Article
Energy & Fuels
Yueqing Wang, Hongxing Wang, Junbo Zhang, Hongyan Zheng, Long Huang, Yulei Zhu
Summary: This study investigates the impact of framework Al in different locations on the conversion of fructose to furfural using H-beta catalyst. Through different acid treatments, it was found that framework Al atoms in different sites play important roles in the formation of furfural, with Al atoms in T1 sites and intersecting channels being more encouraging for the splitting of C-C bond, and Al species in T5, T6 sites and larger straight channels being more favorable for the scission of C-O bond.
Article
Chemistry, Physical
Rui Li, Qixuan Lin, Yao Liu, Xiaohui Wang, Chuanfu Liu, Feng Peng, Junli Ren
Summary: The solvent effect on the selective production of furfural or 5-hydroxymethylfurfural (HMF) from fructose was investigated using experiments, nuclear magnetic resonance (NMR), and molecular dynamics (MD) simulation. It was found that solvent polarity and basicity played a crucial role in the selective formation of furfural and HMF. The arrangement of solvents around fructose tautomers, particularly around different C-OH, resulted in different products. High yields of furfural (76.2%) and HMF (90.5%) were achieved in γ-butyrolactone (GBL)-H2O and dimethyl sulfoxide (DMSO)-H2O solvents.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Junbo Zhang, Guoqiang Ding, Yueqing Wang, Fei Wang, Hongxing Wang, Yubo Liu, Yulei Zhu, Yongwang Li
Summary: In this study, H-Beta zeolites with different Si/Al ratios were prepared and evaluated for decarburization catalysis to produce furfural. The synergistic catalytic effect between the *BEA channel and framework-Al was found to be crucial. Fructose showed the highest FAL yield, and cellulose also had a relatively high yield.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yayati Naresh Palai, Abhijit Shrotri, Atsushi Fukuoka
Summary: Selective production of succinic acid from furfural with H2O2 over a pure Lewis acid catalyst, Sn-Beta, was reported. The optimized reaction conditions resulted in a 53% yield of succinic acid, and the catalyst was recyclable. The Sn-Beta catalyst activates furfural by coordinating to the carbonyl group, and does not activate H2O2.
Review
Chemistry, Physical
Christiaan H. L. Tempelman, Ryan Oozeerally, Volkan Degirmenci
Summary: Lignocellulosic biomass is a cheap and plentiful resource that could play a key role in sustainable chemical production. The conversion of simple sugars in lignocellulosic biomass into commercially valuable products like 5-hydroxymethyl furfural (HMF) is a significant challenge and various heterogeneous catalysts have been proposed to address this issue.
Article
Energy & Fuels
Adrian Garcia, Rita Sanchez-Tovar, Pablo J. Miguel, Elena Montejano-Nares, Francisco Ivars-Barcelo, Juan Antonio Cecilia, Benjamin Torres-Olea, Benjamin Solsona
Summary: This study demonstrates the synergistic effect of tin and zirconium for the one-pot transformation of furfural into γ-valerolactone. Furfural, a versatile product derived from lignocellulosic biomass, can be converted into valuable γ-valerolactone, which has various applications in chemicals, fuels, and solvents.
