Luiz Gustavo Possato

@fc.unesp.br

Assistant Professor, Department of Chemistry, School of Science, Unesp, bauru
Universidade Estadual Paulista

https://researchid.co/possato

RESEARCH, TEACHING, or OTHER INTERESTS

Catalysis, Colloid and Surface Chemistry, Global and Planetary Change, Spectroscopy

Scopus Publications

602

Scholar Citations

Scholar h-index

Scholar i10-index

Scopus Publications

In situ evaluation of Ni/CeO<inf>2</inf> catalysts synthesized via polymeric precursor method by XAS for CO<inf>2</inf> reduction
Matheus S. Assis, Marcela A. Lucas, Valérie Briois, and Luiz G. Possato
Elsevier BV

Fundamentals and development of oxidation catalysts: the acrylic acid manufacture case
Luiz H. Vieira, Leandro Martins, and Luiz G. Possato
Informa UK Limited

Exploiting the effect of PEO parameters on the surface of AISI 1020 low-carbon steel treated in a TaOH-rich electrolyte
N. Marcuz, R.P. Ribeiro, E.C. Rangel, N.C. Cruz, L.G. Possato, K.S. Coan, C.R. Grandini, and D.R.N. Correa
Elsevier BV

Evaluation of Properties Changes by the Addition of Surfactant in the Synthesis of Ni/CeO<inf>2</inf>
Lucas S. Ricci, Marcela A. Lucas, João C.P. de Souza, and Luiz G. Possato
FapUNIFESP (SciELO)

Synthesis of MgO Using the Sol-gel Method: Correlation Between CTAB Surfactant Concentration and MgO Properties
Gabriel R. Silva, Matheus S. Assis, João C. P. de Souza, and Luiz G. Possato
FapUNIFESP (SciELO)

BEST PRACTICES AND PITFALLS IN THE MEASUREMENTS OF THE CATALYTIC ACTIVITY OF MATERIALS IN THERMO-CATALYSIS
Leandro Martins, Laura Silva, and Luiz Possato
Sociedade Brasileira de Quimica (SBQ)
BEST PRACTICES AND PITFALLS IN THE MEASUREMENTS OF THE CATALYTIC ACTIVITY OF MATERIALS IN THERMO-CATALYSIS. As catalysis grows as a multidisciplinary research area, many questions arise regarding the procedures used to determine the activity of materials in different chemical reactions. To correct inconsistencies, whether in definitions, concepts, or experimental methods, some catalysis science journals have been publishing editorials warning less-aware authors. In this work, we present some common concepts and procedures in thermo-catalysis, reviewing good practices and pointing out frequent failures that make it difficult to reliably compare the activity between materials of the same family and results from the scientific literature.

Appraisal of Ni Species Supported on Porous MgO during Ethanol Steam Reforming by XAS
Luiz G. Possato, Sandra H. Pulcinelli, Leandro Martins, Valerie Briois, and Celso V. Santilli
Wiley
AbstractOperando time‐resolved X‐ray absorption spectroscopy (XAS) was used to determine nickel species supported on porous MgO during the ethanol steam reforming reaction. The Principal Component Analysis (PCA) of the nickel K‐edge XAS spectra revealed Ni(OH)2, NiMgO, and metallic Ni during the activation and reaction of the catalysts. The Multivariate Curve Resolution‐Alternating Least Squares (MCR‐ALS) method for the time‐resolved XAS spectra data permitted to calculate the concentration of species during the activation and reaction steps and to determine the formation of NiMgO and nickel reduction degree. The samples prepared with surfactants, Ni10MgO‐F127 and Ni10MgO‐P123, showed less nickel reduction (less than 30 %) but were more active and stable than the reference Ni10MgO catalyst, which reduced 52 %. It happened due to the smaller particle size and a larger specific area of the porous supports. The samples synthesized without Pluronic deactivated, and ethanol dehydrogenation became predominant instead of the ethanol steam reforming.

Progress of the Catalytic Deactivation of H-ZSM-5 Zeolite in Glycerol Dehydration
Gabriel L. Catuzo, Luiz G. Possato, María Eugenia Sad, Cristina Padró, and Leandro Martins
Wiley
AbstractGlycerol conversion into value‐added chemicals has received much attention due to the prospect of increasing the biodiesel industry‘s profitability. The dehydration of glycerol is one of the most explored reactions in the valorization of glycerol, and the zeolite H‐ZSM‐5 is one of the furthermost used structures. In this study, several characterization techniques were used to investigate the detailed aging of coke in spent H‐ZSM‐5 zeolites after their use in the gas‐phase glycerol dehydration to produce acrolein. The carbonaceous deposits formed almost totally in the first minutes of the reaction. They rapidly got trapped inside the pores, hampering the accessibility to active sites and the zeolite‘s full catalytic action. Two types of coke were formed during the reaction: polyglycols, on the external surface, and aromatics, inside the pores, representing the majority (∼98 wt.%) of the carbonaceous compounds. Besides, aromatic compounds age over time, becoming bulkier and more deficient in hydrogen. We also found a correlation between the amount of coke, its size, accessibility to the acid active sites, and changes in crystallographic parameters of the zeolite with the presence of coke.

