Jose Mansur Assaf
@mansur@ufscar.br
Professor - Chemical Engineering Department
Federal University of Sao Carlos
RESEARCH INTERESTS
Heterogeneous Catalysis
Renovable Energies
124
Scopus Publications
5487
Scholar Citations
45
Scholar h-index
89
Scholar i10-index
Scopus Publications
- Evaluation of the potassium incorporation method in MgFe catalysts derived from layered double hydroxides in the hydrogenation of CO<inf>2</inf>
Rosembergue Gabriel Lima Gonçalves, Gabriel Liscia Catuzo, José Mansur Assaf, and Elisabete Moreira Assaf
Elsevier BV - Impact of the copper load on the performance of Cu/UiO-67 in CO<inf>2</inf> hydrogenation to ethanol at atmospheric pressure
Luana do Nascimento Rocha de Paula, Janaina Fernandes Gomes, and José Mansur Assaf
Elsevier BV - Influence of La<inf>2</inf>O<inf>3</inf> Addition on CuO/CeO<inf>2</inf> Catalysts for the Water-Gas Shift Reaction
Tatiana de Freitas Silva, José Mansur Assaf, Alessandra Fonseca Lucrédio, Cristhiane Guimarães Maciel Reis, and Karina Arruda Almeida
American Chemical Society (ACS)
CuO/CeO2 and CuO/xCeO2-yLa2O3 catalysts, synthesized with varying CeO2 and La2O3 molar ratios (1:1, 1:2, and 2:1), were prepared via the hydrothermal method and tested in the water-gas shift reaction (150-350 °C). La2O3 addition altered structural properties, reducing surface area and copper dispersion. XANES and in situ XRD confirmed metallic Cu species during reduction and reaction. Catalytic tests revealed CuO/CeO2 excelled at low temperatures, while La2O3-doped catalysts, especially CuO/1CeO2-1 La2O3, performed better at 250-350 °C. Stability tests showed La2O3-doped catalysts resisted deactivation and sintering better than CuO/CeO2, even with CO2 and H2 in the feed. - Improving Coking Resistance and Catalytic Performance of Ni Catalyst from LaNiO<inf>3</inf> Perovskite by Dispersion on SBA-15 Mesoporous Silica for Hydrogen Production by Steam Reforming of Ethanol
Isa Carolina Silva Costa, Elisabete Moreira Assaf, and José Mansur Assaf
Springer Science and Business Media LLC
A strategic option for the production of H2 from renewable resources is use of the ethanol steam reforming reaction. Catalysts based on nickel have been widely investigated for this reaction, offering the advantages of low cost and high activity. However, a difficulty is that nickel may be strongly deactivated by coke formation. Perovskite-type mixed oxides are promising precursors for nickel-based catalysts, since their reduction leads to the formation of highly dispersed metal particles that can mitigate carbon deposition. However, high calcination temperatures are required for perovskite structure formation, resulting in low surface areas and limiting the effectiveness of this method. In order to address this difficulty, the present work proposes a novel strategy whereby the perovskite-type oxide LaNiO3 is supported on SBA-15. Characterization of the catalysts was performed using XRF, XRD, SEM, TPR, TEM, BET, H2-TPD, and TGA techniques. Their performances were then evaluated in catalysis of the ethanol steam reforming reaction to produce hydrogen. Calcination at 750 °C resulted in formation of highly dispersed perovskite on a support that presented high specific surface area. The catalyst obtained from reduced LaNiO3/SBA-15 with 33 wt% perovskite was the most active in the reaction. Analyses using TGA and SEM showed the formation of carbon mainly over Ni catalysts obtained from bulk LaNiO3 perovskite, while supporting LaNiO3 on SBA-15 led to lower deposition of carbon. The superior performance of this material in catalysis could be attributed to the dispersion of the perovskite on SBA-15, resulting in smaller size of the Ni metal particles formed during the reduction, compared to the catalyst derived from bulk perovskite. This promising method could be used in the production of a wide range of other catalysts. - CO<inf>2</inf> Hydrogenation to Methanol over Mesoporous SiO<inf>2</inf>-Coated Cu-Based Catalysts
Luiz H. Vieira, Marco A. Rossi, Letícia F. Rasteiro, José M. Assaf, and Elisabete M. Assaf
American Chemical Society (ACS) - Innovative proposal for N<inf>2</inf> capturing in Liquid Argon using the Li-FAU molecular Sieve
Dilson Cardoso, Ettore Segreto, Ivana Cruz, Edilene Deise da Silva, Iago William Zapelini, Rosembergue G. Gonçalves, G.S. Freitas, Ana Maria Caffer, J.C. Souza, D.S. Christovam,et al.
