suitable reaction conditions. The surface acidity of the catalyst and the balance between metal and metal oxide species were found to be crucial for achieving a high yield of DMF.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Wenguang Zhao, Xiaoting Zhu, Zhijuan Zeng, Jing Lei, Zexing Huang, Qiong Xu, Xianxiang Liu, Yongjun Yang
Summary: In this study, Cu-Co/N-C composites were prepared by calcination of zeolitic imidazolate frameworks (ZIFs), and they exhibited excellent catalytic performance in the hydrogenation of HMF. The high dispersion of Co nanoparticles and the synergistic catalysis of Cu-Co sites were found to contribute to the increase in BHMF selectivity. Moreover, by controlling the calcination temperature, the aggregation of Co nanoparticles and catalytic activity could be regulated.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Physical
Jun Xia, Shenqi Jiang, Jingyi Liu, Wei Yang, Zhongyang Qiu, Xiaoyan Liu, Aiyong He, Dengchao Li, Jiaxing Xu
Summary: In this study, a highly HMF-tolerant strain, Bacillus subtilis HA70, was isolated as a whole-cell biocatalyst for the reduction of HMF. Under optimized conditions, 350 mM of HMF was transformed into BHMF with a yield of 91.2% and a selectivity of 99%. The strain also exhibited selective conversion of furfural to furfuryl alcohol with a yield of 97.6%.
MOLECULAR CATALYSIS
(2023)
Review
Chemistry, Multidisciplinary
Cong Chien Truong, Dinesh Kumar Mishra, Sang Hyeok Ko, Yong Jin Kim, Young-Woong Suh
Summary: This review provides a comprehensive overview of the development of heterogeneous metal catalysts for the transformation of 5-HMF to BHMTHF. It covers various aspects including the design, preparation, recyclability, and reaction conditions of hydrogenating catalysts. The review also highlights the assessment of cooperative catalysts in the one-pot cascade and the prospects and challenges for the chemo-selective hydrogenation of 5-HMF.
Article
Chemistry, Physical
Wenguang Zhao, Zexing Huang, Liu Yang, Xianxiang Liu, Hongye Xie, Zixuan Liu
Summary: The synthesis of a bimetallic catalyst (Ni-Co) with efficient catalytic activity towards the hydrogenation of HMF into BHMF and DMF at low temperature and pressure conditions was successfully achieved. The characterization of the catalyst played a key role in understanding the synergistic catalytic mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Raju Kumar, Hsin-Hui Lee, En Chen, Yuan-Peng Du, Chan-Yi Lin, Warot Prasanseang, Thanasak Solos, Kittisak Choojun, Tawan Sooknoi, Rui-Kun Xie, Jyh-Fu Lee, Po-Wen Chung
Summary: The selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF), using an atomically dispersed supported copper catalyst, was investigated. The Cu(x)HTO catalysts were prepared by coprecipitating metal precursors in a methanolic solution under a specific pH, and characterized using various techniques. The results revealed the presence of atomically dispersed copper on the HTO surface, with strong hydrogenation activity towards HMF.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Zexing Huang, Zhijuan Zeng, Xiaoting Zhu, Wenguang Zhao, Jing Lei, Qiong Xu, Yongjun Yang, Xianxiang Liu
Summary: In this study, a boehmite-supported copper-oxide catalyst was used for the selective hydrogenation of 5-hydroxymethylfurfural into BHMF via catalytic transfer hydrogenation. Ethanol replaced high-pressure hydrogen as the hydrogen donor, achieving up to 96.9% BHMF selectivity. CuO was found to be crucial for high BHMF selectivity, and the reaction temperature influenced the product distribution. The catalyst deactivated due to CuO reduction by ethanol, but its activity could be recovered through calcination in air.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Zixuan Liu, Zexing Huang, Wenguang Zhao, Xianxiang Liu