Sol-gel synthesis of nanocrystalline MgO and its application as support in Ni/MgO catalysts for ethanol steam reforming
Luiz G. Possato, Rosembergue G.L. Gonçalves, Rodrigo M.M. Santos, Thiago F. Chaves, Valérie Briois, Sandra H. Pulcinelli, Leandro Martins, and Celso V. Santilli
Elsevier BV

Controlling the porosity and crystallinity of MgO catalysts by addition of surfactant in the sol-gel synthesis
Luiz G. Possato, Elen Pereira, Rosembergue G.L. Gonçalves, Sandra H. Pulcinelli, Leandro Martins, and Celso V. Santilli
Elsevier BV

A new synthetic smectite-like vanadosilicate containing V<sup>3+</sup> in the framework
Thiago F. Chaves, Luiz G. Possato, Celso V. Santilli, and Joaquín Pérez-Pariente
Elsevier BV

Synthesis and characterization of chromium silicate catalyst and its application in the gas phase glycerol transformation into acetaldehyde
Roberto A. Luizon Filho, Luiz G. Possato, Oscar A.N. Santisteban, Adriano de Vasconcellos, Danilo A. da Silva, Marcelo F. Lima, Leandro Martins, and José G. Nery
Elsevier BV

Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol
Luiz G. Possato, Mauro D. Acevedo, Cristina L. Padró, Valérie Briois, Aline R. Passos, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

Insights into Redox Dynamics of Vanadium Species Impregnated in Layered Siliceous Zeolitic Structures during Methanol Oxidation Reactions
Luiz H. Vieira, Luiz G. Possato, Thiago F. Chaves, Jason J. Lee, Taylor P. Sulmonetti, Christopher W. Jones, and Leandro Martins
Wiley
AbstractSupported transition metal catalysts have been extensively applied to oxidative and reductive processes. The understanding of surface speciation and active site‐support interactions in these materials play a substantial role in developing improved heterogeneous catalysts. Herein, a series of impregnated 3D ferrierite and 2D ITQ‐6 siliceous supports with variable loading of vanadium oxide was prepared. Chemical and structural properties of the materials were studied by X‐ray diffraction, N2 physisorption, inductively coupled plasma – optical emission spectrometry, X‐ray absorption, Fourier transform infrared and diffuse reflectance UV‐vis spectroscopies, and temperature‐programmed reduction with H2. Reactivity of the catalyst surface, associated with the incidence of isolated silanol groups, was found to be more effective when vanadium oxides were better dispersed and stabilized than increases in surface area. Differences in activation and the oxidation state dynamic behavior of active sites were then probed by methanol oxidation as a model reaction monitored by in situ FTIR spectroscopy and XANES/MS. By applying isothermal periods of reaction under non‐oxidizing atmosphere and regeneration of catalysts by O2, it was found that, even at distinct rates, all types of sites are accessible during reaction, since a complete reduction to V4+ was observed. However, reoxidation of sites to V5+ is limited and sensitive to the different vanadium species on the surface, and probably, the determinant factor of the distinct V5+/V4+ equilibrium reached for the catalysts when the reaction is carried out under constant oxidizing atmosphere.

Studies on dispersion and reactivity of vanadium oxides deposited on lamellar ferrierite zeolites for condensation of glycerol into bulky products
Luiz H. Vieira, Luiz G. Possato, Thiago F. Chaves, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

Thermal treatments of precursors of molybdenum and vanadium oxides and the formed Mo<inf>x</inf>V<inf>y</inf>O<inf>z</inf> phases active in the oxydehydration of glycerol
Luiz G. Possato, Wellington H. Cassinelli, Camilo I. Meyer, Teresita Garetto, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

The multiple benefits of glycerol conversion to acrolein and acrylic acid catalyzed by vanadium oxides supported on micro-mesoporous MFI zeolites
Luiz G. Possato, Thiago F. Chaves, Wellington H. Cassinelli, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

