Results 121 to 130 of about 7,636 (247)

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

Carbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee, Jagadis Gautam, Shrikant Vaiju Sadavar, Soo‐Jin Park   +3 more
wiley   +1 more source

3,4-Dihydroxybenzenesulfonyl-Functionalized Polyethyleneimine for Uranium Chelation

Polymers
3,4-dihydroxybenzenesulfonyl-functionalized polyethyleneimine (PS), a novel polymeric chelator, was synthesized by conjugating 3,4-dihydroxybenzenesulfonyl (CAM) groups with branched polyethyleneimine (BPEI, MW = 600 Da) via N-acylation. PS demonstrated a high uranium adsorption capacity of 78.08% at a concentration of 4 mg/mL, accompanied by ...
Kai Liang, Sifan Liu, Fan Zhang, Wenjin Cui, Ying Tian, Shuchen Liu, Lin Wang   +6 more
openaire   +2 more sources

Polymer Molecular Interface Engineering—Enhanced Cu‐Based Catalysts for the CO2 Electroreduction Reaction

Carbon Energy, EarlyView.
This review highlights polymer‐mediated interfacial engineering strategies for Cu‐based electrocatalysts toward enhanced CO2RR, including steering the electronic structure of Cu, enhancing CO2 adsorption and activation, regulating the reaction microenvironment, constructing a molecular protective layer, and stabilizing the key intermediate.
Haoquan Peng, Xinyi Tan, Yalin Xie, Jianren Wang, Zhourong Xiao, Ailing Song, Desong Wang, Liming Dai   +7 more
wiley   +1 more source

Applications of Biomaterials in Separators for Secondary Batteries

Carbon Energy, EarlyView.
In this review, biomaterial‐based separators are reviewed as sustainable alternatives to conventional polyolefin‐based separators. For 12 different natural polymers, spanning from Protista, Plantae, and Animalia, viable strategies for synthesizing biomass‐based separators are described.
Jongyoung Choi, Sung Cik Mun, Yong‐Seok Choi, Jong Ho Won   +3 more
wiley   +1 more source

A Study of Polyelectrolyte Complexes. Polyethyleneimine-Polyacrylate and Polyethyleneimine-Polyvinylsulfate

Denki Kagaku oyobi Kogyo Butsuri Kagaku, 1973
YUI, Norio, KUROKAWA, Yoichi, MIURA, Eigo   +2 more
openaire   +2 more sources

Experimental methods in chemical engineering: Temperature‐programmed desorption—TPD

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed desorption (TPD) characterizes the surface active sites of functional materials, such as adsorbents (metal hydrides, porous carbons, zeolites, metal–organic frameworks, for example) and catalysts. Solids surfaces are pre‐treated to remove moisture, contaminants, and previously adsorbed species, then a probe molecule (NH3$
Daniel A. Valdivieso‐Vera, Gregory S. Patience, M. Olga Guerrero‐Pérez   +2 more
wiley   +1 more source

Ionic Crosslinking of Linear Polyethyleneimine Hydrogels with Tripolyphosphate

Gels
In this work, the mechanical properties of hydrogels based on linear polyethyleneimine (PEI) chemically crosslinked with ethyleneglycoldiglycidyl ether (EGDE) were improved by the ionic crosslinking with sodium tripolyphosphate (TPP). To this end, the quaternization of the nitrogen atoms present in the PEI structure was conducted to render a network ...
Luis M. Araque, Antonia Infantes-Molina, Enrique Rodríguez-Castellón, Yamila Garro-Linck, Belén Franzoni, Claudio J. Pérez, Guillermo J. Copello, Juan M. Lázaro-Martínez   +7 more
openaire   +4 more sources

Polyelectrolyte Layer as a Work Function Modifier for Transparent Electrodes Enabling Efficient Perovskite Solar Cells With Superior Low‐Light Performance

EcoEnergy, EarlyView.
Polyelectrolytes represent a low‐cost and effective platform for tailoring charge extraction interfaces in inverted perovskite solar cells (PSCs). In this work, we introduce a protonated polyethyleneimine (PEI) layer (pH = 2) between the ITO electrode and the PTAA hole transport layer to increase the apparent work function of ITO by 0.066 eV and reduce
Aleksandra Furasova, Anna Botnar, Vladimir Ivanov, Vadim Belyaev, Igor Margaryan, Daniel Sapori, Aleksandra Koroleva, Soslan Khubezhov, Dmitry Shestakov, Ekaterina V. Skorb, Sergey V. Makarov   +10 more
wiley   +1 more source

Polyethyleneimine-functionalized boron nitride nanospheres as efficient carriers for enhancing the immunostimulatory effect of CpG oligodeoxynucleotides

, 2015
Huijie Zhang,1 Shini Feng,1 Ting Yan,1 Chunyi Zhi,2 Xiao-Dong Gao,1 Nobutaka Hanagata3,41The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, People’s Republic of
Hanagata N, Zhang HJ, Zhi CY, Feng SN, Gao X-D, Yan T   +5 more
core  

Specific targeting of human epidermal growth factor receptor 2 (HER2) overexpressing breast cancer cells by polyethylene glycol-grafted polyethyleneimine modified with anti-HER2 single-domain antibody

, 2017
Polyethyleneimine is one of the most efficient non-viral gene delivery agents. However, some limitations such as non-specific cell binding, interactions with blood components, and relatively high cytotoxicity restrict its in vivo applications.
Fatemeh Rahbarizadeh, Batoul Saqafi
core   +1 more source