Summary: In this study, a carbon nanotubes-supported metallic nickel and nickel oxide catalyst was prepared and showed high selectivity in the catalytic transfer hydrogenation of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan. A possible synergistic catalytic mechanism was proposed to explain the observed results.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Aiyong He, Lei Hu, Yameng Zhang, Yetao Jiang, Xiaoyu Wang, Jiaxing Xu, Zhen Wu
Summary: A novel zirconium-carbon coordination catalyst (Zr-HTC) was successfully synthesized, showing outstanding catalytic activity for the selective synthesis of BHMF and excellent catalytic stability. Zr-HTC could effectively convert a wide range of carbonyl compounds to the relevant products, offering a new viewpoint for developing practical zirconium-containing coordination catalysts for the selective synthesis of valuable chemicals via catalytic transfer hydrogenation.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Mariappan Mani, Ganesh Govind Kadam, Lakhya Jyoti Konwar, Asit Baran Panda
Summary: A study has found that a Ru-decorated porous melamine polymer shows promising potential as an active catalyst for the selective hydrogenation of aqueous 5-hydroxymethylfurfural to 2,5-bis-(hydroxymethyl)furan. The catalyst outperforms various benchmark Ru catalysts in terms of activity and desired product selectivity, thanks to its porous structure and unique surface chemistry. The polymeric catalyst is also reusable and maintained good performance during multiple recycles.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Yameng Zhang, Xinming Shen, Lei Hu, Zhen Wu, Xiaoyu Wang, Yetao Jiang
Summary: In this study, a new zirconium-lignin hybrid catalyst (Zr-EL) was prepared using enzymatic hydrolysis lignin (EL) as a cheap organic ligand. The Zr-EL catalyst showed superior catalytic activity and stability for the MPV reduction of HMF to BHMF. Moreover, it also exhibited excellent applicability in converting various ketone and aldehyde compounds to alcohols.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Zuojun Wei, Yuran Cheng, Kuo Zhou, Yue Zeng, En Yao, Qing Li, Yingxin Liu, Yong Sun
Summary: The simultaneous reductive amination of C=O and C-OH in HMF to form BAMF is challenging, and this study demonstrates methods for achieving high yields through a stepwise reductive amination process.
Article
Chemistry, Applied
Maddalena Zoli, Daniela Roldan, Hilmar Guzman, Micaela Castellino, Angelica Chiodoni, Katarzyna Bejtka, Nunzio Russo, Simelys Hernandez
Summary: Conversion of CO2 into high-value-added products is attracting increasing attention as a substitute for fossil-based resources and in addressing the environmental crisis. In this study, a noble and scalable Cu2O-SnO2 photo-electrocatalyst was successfully synthesized and characterized, which effectively protected unstable Cu+1 species from photo-corrosion. The role of SnO2 as a stabilizer was confirmed through chronoamperometry tests and XPS analysis. CO2 photo-electroreduction tests using an optimized catalytic ink demonstrated the prevalent production of CO and formate, with high Faradaic efficiencies and good system stability. Sunlight illumination was found to play a crucial role in hindering H2 evolution and promoting the formation of >=C1+ products.
Article
Chemistry, Physical
Lisa Royer, Antoine Bonnefont, Tristan Asset, Benjamin Rotonnelli, Juan-Jesus Velasco-Velez, Steven Holdcroft, Simon Hettler, Raul Arenal, Benoit Pichon, Elena Savinova
Summary: Transition metal oxides show promise as cost-effective catalysts for oxygen evolution reaction (OER) in alkaline media. However, understanding the transformations occurring under harsh oxidative OER conditions is crucial for developing stable and active catalysts. This study used NEXAFS spectroscopy to investigate the redox transformations of core-shell Fe3O4@CoFe2O4 oxide nanoparticles over a range of potentials. The analysis revealed that the Fe3O4 core significantly influences the surface chemistry of the CoFe2O4 shell during OER, with the Co (II) structure preserved even at high potentials where Co (II) is expected to be oxidized into Co (III), while Fe (II) in the core undergoes reversible oxidation to Fe (III).
