Results 91 to 100 of about 2,534,122 (299)

Comparison of anionic membranes used to concentrate nitric acid to beyond the azeotropic mixture

The electrolysis of concentrated nitric acid solutions was carried out in an electrochemical cell with parallel plates (FM01-LC ICI). An anionic membrane that permits the migration of nitrate ions under the influence of an electrical field separated the ...
Field, Robert, Ponce de Leon, Carlos
core   +1 more source

Lattice Strain and Built‐In Field Synergistically Boost Urea Oxidation via Dynamic NiOOH Mediation at Multiphase Heterointerfaces

Advanced Materials, EarlyView.
A sulfur‐doped lignin‐derived carbon‐coated Ni‐NiO‐MoO2 nanorod array was synthesized, exhibiting enhanced UOR performance ‐ due to lattice‐strain and built‐in electric field effects by multiphase heterogeneous interface in Ni‐NiO‐MoO2@SC, excellent corrosion resistance, mass‐transport ability, and long‐term stability (500 mA cm−2 at 1.53 V for 500 h ...
Jiawei Li, Liancen Li, Guangfu Qian, Zishan Cai, Yiping Cao, Yihao Xu, Ruyu Zhang, Jinli Chen, Changzhou Chen, Panagiotis Tsiakaras   +9 more
wiley   +1 more source

Production and Characterization of Cellulose Acetate-Graphene Oxide Composite Membrane as Proton Exchange Membrane Fuel Cell

Indonesian Journal of Chemistry
The global energy crisis caused by dependence on fossil fuels has accelerated the search for renewable and sustainable energy sources, such as the proton exchange membrane fuel cell (PEMFC).
Riki Haryanto, Shafira Ayuningtyas, Pratiwi Pudjiastuti, Siti Wafiroh   +3 more
doaj   +1 more source

MnO2/SiO2-SO3H nanocomposite as hydrogen peroxide scavenger for durability improvement in proton exchange membranes

, 2010
Membrane durability was a key problem to the development of proton exchange membrane fuel cells (PEMFCs). A novel nanocomposite MnO2/SiO2-SO3H was prepared to mitigate the hydrogen peroxide attack to the membranes at fuel cell condition.
Zhang, H. M., Zhao, D., 衣宝廉, Yu, H. M., Yi, B. L.   +4 more
core   +1 more source

Spatial‐Compatibility‐Assisted Molecular Intercalation in MXenes

Advanced Materials, EarlyView.
This work demonstrates a solvent–free NH4F–mediated route for simultaneous Al removal and molecular intercalation in MXenes. Intercalants are selected by comparing their crystallographic X, Y, and Z dimensions with the MXene interlayer spacing, establishing a spatial‐compatibility criterion that rationalizes guest–host matching and enables predictive ...
Minhao Sheng, Xiaoqing Bin, Xiangyang Liu, Yingji Zhao, Wenxiu Que, Yusuke Asakura, Yusuke Yamauchi   +6 more
wiley   +1 more source

Ion-Exchange Membranes Based on Polynorbornenes with Fluorinated Imide Side Chain Groups

International Journal of Chemical Engineering, 2012
The electrochemical characteristics of cation-exchange membranes based on polynorbornenes with fluorinated and sulfonated dicarboximide side chain groups were reported.
Arlette A. Santiago, Joel Vargas, Mikhail A. Tlenkopatchev, Mar López-González, Evaristo Riande   +4 more
doaj   +1 more source

Research and developments of electrocatalysts and membranes for proton exchange membrane fuel cells

, 2011
The research progress in DICP of the electrocatalysts and membranes for proton exchange membrane (PEM) fuel cells will be presented here.The research progress in DICP of the electrocatalysts and membranes for proton exchange membrane (PEM) fuel cells ...
钟和香, 张华民
core  

Self‐Assembling Copolymers Encapsulating Single Endothelial Cells Induce Endogenous ECM Deposition and Vascular Regeneration

Advanced Materials, EarlyView.
This study presents the first demonstration of stable sub‐50‐micron single‐cell GPM vesicles fabricated through the intrinsic self‐assembly of an amphiphilic copolymer. Hierarchical assembly of cell containing GPM vesicles into microspheres enable tunable, sustained cell delivery with immune protection.
Viola B. Morris, Sangho Lee, Kalp Soni, Simon He, Matthew Huang, Dandan Chen, Dae Hoon Lee, Kyung Hee Kim, Seonggeon Cho, Laura Pencea, Divit Jain, Young‐Sup Yoon   +11 more
wiley   +1 more source

Properties and fuel cell performance of proton exchange membranes prepared from disulfonated poly(sulfide sulfone)

, 2008
A series of disulfonated poly(sulfide sulfone)s (SPSSF)s copolymers are synthesized via direct aromatic nucleophilic substitution polycondensation of 4,4'-dichlorodiphenylsulfone (DCDPS), 3,3'-disulfonate4,4'-dichlorodiphenylsulfone (SDCDPS) and 4,4 ...
Dai, Hua, Luo, Qingtao, Bi, Cheng, Zhang, Yu, 张华民, Zhang, Huamin   +5 more
core   +1 more source

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek, Seong Hyeon Kweon, Sun Gwan Cha, Se Jung Lee, Jinwoo Baek, Dong Hyeok Kwon, Hojeong Lee, Youngkook Kwon, Sang Kyu Kwak, Jong‐Beom Baek   +9 more
wiley   +1 more source