IOP Publishing
Abstract In this work, we unveil the potential of nitrogen (N2) adsorption from Liquid Argon (LAr) through the molecular sieves (zeolites) Li-FAU Adsorbents. We report detailed studies about N2 gas adsorption at T = 89 K using a commercial Micromeritics ASAP-2420 equipment and N2 purification from LAr using the Purification Cryostat (PuLArC) at IFGW/Unicamp. We argue that the N2 adsorption by the Li-FAU is possible thanks to the stronger interaction of N2 with the lithium cations present in zeolite Li-FAU. In fact, the experiments performed in PuLArC have unequivocally shown that the Li-FAU adsorbent was capable of capturing N2, reducing a N2 contamination of 20–50 ppm to 0.1–1.0 ppm in 1–2 hours of circulation time in LAr for several runs. This result demonstrated the great potential of the Li-FAU adsorbent for N2 capturing in LAr and invoke further tests of this material in larger scale LAr cryostats in order to confirm the innovative proposal of using the Li-FAU molecular sieve in replacement of Molecular Sieve 4A, currently used in LAr cryostats for neutrino experiments. - Recent Understanding of Water-Assisted CO<inf>2</inf> Hydrogenation to Alcohols
Luiz H. Vieira, Alisson H. M. da Silva, Cássia S. Santana, Elisabete M. Assaf, José M. Assaf, and Janaina F. Gomes
Wiley
AbstractAlcohol production from CO2 hydrogenation is a cutting‐edge process in sustainable chemistry that holds vast promise for addressing climate change by recycling and repurposing emissions. Many strategies have been proposed to improve the process efficiency. In‐situ generated, and trace amounts of water added to the feed stream have recently proved to be determinant to promote key reaction steps, increasing alcohol selectivity and yield. Here, we discuss the main findings that led to an atomic‐level understanding of water promotional effects in CO2 hydrogenation to alcohols. H2O and the products resultant from its dissociation (OH and O) can act in different ways, stabilizing intermediates and active sites or participating in the hydrogen transfer mechanisms during the reaction. Gaining insights into the mechanisms underlying water promotion offers a cost‐effective strategy for enhancing alcohol production efficiency. - Investigation of intermediates formation in the CO<inf>2</inf> hydrogenation to methanol reaction over Ni<inf>5</inf>Ga<inf>3</inf>-ZrO<inf>2</inf>-SBA-15 materials prepared via ZrO<inf>2</inf> atomic layer deposition
Letícia F. Rasteiro, José M. Assaf, and Elisabete M. Assaf
Elsevier BV - Effects of the potassium incorporation in Fe–Ce–Zr based catalysts and activation condition in CO<inf>2</inf> hydrogenation to C<inf>2</inf>/C<inf>3</inf> olefins at atmospheric pressure
