Results 91 to 100 of about 3,205,118 (301)

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

Catastrophic localized deflagration formation mechanisms and safety precautions in proton exchange membrane water electrolyzer

Nature Communications
Proton exchange membrane water electrolysis attracts worldwide attention as a promising technology for green H2 production and renewable energy storage, yet the safety considerations in the industrial-scale operations are largely overlooked.
Aidong Tan, Jiayi Song, Xutao Qiu, Zhang Liu, Lifan Xia, Chen Ju, Feng Zhao, Gang Li, Xiaoyun Shi, Tingting Li, Ping Liu, Jianguo Liu   +11 more
doaj   +1 more source

Preparation and Proton Exchange Properties of GO Grafting modified Cross-linked Membranes

International Journal of Electrochemical Science, 2018
The cross-linked membranes were prepared with DS 68% SPEEK and epoxy resin. Sulfonated graphite oxide was grafted into SPEEK main bonds to study the sulfonic acid groups on the impact of proton exchange properties. Using solartron electrochemical testing
Zhengping Zhao, Chenyu Pan, Guojun Jiang, Mingqiang Zhong, Benhua Fei   +4 more
doaj   +1 more source

Nitrogen-doped carbon electrocatalysts for proton exchange membrane fuel cells

, 2012
Nitrogen-doped carbon electrocatalysts for proton exchange membrane fuel ...
钟和香, 张华民
core  

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

CytroCell@Nafion: Enhanced Proton Exchange Membranes

Global Challenges
We investigate the use of lemon CytroCell as new biobased filler for Nafion-based proton exchange membranes. Pristine and composite membranes were prepared via casting and solvent evaporation technique. CytroCell was added up to 20 wt% with respect the polymer in an hydroalcoholic solution of Nafion perfluorosulfonic acid ionomer.
Daria Talarico, Enrica Fontananova, Teresa Sibillano, Rosaria Ciriminna, Stefania Palermo, Francesco Galiano, Gianluca Di Profio, Alberto Figoli, Giovanna Li Petri, Giuseppe Angellotti, Francesco Meneguzzo, Cinzia Giannini, Mario Pagliaro   +12 more
openaire   +2 more sources

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

Interannular proton exchange in protonated long-chain 1, [omega]-diphenylalkanes [PDF]

, 1985
Kuck D, Bäther W, Grützmacher H-F. Interannular proton exchange in protonated long-chain 1, [omega]-diphenylalkanes. International Journal of Mass Spectrometry and Ion Processes.
Bäther, Wolfgang, Wolfgang Bäther, Grützmacher, Hans-Friedrich, Dietmar Kuck, Kuck, Dietmar, Hans-Fr. Grützmacher   +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

Research and Developments of Electrocatalysts and Membranes for Proton Exchange Membrane Fuel Cells

, 2009
Proton exchange membrane (PEM) fuel cells are very prospective alternative energy conversion devices for mobile and stationary application because of their high conversion efficiency and near zero emissions.
钟和香, 张华民, 张宇
core