Binding Zinc Ions by Carboxyl Groups from Adjacent Molecules toward Long‐Life Aqueous Zinc–Organic Batteries

2020 ◽  
Vol 32 (16) ◽  
pp. 2000338 ◽  
Author(s):  
Yanrong Wang ◽  
Caixing Wang ◽  
Zhigang Ni ◽  
Yuming Gu ◽  
Bingliang Wang ◽  
...  
Keyword(s):  
Carboxyl Groups ◽  
Zinc Ions ◽  
Long Life ◽  
Organic Batteries

scholarly journals Cover Feature: Natural Compounds Gallic Acid Derivatives for Long‐Life Li/Na Organic Batteries (ChemElectroChem 18/2019)

2019 ◽  
Vol 6 (18) ◽  
pp. 4707-4707
Author(s):  
Tianlai Xia ◽  
Yingqian Wang ◽  
Binshen Wang ◽  
Zhixiong Yang ◽  
Guangxing Pan ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Natural Compounds ◽  
Long Life ◽  
Organic Batteries

Nitrogen-Doped Hierarchical Porous Carbon-Promoted Adsorption of Anthraquinone for Long-Life Organic Batteries

2020 ◽  
Vol 12 (31) ◽  
pp. 34910-34918
Author(s):  
Tianxiang Zhu ◽  
Dongyu Liu ◽  
Lei Shi ◽  
Shiyao Lu ◽  
Yiyang Gao ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Hierarchical Porous Carbon ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Long Life ◽  
Organic Batteries

Binding of zinc cations to pectin and its oligomeric fragments

1983 ◽  
Vol 48 (11) ◽  
pp. 3154-3165 ◽  
Author(s):  
Anna Malovíková ◽  
Rudolf Kohn
Keyword(s):  
Human Body ◽  
Carboxyl Groups ◽  
Zinc Ions ◽  
Logarithmic Function ◽  
Polymerization Degree ◽  
Continuous Increase ◽  
The Stability ◽  
Esterification Degree ◽  
Zinc Cations ◽  
Degree Of Association

The activity of Zn2+ ions bound to carboxyl groups of pectin of esterification degree E 0 to 90% and to oligomeric potassium galacturonates of polymerization degree 1 to 7 was estimated by the metallochromic indicator (tetramethylmurexide) method. The zinc ions are stoichiometrically bound to pectin, one Zn2+ cation to two free carboxyl groups. The stability constant K of zinc pectinates strongly decreases with the increasing esterification degree in a relationship close to a linear logarithmic function, log K = f(E) similarly, as with the binding of Ca2+ ions to pectin. Pectin reveals a little higher selectivity to Zn2+ ions when considering this couple of cations. The zinc ions are bound to the monomeric D-galacturonic acid to a very low extent in contrast to some toxic cations as e.g. Pb2+, Cu2+, and Cd2+. A continuous increase of the degree of association of Zn2+ ions with carboxyl groups of oligomers takes place with the increasing polymerization degree. The validity of the increment additivity of terminal and inner uronic acid units to the final activity of zinc counterions bound to these oligomers was proved. The results are discussed from the standpoint of application of pectin as an active component of prophylactic diets against poisoning with cations of toxic metals with respect to the excretion of Zn2+ ions from the human body. Findings concerning the interaction of Zn2+ ions with pectin in dependence on its esterification degree (E) constitute a theoretical basis for a potential application of pectin as a useful ligand of Zn2+ ions in medical treatment of zinc deficiency in the human body.

Photoconductivity of ZnO Nanowires Decorated with CdSe Quantum Dots

2012 ◽  
Vol 1408 ◽  
Author(s):  
Dongchao Hou ◽  
Apurba Dev ◽  
Kristian Frank ◽  
Andreas Rosenauer ◽  
Tobias Voss
Keyword(s):  
Quantum Dots ◽  
Selective Excitation ◽  
Carboxyl Groups ◽  
Cdse Quantum Dots ◽  
Zinc Ions ◽  
Hybrid Assembly ◽  
Zno Nanowire ◽  
Cdse Qds ◽  
Partial Removal ◽  
Nanowire Surface

ABSTRACTA hybrid assembly was built using ZnO nanowire (NW) arrays and colloidal CdSe quantum dots (QDs) stabilized by 3-mercaptopropionic acid (MPA). The QDs were chemically linked to the nanowires through the bonds formed between the outgoing carboxyl groups of the QD stabilizers and the zinc ions on the nanowire surface. An efficient clustering attachment of the QDs was achieved via partial removal of the stabilizers of the QDs. The photoconductivity of the NW/QD assembly was investigated by selective excitation of the CdSe QDs. Oxygen desorption from the nanowire surface enhances the photoconductivity and a model involving electron transfer between the QDs and the nanowires is proposed to explain the experimental results.

Long-Life, High-Rate Lithium-Organic Batteries Based on Naphthoquinone Derivatives

2016 ◽  
Vol 28 (7) ◽  
pp. 2408-2416 ◽  
Author(s):  
Joungphil Lee ◽  
Hoon Kim ◽  
Moon Jeong Park
Keyword(s):  
High Rate ◽  
Long Life ◽  
Organic Batteries

Permselective metal–organic framework gel membrane enables long-life cycling of rechargeable organic batteries

2020 ◽  
Author(s):  
Songyan Bai ◽  
Byunghoon Kim ◽  
Chungryeol Kim ◽  
Orapa Tamwattana ◽  
Hyeokjun Park ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic ◽  
Long Life ◽  
Organic Batteries ◽  
Organic Framework

Salt-controlled dissolution in pigment cathode for high-capacity and long-life magnesium organic batteries

Nano Energy ◽  
2019 ◽  
Vol 65 ◽  
pp. 103902 ◽  
Author(s):  
Lianmeng Cui ◽  
Limin Zhou ◽  
Kai Zhang ◽  
Fangyu Xiong ◽  
Shuangshuang Tan ◽  
...  
Keyword(s):  
High Capacity ◽  
Long Life ◽  
Organic Batteries

Natural Compounds Gallic Acid Derivatives for Long‐Life Li/Na Organic Batteries

2019 ◽  
Vol 6 (18) ◽  
pp. 4765-4772 ◽  
Author(s):  
Tianlai Xia ◽  
Yingqian Wang ◽  
Binshen Wang ◽  
Zhixiong Yang ◽  
Guangxing Pan ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Natural Compounds ◽  
Long Life ◽  
Organic Batteries
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