Results 71 to 80 of about 362,061 (261)

Gliceroquímica: novos produtos e processos a partir da glicerina de produção de biodiesel Glycerochemistry: new products and processes from glycerin of biodiesel production

Química Nova, 2009
Glycerol is a byproduct of biodiesel production through transesterification of oils and fat. This article discusses the chemical transformation of glycerol in ethers, acetals and esters of high technological applications, especially in the fuel sector ...
Claudio J. A. Mota, Carolina X. A. da Silva, Valter L. C. Gonçalves   +2 more
doaj   +1 more source

Decoupling the Size and Loading Effects in Silver Nanoparticles for Efficient Paired Carbon Dioxide and Formaldehyde Electrolysis

Advanced Functional Materials, EarlyView.
We investigate size‐dependent CO selectivity on Ag nanoparticles, where optimized Ag loading achieves nearly 100% Faradaic Efficiency for CO at −100 mA·cm−2. In situ SERS and XPS reveal the crucial role of optimized loading in catalytic performance. The Ag/C catalyst further exhibits bifunctional activity, enabling efficient electrolysis of CO2 and ...
Venkata S. R. K. Tandava, Clara Große, Debabrata Bagchi, Zhenye Zhu, Suptish Ghosh, J. Niklas Hausmann, Carsten Walter, Rosario Suarez Anzorena, Catalina Elena Jimenez, Yasmin Lucero Cobos‐Becerra, Jack C. Q. Fletcher, Tobias Sontheimer, Michael Schwarze, Holger Dau, Matthias Driess, Marcus Bär, Prashanth W. Menezes   +16 more
wiley   +1 more source

THE SYNTHESIS OF GLYCEROL CARBONATE FROM BIODIESEL BYPRODUCT GLYCEROL AND UREA OVER AMBERLYST 36

Jurnal Bahan Alam Terbarukan, 2017
The increasing use of biodiesel as renewable fuels leads to the increasing of glycerol amount as a byproduct of biodiesel production. One of the glycerol derivative products that is environmentally friendly and renewable is glycerol carbonate.
Astri Senania, Hary Sulistyo, Agus Prasetya   +2 more
doaj  

Production of glycerol carbonate by coupling glycerol and CO2 over various metal oxide catalyst

Journal of CO2 Utilization
A series of metal oxides, i.e., CuO、NiO、Co3O4、ZrO2、Al2O3, catalysts were prepared by hydrothermal method and evaluated in the production of glycerol carbonate by coupling of glycerol and CO2 under lower temperature.
Yi-Hu Ke, Huanhuan Xu, Xue Wang, Hai Liu, Hong Yuan   +4 more
doaj   +1 more source

Reactive pervaporation for valorisation of glycerol as glycerol carbonate

, 2022
Glycerol carbonate (GC) production plays an indispensable role in the valorisation of glycerol, which is a by-product of the production of biodiesels [1, 2].
Xu, Xiao, Luis Alconero, Patricia, Hartanto, Yusak, Euromembrane Conference 2022   +3 more
core  

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

Advanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng, TzuChun Chung, Katpady Akhil Tantry, Siyu Wu, Jing Tian, Yunqi Cui, Lanyu Li, Yongzan Zhou, Zhilei Zhang, Zhe Su, Gaili Cao, Kun‐Wei Yeh, Ruipeng Li, Xianghui Xiao, Adam F. G. Leontowich, Yuan‐Yu Hsueh, Zhao Pan, Kam C. Tam, Badri Narayanan, Song Li, Yimin. A. Wu   +20 more
wiley   +1 more source

Synthesis of glycerol carbonate from glycerol and dimethyl carbonate catalyzed by NaOH/γ-Al2O3

Fuel Processing Technology, 2013
Abstract The NaOH/γ-Al2O3 as catalyst for the synthesis of glycerol carbonate via transesterification of glycerol with dimethyl carbonate (DMC) has been developed in this work. It was found that NaOH/γ-Al2O3 was a highly efficient heterogeneous catalyst for the synthesis of glycerol carbonate and the catalyst can be easily recovered and recycled ...
Rongxian Bai, Yi Wang, Shu Wang, Fuming Mei, Tao Li, Guangxing Li   +5 more
openaire   +1 more source

Microwave assisted synthesis of glycerol carbonate from glycerol and urea

, 2017
The transformation of glycerol into value-added chemicals is an interesting topic in Green Chemistry. The glycerolysis of urea into glycerol carbonate is an important route of glycerol transformation.
Buxing Han, Lujun Zhang, Qingli Qian, Jun Ma, Zhaofu Zhang, Congyi Wu, Long Jiang   +6 more
core   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

Advanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong, Hongna Yuan, Shubo Liu, Abdulkadir Sanli, Emiliano Bilotti, Han Zhang, Pietro Cataldi, Karin Hing, Oliver Fenwick, Colin J. Humphreys, Dimitrios G. Papageorgiou   +10 more
wiley   +1 more source

An accelerated route of glycerol carbonate formation from glycerol using waste boiler ash as catalyst [PDF]

, 2014
Waste boiler ash was successfully utilised as catalyst for the direct synthesis of glycerol carbonate from glycerol and urea. A series of catalysts were prepared using various calcination temperatures.
Gaanty Pragas, Maniam, M. M., Yusoff, Zuhaimi, Nor Ain Syuhada, Deraman, Mohd Asyrak, Mohd Hasbi, Ab. Rahim, Taufiq Yap, Yun-Hin, Paroo Indran, Vidhyaa   +6 more
core   +2 more sources