Ananda Vallezi Paladino Lino, Luiz Henrique Vieira, Elisabete Moreira Assaf, and José Mansur Assaf
Elsevier BV - Introduction to high-value chemicals and energy production from CO<inf>2</inf>
Gabriel L. Catuzo, Ananda V.P. Lino, Elisabete M. Assaf, José M. Assaf, and Rita M.B. Alves
Elsevier - Supported Cu catalysts on UiO-66 toward enhanced methanol selectivity by CO<inf>2</inf> hydrogenation: Effect of Cu loading
Francielle Candian Firmino Marcos, Maria Jose Fonseca Costa, Gabriel L. Catuzo, Daniel Angeli de Moraes, Marcos de Oliveira Junior, Valmor Roberto Mastelaro, José Mansur Assaf, Reinaldo Giudici, and Elisabete Morreira Assaf
Elsevier BV - Investigation of In Promotion on Cu/ZrO<inf>2</inf> Catalysts and Application in CO<inf>2</inf> Hydrogenation to Methanol
Marco A. Rossi, Letícia F. Rasteiro, Luiz H. Vieira, Marco A. Fraga, José M. Assaf, and Elisabete M. Assaf
Springer Science and Business Media LLC - Cooperative effect of Pt and Cu on CeO<inf>2</inf> for the CO-PROX reaction under CO<inf>2</inf>–H<inf>2</inf>O feed stream
Aline R.M. Cruz, Luiz H. Vieira, Elisabete M. Assaf, Janaina F. Gomes, and José M. Assaf
Elsevier BV - Noble Metals in Recent Developments of Heterogeneous Catalysts for CO<inf>2</inf> Conversion Processes
Luiz H. Vieira, Letícia F. Rasteiro, Cássia S. Santana, Gabriel L. Catuzo, Alisson H. M. da Silva, José M. Assaf, and Elisabete M. Assaf
Wiley - Enhancing Catalytic Performance with Sol-Gel Hydrotalcite-Derived Nickel Oxide Catalysts for Dry Reforming of Methane: An Examination on Reactivity and Coke Formation
Alberth Renne Gonzalez Caranton, Fernando Stavale, Emilia Annese, Carolina Gaioto, Nohemi Raquel Checca, and José Mansur Assaf
Wiley - Ethanol formation from CO<inf>2</inf> hydrogenation at atmospheric pressure using Cu catalysts: Water as a key component
Alisson H.M. da Silva, Luiz H. Vieira, Cássia S. Santanta, Marc T.M. Koper, Elisabete M. Assaf, José M. Assaf, and Janaina F. Gomes
Elsevier BV - Highly porous CuZnAl layered double hydroxides prepared by biochar-templated co-precipitation method as catalysts for the preferential oxidation of CO reaction
Rosembergue Gabriel Lima Gonçalves, Davi Domingos Petrolini, Francielle Candian Firmino Marcos, José Mansur Assaf, and Elisabete Moreira Assaf
Elsevier BV - The role of copper crystallization and segregation toward enhanced methanol synthesis via CO<inf>2</inf> hydrogenation over CuZrO<inf>2</inf> catalysts: A combined experimental and computational study
Francielle C.F. Marcos, Raphael S. Alvim, Lili Lin, Luis E. Betancourt, Davi D. Petrolini, Sanjaya D. Senanayake, Rita M.B. Alves, José M. Assaf, Jose A. Rodriguez, Reinaldo Giudici,et al.