Article
Chemistry, Multidisciplinary
Alessandro Sanginario, Simelys Hernandez
Summary: The demand for new electrochemical reaction technologies and related engineering aspects is increasing due to the shift towards green technologies and the use of renewable electricity sources. Research on new electro-catalytic pathways to improve efficiency and reduce costs is crucial. Electrochemical impedance spectroscopy (EIS) is extensively used in the study of electrocatalysts and electrochemical systems, particularly for diagnostics in the field of electrocatalysis. Its application is more prevalent in mature technologies like batteries, fuel cells, and biosensors.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Physical
Iqra Zubair Awan, Phuoc Hoang Ho, Giada Beltrami, Olinda Gimello, Thomas Cacciaguerra, Pierrick Gaudin, Nathalie Tanchoux, Stefania Albonetti, Annalisa Martucci, Fabrizio Cavani, Didier Tichit, Francesco Di Renzo
Summary: Ethanol is used as a renewable hydrogen-donor for the conversion of a lignin model molecule. Noble metal-free porous mixed oxides derived from Cu-Ni-Al and Cu-Ni-Fe layered double hydroxide (LDH) precursors act as heterogeneous catalysts for the hydrogen transfer and hydrogenation reactions. The activity and selectivity of the catalysts are influenced by the Cu/(Cu+Ni) ratio and the trivalent cation (Al or Fe), as well as the cleavage of lignin-like phenylether bonds. The composition of the LDH precursors has a significant impact on the structural and textural properties of the catalysts.
Article
Engineering, Environmental
Dawei Yao, Phuoc Hoang Ho, Rojin Feizie Ilmasani, Johann C. Wurzenberger, Thomas Glatz, Derek Creaser, Louise Olsson
Summary: In this study, a novel form of Pd/SSZ-13 was developed by freeze-drying method, which showed better stability compared to the sample synthesized by the common process. Characterization measurements revealed that the Pd sites on the freeze-dried sample had stronger resistance to CO-induced agglomeration. In-situ characterization and kinetic modeling demonstrated that the freeze-dried Pd/SSZ-13 had more ion-exchanged Pd sites, providing greater resistance towards CO-induced Ostwald ripening process and suppressing the sintering behavior under high CO concentration.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Francesco Maluta, Federico Alberini, Alessandro Paglianti, Giuseppina Montante
Summary: In this work, the authors present original data on bubble size distribution in a gas-liquid stirred tank obtained through a combination of experimental and computational methods. The aim is to contribute to the development of fully predictive methods for the design and scale-up of chemical and biochemical gas-liquid reactors. The paper discusses the variables that affect mass transfer in industrial aerobic fermentations, with a special focus on bubble size distribution, gassed power consumption, and gas cavities. The latest developments of Two Fluid and Population Balance models for obtaining fully predictive results on gas-liquid mixing in stirred tanks are also discussed. The results highlight the importance of accurately predicting bubble size in the impeller zone for reliable hydrodynamics results in aerated stirred tanks.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Nipon Deka, Travis E. Jones, Lorenz J. Falling, Luis-Ernesto Sandoval-Diaz, Thomas Lunkenbein, Juan-Jesus Velasco-Velez, Ting-Shan Chan, Cheng-Hao Chuang, Axel Knop-Gericke, Rik V. Mom
Summary: In the search for rational design strategies for OER catalysts, understanding the link between catalyst structure and activity and stability is crucial. Highly active catalysts like IrO x and RuO x undergo structural changes under OER conditions, requiring consideration of the operando structure of the catalyst. X-ray absorption spectroscopy (XAS) and electrochemical scanning electron microscopy (EC-SEM) were used to study the activation of amorphous and crystalline ruthenium oxide under OER conditions. The data showed that the activation of the oxygen lattice, especially in amorphous RuO x , is key for its high activity and low stability.
