Results 91 to 100 of about 11,607 (259)

Using Chemometrics for Unraveling Complex Property Activity Relationships in Zeolite Catalyzed Sugar Conversion

ChemCatChem, Volume 18, Issue 2, 28 January 2026.
ABSTRACT The catalytic conversion of biomass‐derived sugars to 5‐hydroxymethylfurfural (5‐HMF) over zeolites is challenging due to internal mass transfer limitations arising from their microporous framework. To overcome this chronic issue, we prepared a set of micro‐mesoporous zeolites (22 samples), whose properties were fully characterized in our ...
Yuna Han, Laurent Lemaitre, Kim Larmier, Gerhard Pirngruber   +3 more
wiley   +1 more source

Humic fractions as support for the classification of high-mountain Organossolos in the southeast of Brazil [PDF]

Revista Brasileira de Ciência do Solo
Brazilian Soil Classification System (SiBCS) adopts a hierarchical approach to classify soils using specific diagnostic attributes. Organossolos (Histosols) class is differentiated according to its genesis, especially because the parent material is ...
Melania Merlo Ziviani, Luciele Hilda da Silva, João Pedro Comendouros Scott, Amanda Sales Alves, Luiz Alberto da Silva Rodrigues Pinto, Marcelo Souza Motta, Eduardo Carvalho da Silva Neto, Marcos Gervasio Pereira, Lúcia Helena Cunha dos Anjos   +8 more
doaj   +1 more source

A magyarországi termálvíz kincs szervesgeokémiai jellemzése: termálvíz - kerogén/bitumen kölcsönhatás geokémiai kutatása = Organic geochemical characterisation of Hungarian thermal waters and study on interplay between thermal water and kerogen/bitumen in rocks [PDF]

, 2011
Hévizeink szerves anyagai eredetét, minőségét és viselkedését kutatttuk. A vizsgálatok területei: 1 a hévizek szerves és szervetlen fáciesének kölcsönhatása, hőmérséklet-, mélység- és időfüggés; 2 hévizek humin anyagai (aromás prekurzorok); 3 a szerves ...
Brukner, Sándorné, Hetényi, Magdolna, Horváth, István, Kárpáti, Zoltán, Sajgó, Csanád, Veto, István   +5 more
core  

Insights into Electro‐Oxidative Dehydrogenation of Aldehydes on Copper Foam: The Role of Electrode Design, Side Reactions, and Substrate Properties

ChemElectroChem, Volume 13, Issue 1, January 2026.
This study focuses on understanding the electro‐oxidative dehydrogenation (EOD) of aldehydes on copper foam electrodes. It examines how electrode morphology, substrate type and concentration, and electrolyte composition influence reaction pathways, efficiency, and side reactions, providing insights to guide catalyst design and optimize low‐potential ...
Sonja D. Mürtz, Benni Zou, Simon Derichs, Justus Kümper, Regina Palkovits   +4 more
wiley   +1 more source

DOC trail: soil organic matter quality and soil aggregate stability in organic and conventional soils [PDF]

, 2000
Conclusion Soil organic matter quality is affected by the agricultural systems of the DOC trial. System effects on the chemical composition, however, were smaller than those on the living organisms in soil and their functions.
Eyhorn, Frank, Fliessbach, Andreas, Frei, Robert, Hany, Roland, Rentsch, Daniel   +4 more
core  

Enhancing Cropping System Productivity and Soil Properties Through Cotton/Peanut Intercropping With Optimized Row Configurations

Food and Energy Security, Volume 15, Issue 1, January/February 2026.
Compared to monoculture, the cotton‐peanut intercropping system outperforms in improving the SQI (soil quality index) and crop productivity through enhanced soil physical, chemical, and biological properties. The C4P6 configuration (4 rows of cotton intercropped with 6 rows of peanuts) demonstrates the best performance.
Menghua Zhai, Xuewen Wei, Pengcheng Li, Jian Wang, Qinqing Xu, Guilan Sun, Zhanlei Pan, Dulin Qin, Jie Zhang, Junhong Li, Yaopeng Zhang, Lizhi Wang, Kunfeng Wang, Xueyan Duan, Wenqi Zhao, Xin Li, Zhenggui Zhang, Zhanbiao Wang   +17 more
wiley   +1 more source

Pedogenesis in an Archaeological Dark Earth – Mulatto Earth Catena over Volcanic Rocks in Western Amazonia, Brazil

Revista Brasileira de Ciência do Solo, 2018
Archaeological Dark Earth (ADE) pedogenesis and pre-Columbian history are fundamental for understanding the biodiversity and pedodiversity of the Neotropical rainforest in the Amazon region.
Luís Antônio Coutrim dos Santos, Jane Kelly Silva Araujo, Valdomiro Severino de Souza Júnior, Milton César Costa Campos, Marcelo Metri Corrêa, Regilene Angélica da Silva Souza   +5 more
doaj   +1 more source

Systematic Determination of Structure‐Activity‐Selectivity Correlations for the Catalytic Oxidation of Glucose to Acetic Acid Depending on the Structure Type of the Used Polyoxometalate Catalyst

Chemistry – A European Journal, Volume 31, Issue 72, December 23, 2025.
Herein, we investigate in detail the influence of different polyoxometalate structure types on the reaction pathways and kinetics for the selective catalytic oxidation of glucose to acetic acid. Abstract The BioValCat (Enhanced Biomass Valorization by Engineering of Polyoxometalate Catalysts) project aims for developing homogeneously catalyzed ...
Andreas H. Pawlig, Weitao You, Maximilian J. Poller, Jakob Albert   +3 more
wiley   +1 more source

StructuraI correlation between soil humins and kerogens as seen by analyticaI pyrolysis [PDF]

, 1995
3 pages, 1 figure, 1 table, 10 references. Publicación incluida en: Select papers from the 17th International Meeting on Organic Geochemistry. 4-8/09/1995, San Sebastián, España.The possibility of the accumulation in soils of stable aliphatic materials ...
Almendros Martín, Gonzalo, González-Vila, Francisco Javier, Guadalix, M. Eugénia, Martín Martínez, Francisco   +3 more
core  

Optimasi Ekstraksi Asam Humat Dari Na-humat Dan Karakterisasinya Dengan Ftir [PDF]

, 2003
OPTlMASI EKSTRAKSI ASAM HUMAT DARI Na-HUMAT DAN KARAKTERISASINYA DENGAN FTIR. Telah dilakukan optimasi ekstraksi asam humat dari Na-humat dan karakterisasinya dengan FTIR.
Muzakky, M. (Muzakky), Sukirno, S. (Sukirno), Taftazani, A. (Agus)   +2 more
core   +2 more sources