Results 41 to 50 of about 2,550,084 (285)

Supercritical water synthesis of nano-particle catalyst on TiO2 and its application in supercritical water gasification of biomass

Journal of Experimental Nanoscience, 2017
Hydrogen production by catalytic gasification in supercritical water (SCW) is a promising way to utilise biomass resource. Supercritical water not only provides homogeneous and rapid reaction environment for the biomass gasification but also causes ...
Hui Jin, Xiao Zhao, Zhenqun Wu, Changqing Cao, Liejin Guo   +4 more
doaj   +1 more source

A novel spiral infinity reactor for continuous hydrothermal synthesis of nanoparticles

Scientific Reports, 2022
Hydrothermal synthesis is an attractive route to make nanoparticles utilizing inexpensive precursors under moderate process conditions. Though it provides flexibility and robustness in controlling particle characteristics, process scale-up for continuous
Arjun Kumar Pukkella, Naga Ravikumar Varma Nadimpalli, Venkataramana Runkana, Sivakumar Subramanian   +3 more
doaj   +1 more source

Continuous Hydrothermal Flow Synthesis and Characterisation of Nano-Bioceramics and their Rapid Consolidation Using Spark Plasma Sintering [PDF]

, 2008
PhDAccidents, surgery and disease often result in the use of biomimetic materials that can replace human hard tissue and calcium phosphate bioceramics are ideally suited for this purpose.
Chaudhry, Aqif Anwar
core   +4 more sources

Valence-tuned electron bridge enables high-yield multi-electron HMF oxidation over spinel catalysts

Nature Communications
The catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid is a key step in the production of bio-based plastics but remains limited by sluggish multi-electron transfer kinetics across multiple reaction intermediates. In this study,
Zhong-Ting Hu, Gan He, Xiaohuan Tao, Jinshu Tian, Mingwu Tan, Ni Ouyang, Jun-Long Li, Mian Hu, Jie-Xin Wang, Yihan Zhu, Dapeng Cao, Zhiyan Pan, Yong Wang, Xiaonian Li   +13 more
doaj   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Oxidation of metallic Cu by supercritical CO2 and control synthesis of amorphous nano-metal catalysts for CO2 electroreduction

Nature Communications, 2023
Amorphous metal catalysts often exhibit appealing catalytic properties, however, accurate control synthesis of amorphous nano-metal catalysts is a challenge.
Chunjun Chen, Xupeng Yan, Yahui Wu, Xiudong Zhang, Shoujie Liu, Fanyu Zhang, Xiaofu Sun, Qinggong Zhu, Lirong Zheng, Jing Zhang, Xueqing Xing, Zhonghua Wu, Buxing Han   +12 more
doaj   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

Advanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela, Sergio Triviño‐Sánchez, Andrés Guerrero‐Martínez, Luis M. Liz‐Marzán, Guillermo González‐Rubio   +4 more
wiley   +1 more source

Transesterification of Vegetables oil using Sub-and Supercritical Methanol [PDF]

, 2012
A benign process, non catalytic transesterification in sub and supercritical methanol method was used to prepare biodiesel from vegetables oil. The experiment was carried out in batch type reactor (8.8 ml capacity, stainless steel, AKICO, JAPAN) by ...
W, Wahyudiono, S, Suprapto, Siti , Machmudah, Achmad , Roesyadi, Nyoman , Puspa Asri, Mitsuru , Sasaki, Kusno , Budikarjono, Motonobu , Goto   +7 more
core   +1 more source

Synthesis of Biodiesel in Microstructured Reactors under Supercritical Reaction Conditions

Chemical Engineering Transactions, 2014
At IMM the advantages of an alternative synthesis route for biodiesel under supercritical conditions in micro-structured reactors applying heterogeneous catalysts are currently under investigation. Target of the development work is to build a pilot plant
J. Schuerer, R. Thiele, O. Wiborg, A. Ziogas, G. Kolb   +4 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source