Hydrothermal synthesis of Mo-V mixed oxides possessing several crystalline phases and their performance in the catalytic oxydehydration of glycerol to acrylic acid
Letícia F. Rasteiro, Luiz H. Vieira, Luiz G. Possato, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

One-step oxidehydration of glycerol to acrylic acid using ETS-10-like vanadosilicates
Alex Silva Paula, Luiz Gustavo Possato, Davi Rubinho Ratero, Janine Contro, Keren Keinan-Adamsky, Ricardo Reis Soares, Gil Goobes, Leandro Martins, and José G. Nery
Elsevier BV

One-step glycerol oxidehydration to acrylic acid on multifunctional zeolite catalysts
Luiz G. Possato, Wellington H. Cassinelli, Teresita Garetto, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

A comparative study of glycerol dehydration catalyzed by micro/mesoporous MFI zeolites
Luiz Gustavo Possato, Rosiane N. Diniz, Teresita Garetto, Sandra H. Pulcinelli, Celso V. Santilli, and Leandro Martins
Elsevier BV

RECENT SCHOLAR PUBLICATIONS

Evaluation in situ of Ni/CeO2 catalysts synthesized via polymeric precursor method by XAS for CO2 reduction
MS Assis, MA Lucas, V Briois, LG Possato
Applied Catalysis B: Environment and Energy, 125144 2025

Fundamentals and development of oxidation catalysts: the acrylic acid manufacture case
LH Vieira, L Martins, LG Possato
Catalysis Reviews 67 (1), 244-281 2025

Evaluation of Properties Changes by the Addition of Surfactant in the Synthesis of Ni/CeO₂
LS Ricci, MA Lucas, JCP Souza, LG Possato
Materials Research 27 (suppl. 2), e20240149 2024

Synthesis of MgO Using the Sol-gel Method: Correlation Between CTAB Surfactant Concentration and MgO Properties
GR Silva, MS Assis, JCP Souza, LG Possato
Materials Research 27 (suppl. 2), e20240148 2024

Boas prticas e equvocos nas medidas de atividade cataltica de materiais em termocatlise
L Martins, LL Silva, LG Possato
Qumica Nova 47 (2), e-20230099 2024

Exploiting the effect of PEO parameters on the surface of AISI 1020 low-carbon steel treated in a TaOH-rich electrolyte
N Marcuz, RP Ribeiro, EC Rangel, NC Cruz, LG Possato, KS Coan, ...
Surface and Coatings Technology 477, 130374 2024

BEST PRACTICES AND PITFALLS IN THE MEASUREMENTS OF THE CATALYTIC ACTIVITY OF MATERIALS IN THERMO-CATALYSIS
L Martins, LL Silva, LG Possato
QUIMICA NOVA 47 (2) 2024

PII. 048 Sntese e caracterizao de catalisadores de Ni/CeO2 atravs da irradiao ultrassonica
LG Possato
22 CBCAT 2023

PII. 046 Sntese de suportes bsicos adquiridos pelo mtodo sol-gel com potencial aplicao para converso de CO2
G Silva, LG Possato
22 CBCAT 2023

PII. 047 Sntese e caracterizao de catalisadores Ni/CeO2 obtidos pelo mtodo dos precursores polimricos para aplicao no processo de reduo de CO2
M Assis, LG Possato
22 CBCAT 2023

Appraisal of Ni species supported on porous MgO during ethanol steam reforming by XAS
LG Possato, SH Pulcinelli, L Martins, V Briois, CV Santilli
ChemCatChem 14 (21), e202200684 2022

Progress of the Catalytic Deactivation of H‐ZSM‐5 Zeolite in Glycerol Dehydration
GL Catuzo, LG Possato, ME Sad, C Padro, L Martins
ChemCatChem 13 (20), 4419-4430 2021

Sol-gel synthesis of nanocrystalline MgO and its application as support in Ni/MgO catalysts for ethanol steam reforming
LG Possato, RGL Gonalves, RMM Santos, TF Chaves, V Briois, ...
Applied Surface Science 542, 148744 2021

Controlling the porosity and crystallinity of MgO catalysts by addition of surfactant in the sol-gel synthesis
LG Possato, E Pereira, RGL Goncalves, SH Pulcinelli, L Martins, ...
Catalysis Today 344, 52-58 2020

A new synthetic smectite-like vanadosilicate containing V3+ in the framework
TF Chaves, LG Possato, CV Santilli, J Perez-Pariente
Applied Clay Science 186, 105452 2020

Synthesis and characterization of chromium silicate catalyst and its application in the gas phase glycerol transformation into acetaldehyde
RA Luizon Filho, LG Possato, OAN Santisteban, A de Vasconcellos, ...
Inorganic Chemistry Communications 112, 107710 2020

Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol
LG Possato, MD Acevedo, CL Padr, V Briois, AR Passos, SH Pulcinelli, ...
Molecular Catalysis 481, 110158 2020

Cover Feature: Insights into Redox Dynamics of Vanadium Species Impregnated in Layered Siliceous Zeolitic Structures during Methanol Oxidation Reactions (ChemCatChem 1/2020)
LH Vieira, LG Possato, TF Chaves, JJ Lee, TP Sulmonetti, CW Jones, ...
ChemCatChem 12 (1), 2-2 2020

Insights into redox dynamics of vanadium species impregnated in layered siliceous zeolitic structures during methanol oxidation reactions
LH Vieira, LG Possato, TF Chaves, JJ Lee, TP Sulmonetti, CW Jones, ...
ChemCatChem 12 (1), 141-151 2020

Controlling the Porosity and Crystallinity of MgO Catalysts By Addition of Surfactant: A Knoevenagel Condensation Study
LG Possato, E Pereira, R Gonalves, S Pulcinelli, L Martins, C Santilli
2019 North American Catalysis Society Meeting 2019

MOST CITED SCHOLAR PUBLICATIONS

A comparative study of glycerol dehydration catalyzed by micro/mesoporous MFI zeolites
LG Possato, RN Diniz, T Garetto, SH Pulcinelli, CV Santilli, L Martins
Journal of Catalysis 300, 102-112 2013
Citations: 178

One-step glycerol oxidehydration to acrylic acid on multifunctional zeolite catalysts
LG Possato, WH Cassinelli, T Garetto, SH Pulcinelli, CV Santilli, L Martins
Applied Catalysis A: General 492, 243-251 2015
Citations: 86

The multiple benefits of glycerol conversion to acrolein and acrylic acid catalyzed by vanadium oxides supported on micro-mesoporous MFI zeolites
LG Possato, TF Chaves, WH Cassinelli, SH Pulcinelli, CV Santilli, ...
Catalysis Today 289, 20-28 2017
Citations: 53

One-step oxidehydration of glycerol to acrylic acid using ETS-10-like vanadosilicates
AS Paula, LG Possato, DR Ratero, J Contro, K Keinan-Adamsky, ...
Microporous and Mesoporous Materials 232, 151-160 2016
Citations: 46

Thermal treatments of precursors of molybdenum and vanadium oxides and the formed MoxVyOz phases active in the oxydehydration of glycerol
LG Possato, WH Cassinelli, CI Meyer, T Garetto, SH Pulcinelli, CV Santilli, ...
Applied Catalysis A: General 532, 1-11 2017
Citations: 37

Hydrothermal synthesis of Mo-V mixed oxides possessing several crystalline phases and their performance in the catalytic oxydehydration of glycerol to acrylic acid
LF Rasteiro, LH Vieira, LG Possato, SH Pulcinelli, CV Santilli, L Martins
Catalysis Today 296, 10-18 2017
Citations: 33

Studies on dispersion and reactivity of vanadium oxides deposited on lamellar ferrierite zeolites for condensation of glycerol into bulky products
LH Vieira, LG Possato, TF Chaves, SH Pulcinelli, CV Santilli, L Martins
Molecular Catalysis 458, 161-170 2018
Citations: 29

Progress of the Catalytic Deactivation of H‐ZSM‐5 Zeolite in Glycerol Dehydration
GL Catuzo, LG Possato, ME Sad, C Padro, L Martins
ChemCatChem 13 (20), 4419-4430 2021
Citations: 19

Fundamentals and development of oxidation catalysts: the acrylic acid manufacture case
LH Vieira, L Martins, LG Possato
Catalysis Reviews 67 (1), 244-281 2025
Citations: 4

Appraisal of Ni species supported on porous MgO during ethanol steam reforming by XAS
LG Possato, SH Pulcinelli, L Martins, V Briois, CV Santilli
ChemCatChem 14 (21), e202200684 2022
Citations: 4

A new synthetic smectite-like vanadosilicate containing V3+ in the framework
TF Chaves, LG Possato, CV Santilli, J Perez-Pariente
Applied Clay Science 186, 105452 2020
Citations: 2

Boas prticas e equvocos nas medidas de atividade cataltica de materiais em termocatlise
L Martins, LL Silva, LG Possato
Qumica Nova 47 (2), e-20230099 2024
Citations: 1

Desidratao oxidativa do glicerol a cido acrlico em uma nica etapa empregando-se catalisadores bifuncionais
LG Possato
Universidade Estadual Paulista (Unesp) 2016
Citations: 1