Results 61 to 70 of about 563,277 (276)

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

POLIESTIRENO EXPANDIDO NA ESTABILIZAÇÃO DE SOLOS MOLES SUA APLICAÇÃO PARA CONSTRUÇÃO DE RODOVIAS

, 2022
As dificuldades encontradas nas obras de engenharia despertam a necessidade de trazer novas tecnologias e métodos construtivos para que a execução de novos edifícios, rodovias e afins se tornem cada vez mais viáveis. Visto que atualmente a disponibilidade de bons solos, que possuem boa capacidade em locais com grande crescimento demográfico e avanço ...
De Lima, Ariane Pereira, Da Silva, Felipe Silvestre, Pereira, Inara Beatriz Gaego, Souza, Michelle Dos Santos, Lima, Vanessa Gomes, Prof.: Anderson Figueiredo Da Costa   +5 more
openaire   +1 more source

Estudo de solos do município de Pinhal, RS. [PDF]

, 2012
bitstream/item/47503/1/circular-112.pdf; bitstream/item/46965/1/Pinhal-aptidaoagricola.pdf; bitstream/item/46967/1/Pinhal-capacidade-de-uso.pdf; bitstream/item/46968/1/Pinhal-Relevo93.pdf; bitstream/item/46969/1/Pinhal-Solos ...
CUNHA, N. G. da, FILIPPINI ALBA, J. M., KOESTER, E., LOPES, R. T., OLIVEIRA, L. D. de, SILVEIRA, R. J. da C., TERRES, V. C.   +6 more
core  

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

Advanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh, Siqi Liu, Nurul F. Himma, Béla Fiser, Andrea I. Schäfer   +4 more
wiley   +1 more source

Estudos de solos do município de Novo Tiradentes, RS [PDF]

, 2014
bitstream/item/39844/1/circular-109.pdf; bitstream/item/39845/1/Novo-Tiradentes-aptidaoagricola93.pdf; bitstream/item/39846/1/Novo-Tiradentes-capacidadedeuso.pdf; bitstream/item/39847/1/Novo-Tiradentes-capacidadedeuso93.pdf; bitstream/item/39848/1 ...
COSTA, F. A. da, CUNHA, N. G. da, FILIPPINI ALBA, J. M., KOESTER, E., LOPES, R. T., OLIVEIRA, L. D. de, SILVEIRA, R. J. da, TERRES, V. C.   +7 more
core   +1 more source

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

Advanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider, S. Esmael Balaghi, Niklas Ortlieb, Patrick Elsaesser, Sima Heidari, Christopher S. Allen, Anna Fischer   +6 more
wiley   +1 more source

Estudo de solos do município de Seberi, RS. [PDF]

, 2019
bitstream/item/47566/1/circular-114.pdf; bitstream/item/47545/1/Seberi-aptidaoagricola.pdf; bitstream/item/47546/1/Seberi-capacidade.pdf; bitstream/item/47547/1/Seberi-Relevo93.pdf; bitstream/item/47550/1/Seberi-solos ...
COSTA, F. A. da, CUNHA, N. G. da, FILIPPINI ALBA, J. M., KOESTER, E., LOPES, R. T., SILVEIRA, R. J. da C., TERRES, V. C.   +6 more
core  

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source

The Influence of the Shoe over the Medial Foot Arch and the Lower Limbs Kinematics in Toddlers. [PDF]

Rev Bras Ortop (Sao Paulo), 2022
Okai-Nobrega LA, Santos TRT, Lage AP, Araújo PA, Souza TR, Fonseca ST.   +5 more
europepmc   +1 more source