Article
Chemistry, Inorganic & Nuclear
Ashish Kumar Kar, Surinder Pal Kaur, T. J. Dhilip Kumar, Rajendra Srivastava
Summary: In this study, an efficient heterogeneous catalyst was developed for the selective hydrodeoxygenation of vanillin to MMP. The MoCoOx@C-2 catalyst exhibited high conversion of vanillin and selectivity for MMP. Moreover, the catalyst showed excellent reusability with no loss in activity after 5 cycles.
DALTON TRANSACTIONS
(2023)
Article
Energy & Fuels
Alekhya Kunamalla, Sunil K. Maity
Summary: This study focuses on the production of green jet fuel from biomass-derived furanic compounds through catalytic reactions. The use of MoO3-promoted ZrO2 catalyst in the hydroxyalkylation-alkylation reaction showed the best catalytic performance. Additionally, the hydrodeoxygenation of the biofuel precursor was examined to understand the reaction mechanism and identify optimum conditions.
Article
Chemistry, Inorganic & Nuclear
Ganesh Sunil More, Bhupendra Pratap Singh, Rajaram Bal, Rajendra Srivastava
Summary: This study demonstrates the use of sustainable transition metal-based catalysts to hydrogenate lignin-derived phenolics. A defect-induced oxygen vacancy containing H-NbO x prepared from commercial Nb(2)O(5) was employed as a catalyst. The formation of Ni/NiO interface over H-NbO x resulted in enhanced activity for the hydrogenation of phenolics. 10Ni/H-NbO x exhibited significantly higher conversion rate and selectivity compared to 10Ni/Nb2O5. The findings highlight the potential of sustainable transition metal catalysts for the production of valuable chemicals from lignin-derived phenolic compounds.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Penghui Yan, Eric Kennedy, Michael Stockenhuber
Summary: Ion-exchanged Ru/ZSM-5 and Ru/BEA catalysts show high intrinsic HDO activity with finely dispersed metal particles interacting strongly with oxygen atoms. High H2 adsorption activity facilitates hydrogenation reaction, while acid sites play a pivotal role in deoxygenation reaction.
JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Chemical
Nga Tran, Yoshimitsu Uemura, Thanh Trinh, Anita Ramli
Summary: In this study, the activity and stability of different metal catalysts in vapor-phase HDO process were investigated, revealing that bimetallic Pd-Co and Pd-Fe catalysts showed higher HDO yield and stability compared to monometallic catalysts, with Pd-Fe catalyst demonstrating higher stability and regeneration ability.
Article
Energy & Fuels
Jing Chen, Zongyan Ma, Jiaheng Qin, Ming Chen, Linkun Dong, Weiwen Mao, Xueqi Zhou, Yu Long, Jiantai Ma
Summary: By synthesizing rod-like CoNi alloy catalysts, a selectivity of up to 94.9% for cyclohexanol can be achieved under mild reaction conditions. The synergistic effect of the CoNi alloy also enhances the hydrogen adsorption capability and catalytic activity.
Article
Chemistry, Physical
Mengting Chen, Qifeng Zhong, Meihua Zhang, Hao Huang, Yingxin Liu, Zuojun Wei
Summary: In this study, a RuMn/Al2O3-SiO2 multifunctional catalyst was prepared and efficiently converted lignin-derived phenols into cyclohexanol through aqueous partial hydrodeoxygenation (HDO). The high performance of the RuMn/Al2O3-SiO2 catalyst can be attributed to the synergistic effects of highly dispersed Ru nanoparticles with small size, the microsphere structure, appropriate acid sites from Al2O3-SiO2, and acid-base sites from MnOx.
CATALYSIS COMMUNICATIONS
(2022)
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
Chemistry, Analytical
Dayi Guo, Bo Cai, Rui Kang, Shuai Wang, Junfeng Feng, Hui Pan
Summary: A new catalyst, Ni1Co3Al2-600, was developed for the hydrodeoxygenation process of biomass to produce biofuels and chemicals. The catalyst showed excellent catalytic performance and stability.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Chemistry, Applied
Lizhi Wu, Jinhe Wei, Ying Zhang, Yongsheng He, Xiaofang Wang, Haoquan Guo, Yu Tang, Li Tan
Summary: In this study, a co-modified zeolite catalyst (Co/TS-1) was prepared and evaluated for the catalytic hydrodeoxygenation of guaiacol. Experimental investigations revealed that the guaiacol conversion and cyclohexanol selectivity could be significantly improved by regulating the Ti and Co content as well as the reduction temperature. The introduction of appropriate Ti was found to modulate the catalyst sites, enhance the interaction between Co and support, and increase the reduction degree of the metal, resulting in higher HDO performance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Engineering, Chemical
Zihan Yu, Zhiquan Yu, Yao Wang, Zhichao Sun, Yingya Liu, Anjie Wang
Summary: Molybdenum carbide catalysts were prepared using nonthermal plasma carburization and conventional temperature-programmed reduction carburization. The nonthermal plasma carburization method resulted in catalysts with smaller crystal size and more active sites, leading to higher conversion and selectivity at low temperatures.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2022)
Article
Chemistry, Applied
C. Garcia-Mendoza, C. E. Santolalla-Vargas, Luis G. Woolfolk, P. del Angel, J. A. de los Reyes
Summary: The research found that high acidity is beneficial for demethylation, while medium acidity may promote the cleavage of the aromatic-OCH3 bond. The higher the titania content, the stronger the catalyst's ability to produce completely deoxygenated compounds.