Elsevier BV - In situ study of low-temperature dry reforming of methane over La<inf>2</inf>Ce<inf>2</inf>O<inf>7</inf> and LaNiO<inf>3</inf> mixed oxides
Adriana P. Ramon, Xiansheng Li, Adam H. Clark, Olga V. Safonova, Francielle C. Marcos, Elisabete M. Assaf, Jeroen A. van Bokhoven, Luca Artiglia, and José M. Assaf
Elsevier BV - Influence of Al, Cr, Ga, or Zr as promoters on the performance of Cu/ZnO catalyst for CO<inf>2</inf> hydrogenation to methanol
Cássia S. Santana, Letícia F. Rasteiro, Francielle C.F. Marcos, Elisabete M. Assaf, Janaina F. Gomes, and José M. Assaf
Elsevier BV - Promoting effects of indium doped Cu/CeO<inf>2</inf> catalysts on CO<inf>2</inf> hydrogenation to methanol
Marco A. Rossi, Luiz H. Vieira, Letícia F. Rasteiro, Marco A. Fraga, José M. Assaf, and Elisabete M. Assaf
Royal Society of Chemistry (RSC)
Combining catalyst modification by indium doping and chemometric optimization, the Cu/CeO2 system showed high selectivity to methanol (99.3%) with no CO formation during CO2 hydrogenation. - Insights into the alloy-support synergistic effects for the CO<inf>2</inf> hydrogenation towards methanol on oxide-supported Ni<inf>5</inf>Ga<inf>3</inf> catalysts: An experimental and DFT study
Letícia F. Rasteiro, Rafael A. De Sousa, Luiz H. Vieira, Vivianne K. Ocampo-Restrepo, Lucas G. Verga, José M. Assaf, Juarez L.F. Da Silva, and Elisabete M. Assaf
Elsevier BV - Syngas production by methane tri-reforming: Effect of Ni/CeO<inf>2</inf> synthesis method on oxygen vacancies and coke formation
Chayene Gonçalves Anchieta, Elisabete Moreira Assaf, and José Mansur Assaf
Elsevier BV - Fuel gas from syngas
Ananda Vallezi Paladino Lino, Chayene Gonçalves Anchieta, Elisabete Moreira Assaf, and José Mansur Assaf
Elsevier
RECENT SCHOLAR PUBLICATIONS
- Evaluation of the potassium incorporation method in MgFe catalysts derived from layered double hydroxides in the hydrogenation of CO2
RGL Gonalves, GL Catuzo, JM Assaf, EM Assaf
Catalysis Today 448, 115166 2025 - Impact of the K and Fe insertion methods in KFeCeZr catalysts on the CO2 hydrogenation to C2/C3 olefins at room pressure
AVP Lino, LH Vieira, EM Assaf, JM Assaf
Chemical Engineering Science 302, 120898 2025 - Influence of La2O3 Addition on CuO/CeO2 Catalysts for the Water–Gas Shift Reaction
T de Freitas Silva, JM Assaf, AF Lucrdio, CGM Reis, KA Almeida
Langmuir 2025 - Impact of the copper load on the performance of Cu/UiO-67 in CO2 hydrogenation to ethanol at atmospheric pressure
LNR de Paula, JF Gomes, JM Assaf
Catalysis Today 444, 115014 2025 - Improving Coking Resistance and Catalytic Performance of Ni Catalyst from LaNiO3 Perovskite by Dispersion on SBA-15 Mesoporous Silica for Hydrogen
ICS Costa, EM Assaf, JM Assaf
Topics in Catalysis 67 (19), 1318-1333 2024 - Innovative proposal for N2 capturing in Liquid Argon using the Li-FAU molecular Sieve
D Cardoso, E Segreto, I Cruz, ED da Silva, IW Zapelini, RG Gonalves, ...
Journal of Instrumentation 19 (08), C08001 2024 - Overview of collaborative research between UNICAMP in Brazil and Fermilab in cryogenics
M Adamowski, C Adriano, TM Alegre, EM Assaf, JM Assaf, FM Blaszczyk, ...