Article
Chemistry, Physical
Yongfang Zhou, Yi Shen, Xuanli Luo
Summary: The study focuses on establishing a rigorous assessment protocol for the electrochemical conversion of HMF, revealing the effects of electrolyte pH, support material properties, electrolyte impurities, and other factors on HMF conversion.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Julien Vander Steen, Florent Boissou, Michel Luhmer, Claudine Buess-Herman, Steve Baranton, Christophe Coutanceau, Thomas Doneux
Summary: The electroreduction of furfural, a platform chemical derived from lignocellulosic biomass and agricultural waste, was investigated in a Deep Eutectic Solvent (DES) unconventional medium using in-situ FTIR spectroscopy and cyclic voltammetry on gold and copper electrodes. The stability of furfural in two commonly used DES, choline chloride/urea 1:2 and glycerol 1:2, was analyzed using NMR spectroscopy, and choline-glycerol DES medium was selected. The instability of furfural in choline chloride/urea 1:2 and a specific reaction between urea and furfural were observed. The electrochemical stability of the glycerol DES and the behavior of furfural were monitored using FTIR measurements, and the reduction product, furfuryl alcohol, was identified. The influence of electrode morphology on the stability of the DES and furfural behavior was studied through the synthesis of Au/C and Cu/C nanoparticles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhaoxing Wang, Souryadeep Bhattacharyya, Dionisios G. Vlachos
Summary: In this study, a combined in silico and experimental approach was used to investigate the extraction of furfural and HMF in aqueous-organic biphasic systems. The experimental data were found to be in good agreement with the predictions from the COSMO-RS model, and a selective extraction of furfural was demonstrated using an additional extraction step. The molecular nature of preferential furfural extraction was rationalized using COSMO-RS sigma-profile analysis.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Bharath Velaga, Nageswara Rao Peela
Summary: A novel, rapid, and green route for levulinic acid (LA) production from bio-derived furfural was developed using a microwave reactor. The process involved hydroxymethylation followed by rehydration and achieved high yields of LA under specific temperature conditions. Microwave heating significantly improved the conversion rate and yield compared to conventional heating. Techno-economic analysis showed that this process could produce LA at a lower cost.
Article
Chemistry, Multidisciplinary
Yubo Liu, Guoqiang Ding, Guoping Zhao, Haohao She, Yulei Zhu, Yong Yang
Summary: This study explores the combination of glucose dehydration and hydrogenation in a single pot, successfully converting glucose to levulinic acid and gamma-valerolactone under nitrogen and hydrogen conditions. Among various catalysts, Ru/TiO2 (rutile) was found to be the most favorable hydrogenation catalyst.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Weipeng Song, Huai Liu, Yong Sun, Junhua Zhang, Lincai Peng
Summary: This study reports a protocol using mature H,g zeolites in pure 1,4-dioxane to convert hemicellulose-related sugars into furfural. Under mild operating conditions, high yield and impressive selectivity of furfural can be achieved. Using 1,4-dioxane as a solvent can maintain the structure and acidic center of H,g, while inhibiting the polymerization reaction. This study not only provides a new pathway for the selective production of furfural, but also reveals the coordination mechanism between H,g zeolites and 1,4-dioxane.
Article
Energy & Fuels
Yao Liu, Rulu Huang, Junhua Zhang, Liang He, Lincai Peng
Summary: The hydrogenation reduction of furfural to furfuryl alcohol using a multifunctional zirconium-based hybrid catalyst showed high efficiency and remarkable cycle stability. Mechanistic studies demonstrated FAL reduction via intermolecular hydrogen transfer, and the catalyst also efficiently converted various biomass-derived carboxides to corresponding alcohols with high yields.
Article
Green & Sustainable Science & Technology
Muhammad Mujahid Anwar, Rabya Aslam
Summary: In this study, three zeolite-beta based catalysts were evaluated for the conversion of rice husk to furfural in the presence of sodium chloride as promoter. The catalysts were characterized using various analytical techniques and their activity was studied at optimized reaction conditions. The results showed that zeolite beta with 5 wt% post aluminum impregnation gave the highest yield of bio-oil (60.3 wt%) with 88% selectivity towards furfural in the presence of sodium chloride (5 wt% of feed) and sulfuric acid (10 wt% of feed).
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2023)
Article
Agricultural Engineering
Cornelius Basil Tien Loong Lee, Ta Yeong Wu, Chin Kui Cheng, Lee Fong Siow, Irene Mei Leng Chew
Summary: The study demonstrates that ultrasonic pretreatment can improve the yield of furfural from oil palm fronds by disrupting the lignin carbohydrate complex in biomass and increasing the availability of hemicellulose. Characterization studies revealed insights into the reaction process, and the resulting oil palm frond residues with a high glucan content can be considered a valuable byproduct.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)