Article
Chemistry, Applied
Fei Ge, Haihong Xia, Jing Li, Xiaohui Yang, Minghao Zhou, Jianchun Jiang
Summary: In this work, core-shell Cox@C@Ni catalysts were prepared and applied to catalyze the conversion of guaiacol to cyclohexanol. The catalysts showed better performance compared to Co@C catalyst. The optimal condition achieved nearly 100% conversion of guaiacol and 90% selectivity of cyclohexanol at 220 degrees C for 2 hours using isopropanol as the hydrogen donor solvent. The structure, composition, and acidity of the catalysts played a significant role in the hydrodeoxygenation reaction, and the reaction mechanism was deduced based on product distributions and physicochemical properties.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Camila A. Teles, Priscilla M. de Souza, Raimundo C. Rabelo-Neto, Alejandra Teran, Gary Jacobs, Clara Vilela Weikert, Zuy M. Magriotis, Vinicius O. O. Goncalves, Daniel E. Resasco, Fabio B. Noronha
Summary: The effect of support type on the removal of oxygenated functional groups during hydrodeoxygenation of guaiacol was investigated. Three main reaction pathways were proposed, with demethoxylation being the dominant pathway. The presence of certain support types led to further conversion of phenol, while others resulted in the detection of benzene. The strong adsorption of hydroxyl groups may inhibit the deoxygenation rates.
MOLECULAR CATALYSIS
(2022)
Article
Engineering, Environmental
Lin Hu, Xian-Yong Wei, Mei-Ling Xu, Yu-Hong Kang, Xian-Hou Guo, Feng-Bin Zhang, Zhi-Min Zong, Hong-Cun Bai
Summary: This research demonstrates that Pd-based zeolite catalysts show high catalytic activity in the HDO conversion of Guaiacol, resulting in high yield of hydrocarbons.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Gaffar Imran, Vinju Vasudevan Srinivasan, Rajamanickam Maheswari, Anand Ramanathan, Bala Subramaniam
JOURNAL OF POROUS MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Vinju Vasudevan Srinivasan, Adeline Ranoux, Rajamanickam Maheswari, Ulf Hanefeld, Anand Ramanathan, Bala Subramaniam
RESEARCH ON CHEMICAL INTERMEDIATES
(2016)
Article
Chemistry, Physical
Jian-Feng Wu, Anand Ramanathan, William K. Snavely, Hongda Zhu, Andrzej Rokicki, Bala Subramaniam
APPLIED CATALYSIS A-GENERAL
(2016)
Article
Chemistry, Physical
Connor P. Nash, Anand Ramanathan, Daniel A. Ruddy, Mayank Behl, Erica Gjersing, Michael Griffin, Hongda Zhu, Bala Subramaniam, Joshua A. Schaidle, Jesse E. Hensley
APPLIED CATALYSIS A-GENERAL
(2016)
Article
Chemistry, Physical
Wenjuan Yan, Anand Ramanathan, Pansy D. Patel, Swarup K. Maiti, Brian B. Laird, Ward H. Thompson, Bala Subramaniam
JOURNAL OF CATALYSIS
(2016)
Article
Materials Science, Multidisciplinary
Rajamanickam Rajalakshmi, Rajamanickam Maheswari, Anand Ramanathan
MATERIALS RESEARCH BULLETIN
(2016)
Article
Chemistry, Applied
Hongda Zhu, Rajamanickam Maheswari, Anand Ramanathan, Bala Subramaniam
MICROPOROUS AND MESOPOROUS MATERIALS
(2016)
Article
Engineering, Chemical
Swamp K. Maiti, Anand Ramanathan, Ward H. Thompson, Bala Subramaniam
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2017)
Correction
Biochemistry & Molecular Biology
Anand Ramanathan, Bala Subramaniam
Review
Biochemistry & Molecular Biology
Anand Ramanathan, Bala Subramaniam
Article
Chemistry, Applied
Anoop Uchagawkar, Anand Ramanathan, Yongfeng Hu, Bala Subramaniam
Article
Chemistry, Multidisciplinary
Yang Xiao, Anand Ramanathan, Bala Subramaniam, Arvind Varma
Summary: In this study, Pt supported on Nb, W, and Zr-incorporated KIT-6 catalysts were prepared and tested for the gas-phase hydrodeoxygenation (HDO) of a model compound of bio-oil. The results showed that the 1 wt % Pt/Nb-KIT-6 catalyst exhibited excellent HDO performance under relatively mild conditions, and the catalyst showed good resistance to coking.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Hongda Zhu, Raghunath V. Chaudhari, Bala Subramaniam, Anand Ramanathan, Jian-Feng Wu
Article
Chemistry, Physical
Muthusamy P. Pachamuthu, Rajamanickam Maheswari, Anand Ramanathan
APPLIED SURFACE SCIENCE
(2017)
Article
Chemistry, Physical
Muthusamy P. Pachamuthu, Sekar Karthikeyan, Rajamanickam Maheswari, Adam F. Lee, Anand Ramanathan
APPLIED SURFACE SCIENCE
(2017)