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States) 2024 - CO2 Hydrogenation to Methanol over Mesoporous SiO2-Coated Cu-Based Catalysts
LH Vieira, MA Rossi, LF Rasteiro, JM Assaf, EM Assaf
ACS Nanoscience Au 4 (4), 235-242 2024 - Recent Understanding of Water‐Assisted CO2 Hydrogenation to Alcohols
LH Vieira, AHM da Silva, CS Santana, EM Assaf, JM Assaf, JF Gomes
ChemCatChem 16 (11), e202301390 2024 - Investigation of intermediates formation in the CO2 hydrogenation to methanol reaction over Ni5Ga3-ZrO2-SBA-15 materials prepared via ZrO2 atomic layer deposition
LF Rasteiro, JM Assaf, EM Assaf
Applied Surface Science 654, 159444 2024 - Effects of the potassium incorporation in Fe–Ce–Zr based catalysts and activation condition in CO2 hydrogenation to C2/C3 olefins at atmospheric pressure
AVP Lino, LH Vieira, EM Assaf, JM Assaf
International Journal of Hydrogen Energy 51, 1122-1140 2024 - Syngas production via methane tri-reforming on Ni/La2O-ΑAl2O3 catalysts
VV Thyssen, AVP Lino, JM Assaf, EM Assaf
Brazilian Journal of Chemical Engineering (Online) 41 (3) 2024 - Application of Hydrogen in Mixed Higher Alcohols Production
AVP Lino, JM Assaf, GL Catuzo, EM Assaf
Hydrogen Applications and Technologies, 42-78 2024 - Introduction to high-value chemicals and energy production from CO2
GL Catuzo, AVP Lino, EM Assaf, JM Assaf, RMB Alves
Advances and Technology Development in Greenhouse Gases: Emission, Capture 2024 - Supported Cu catalysts on UiO-66 toward enhanced methanol selectivity by CO2 hydrogenation: Effect of Cu loading
FCF Marcos, MJF Costa, GL Catuzo, DA de Moraes, M de Oliveira Junior, ...
Journal of Catalysis 427, 115104 2023 - PI. 049 Efeito da adio de Al e Nb como promotores em catalisadores Cu/Zn aplicados na reao de hidrogenao de CO2 a metanol
I RODEGHERI, JF Gomes, JM Assaf
22 CBCAT 2023 - PI. 126 Efeito da razo Cu/Fe e teor de potssio na hidrogenao do CO2 aos lcoois superiores usando catalisadores de K/Cu-Fe
G Catuzo, L Vieira, F Marcos, R Alves, M Zaiat, J Assaf, E Assaf
22 CBCAT 2023 - PI. 132 Uso da gua como agente promotor na hidrogenao de CO2 para produo de lcoois em presso atmosfrica
LNR de Paula, JF Gomes, JM Assaf
22 CBCAT 2023 - PII. 131 Otimizao da Atividade Cataltica na Hidrogenao de CO2: Efeito da Calcinao do HDL de MgFe antes da Impregnao com Potssio
RGL Gonalves, GL Catuzo, JM Assaf, EM Assaf
22 CBCAT 2023 - PII. 115 Potencial do Ni encapsulado na zelita ZSM-5 na converso do furfural em γ-valerolactona via etapa nica
GB Fernandes, IM Rodegheri, LH Vieira, JM Assaf
22 CBCAT 2023
MOST CITED SCHOLAR PUBLICATIONS
- High efficiency steam reforming of ethanol by cobalt-based catalysts
MS Batista, RKS Santos, EM Assaf, JM Assaf, EA Ticianelli
Journal of Power Sources 134 (1), 27-32 2004
Citations: 331 - Characterization of the activity and stability of supported cobalt catalysts for the steam reforming of ethanol
MS Batista, RKS Santos, EM Assaf, JM Assaf, EA Ticianelli
Journal of Power Sources 124 (1), 99-103 2003
Citations: 303 - Structural features of La1− xCexNiO3 mixed oxides and performance for the dry reforming of methane
SM Lima, JM Assaf, MA Pena, JLG Fierro
Applied Catalysis A: General 311, 94-104 2006
Citations: 258 - Evaluation of the performance of Ni/La2O3 catalyst prepared from LaNiO3 perovskite-type oxides for the production of hydrogen through steam reforming and oxidative steam
SM de Lima, AM da Silva, LOO da Costa, JM Assaf, G Jacobs, BH Davis, ...
Applied Catalysis A: General 377 (1-2), 181-190 2010
Citations: 205 - Influence of calcium content in Ni/CaO/γ-Al2O3 catalysts for CO2-reforming of methane
JAC Dias, JM Assaf
Catalysis today 85 (1), 59-68 2003
Citations: 189 - Autothermal reforming of methane over Ni/γ-Al 2O3 catalysts: the enhancement effect of small quantities of noble metals
JAC Dias, JM Assaf
Journal of power sources 130 (1), 106-110 2004
Citations: 159 - Catalytic evaluation of perovskite-type oxide LaNi1− x RuxO3 in methane dry reforming
GC Araujo, SM Lima, JM Assaf, MA Pea, JLG Fierro, ...