Article
Green & Sustainable Science & Technology
Juan-Jesus Velasco-Velez, Jeffrey Poon, Dunfeng Gao, Cheng-Hao Chuang, Arno Bergmann, Travis E. Jones, Shu-Chih Haw, Jin-Ming Chen, Emilia Carbonio, Rik V. Mom, Danail Ivanov, Rosa Arrigo, Beatriz Roldan Cuenya, Axel Knop-Gericke, Robert Schloegl
Summary: Advanced in situ X-ray absorption spectroscopy characterization of electrochemically co-electrodeposited bi-element copper alloy electrodes shows that zinc yields the formation of a stable cationic Cu species during the electroreduction of CO2 at high cathodic polarization. In contrast, the formation/stabilization of cationic Cu species in copper oxides, or doping Cu with another element, like Ni, is not possible. It is found that the pure and mixed Cu:Zn electrodes behave similarly in term of electrocatalytic selectivity to multi-carbon products.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Engineering, Chemical
Hanh N. H. Nguyen, Co D. D. Pham, Khoa D. D. Nguyen, An T. T. Tran, Nhan T. H. Le, Phuoc H. H. Ho, Ha V. V. Le
Summary: Nata de coco produced via coconut water fermentation using Acetobacter xylinum is an effective adsorbent for metal cations due to its high crystallinity, porosity, and abundant electron-rich hydroxyl groups. It can efficiently remove Pb2+ and Fe3+ ions, with smaller particle size leading to higher adsorption efficiency.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Phuoc Hoang Ho, Jieling Shao, Dawei Yao, Wei Di, Derek Creaser, Louise Olsson
Summary: Phosphorus poisoning is a major cause of deactivation in diesel oxidation catalysts, affecting the catalytic performance for CO, C3H6, C3H8, and NO oxidation. The impact of phosphorus depends on the type of active phase and support material used. Phosphorus loading had a greater influence on zeolite-based catalysts, leading to the formation of phosphorus oxides that blocked the catalyst surface, while in alumina-based catalysts, phosphorus mainly reacted with the support, deactivating only a part of the active noble metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
You Wayne Cheah, Rawipa Intakul, Muhammad Abdus Salam, Joby Sebastian, Phuoc Hoang Ho, Prakhar Arora, Olov Ohrman, Derek Creaser, Louise Olsson
Summary: This study explores the liquefaction of Kraft lignin assisted by pyrolysis oil in a paraffin solvent. It is shown that the complex composition of pyrolysis oil can aid the depolymerization of lignin and suppress the formation of char. The functional groups present in pyrolysis oil, such as hydroxyl, methoxy, and propyl groups, have a synergistic effect in stabilizing reactive lignin intermediates. A reaction network is proposed to explain why the co-processing of pyrolysis oil and Kraft lignin completely suppressed solid char formation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Giulia Cuatto, Maddalena Zoli, Mario Gallone, Hilmar Guzman, Micaela Castellino, Simelys Hernandez
Summary: A facile, reproducible, and scalable wet precipitation method was optimized to synthesize Cu2O nanocubes with tuneable morphology and photocatalytic properties. The size of Cu2O crystallites was controlled by adjusting the flow rate of the reducing agent, resulting in enhanced photo-electrocatalytic activity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Giancosimo Sanghez de Luna, Patrick Zeller, Eyluel Oeztuna, Francesco Maluta, Andrea Canciani, Francesca Ospitali, Phuoc H. Ho, Alessandro Paglianti, Axel Knop-Gericke, Giuseppe Fornasari, Juan J. Velasco-Velez, Patricia Benito
Summary: The renewable electricity-driven electrocatalytic hydrogenation of biomass-derived furanic compounds was investigated in this study. 3D CeO2-based catalysts were used for the electrocatalytic hydrogenation of 5-hydroxymethylfurfural (HMF) in electrolytes, resulting in the selective production of 2,5-bishydroxymethylfuran (BHMF). Through characterization and in situ studies, it was found that the Cu-CeO2 electrocatalysts had selective reaction sites and high electrical conductivity, enabling efficient hydrogenation in more concentrated electrolytes.
Article
Chemistry, Multidisciplinary
Khoa D. Nguyen, Nhi T. Vo, Khanh T. M. Le, Khanh V. Ho, Nam T. S. Phan, Phuoc H. Ho, Ha V. Le
Summary: In this study, two defective Zr-based metal-organic frameworks (MOFs), MOF-808-OH and MOF-808-NH2, were synthesized by partially replacing the building block of 1,3,5-benzenetricarboxylate with 5-hydroxyisophthalate and 5-aminoisophthalate, respectively. The defective materials were characterized by PXRD, SEM, nitrogen physisorption at 77 K, and TGA. The presence of defect sites in the MOFs significantly increased the adsorption capacity for anionic organic dyes and chromium (vi) species.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Applied
Alexander Misol, Ilenia Giarnieri, Francesca Ospitali, Adriana Ballarini, Jose Jimenez-Jimenez, Enrique Rodriguez-Castellon, Francisco Martin Labajos, Giuseppe Fornasari, Patricia Benito
Summary: The hydrogenation of CO2 over Ru catalysts is structure sensitive, and the selectivity of the process can be driven by the Ru particles and support features. This study prepared and tested Ru-based MgAl-HT derived catalysts with different Ru loadings and La3+ promotion. The results showed that the addition of La3+ did not significantly affect the performance, and Ru-HT derived catalysts performed poorly compared to Ni-HT derived catalysts.