Catalysis Today 133, 129-135 2008
Citations: 149 - Dry reforming of methane on Ni–Mg–Al nano-spheroid oxide catalysts prepared by the sol–gel method from hydrotalcite-like precursors
AR Gonzlez, YJO Asencios, EM Assaf, JM Assaf
Applied Surface Science 280, 876-887 2013
Citations: 138 - Hydrogen production by steam reforming of ethanol over Ni-based catalysts promoted with noble metals
LPR Profeti, JAC Dias, JM Assaf, EM Assaf
Journal of Power Sources 190 (2), 525-533 2009
Citations: 124 - Hydrogen production through oxidative steam reforming of ethanol over Ni-based catalysts derived from La 1-x Ce x NiO 3 perovskite-type oxides
SM de Lima, AM da Silva, LOO da Costa, JM Assaf, LV Mattos, R Sarkari, ...
Applied Catalysis B: Environmental 2012
Citations: 122 - Influence of the supramolecular structure and physicochemical properties of cellulose on its dissolution in a lithium chloride/N, N-dimethylacetamide solvent system
LA Ramos, JM Assaf, OA El Seoud, E Frollini
Biomacromolecules 6 (5), 2638-2647 2005
Citations: 121 - Methane conversion reactions on Ni catalysts promoted with Rh: Influence of support
AF Lucrdio, JM Assaf, EM Assaf
Applied Catalysis A: General 400 (1-2), 156-165 2011
Citations: 115 - Ni–Fe catalysts based on perovskite-type oxides for dry reforming of methane to syngas
SM de Lima, JM Assaf
Catalysis Letters 108, 63-70 2006
Citations: 112 - Reforming of a model biogas on Ni and Rh–Ni catalysts: Effect of adding La
AF Lucrdio, JM Assaf, EM Assaf
Fuel Processing Technology 102, 124-131 2012
Citations: 85 - Effect of nature of ceria support in CuO/CeO2 catalyst for PROX-CO reaction
CG Maciel, TF Silva, MI Hirooka, MN Belgacem, JM Assaf
Fuel 2012
Citations: 85 - La1−x Ca x NiO3 Perovskite Oxides: Characterization and Catalytic Reactivity in Dry Reforming of Methane
SM De Lima, MA Pena, JLG Fierro, JM Assaf
Catalysis letters 124, 195-203 2008
Citations: 79 - Autothermal reforming of methane over Ni/γ-Al2O3 promoted with Pd: The effect of the Pd source in activity, temperature profile of reactor and in ignition
JAC Dias, JM Assaf
Applied Catalysis A: General 334 (1-2), 243-250 2008
Citations: 73 - Electrocatalytic CO2 reduction to C2+ products on Cu and CuxZny electrodes: effects of chemical composition and surface morphology
AHM da Silva, SJ Raaijman, CS Santana, JM Assaf, JF Gomes, ...
Journal of Electroanalytical Chemistry 880, 114750 2021
Citations: 72 - Insights into the methanol synthesis mechanism via CO2 hydrogenation over Cu-ZnO-ZrO2 catalysts: Effects of surfactant/Cu-Zn-Zr molar ratio
FCF Marcos, L Lin, LE Betancourt, SD Senanayake, JA Rodriguez, ...
Journal of CO2 Utilization 41, 101215 2020
Citations: 72 - Reforming of a model sulfur-free biogas on Ni catalysts supported on Mg (Al) O derived from hydrotalcite precursors: effect of La and Rh addition
AF Lucrdio, JM Assaf, EM Assaf
Biomass and Bioenergy 60, 8-17 2014
Citations: 70