Articles with "acid base" as a keyword



Atomically Dispersed Ga Synergy Lewis Acid‐Base Pairs in F‐doped Mesoporous Cu2O for Efficient Eletroreduction of CO2 to C2+ Products

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202404274

Abstract: Electroreduction of CO2 into high‐value chemicals and fuels driven is an effective way to alleviate the environmental crisis, but it suffers from poor activity and low selectivity of the catalyst. Single‐atom catalysts have excellent selectivity… read more here.

Keywords: base pairs; co2; lewis acid; co2 products ... See more keywords

Core‐Shell Faujasite@Aqueous Miscible Organic‐Layered Double Hydroxides Composites with Tunable Acid/Base Properties for One‐Pot Synthesis of Ethyl trans‐α‐Cyanocinnamate

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Published in 2021 at "Advanced Materials Interfaces"

DOI: 10.1002/admi.202002259

Abstract: Bifunctional acid‐base catalysts have been developed by fabricating core‐shell faujasite@aqueous miscible organic‐layered double hydroxides (FAU@AMO‐LDHs) composites via the growth of AMO‐LDHs on zeolite surfaces. Interestingly, by adjusting the acid/base properties of the composites, the one‐pot… read more here.

Keywords: ethyl trans; acid base; base; shell faujasite ... See more keywords

Ultrafast Self‐Charging in Acid–Base Free Aqueous Rechargeable Zinc–Quinhydrone Batteries

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Published in 2024 at "Advanced Energy Materials"

DOI: 10.1002/aenm.202401257

Abstract: In the field of energy technologies, self‐charging batteries are receiving extensive attention. However, the existing technologies are highly dependent on the available sources of O2, have long self‐charging duration, and have complex architectures. Herein, a… read more here.

Keywords: capacity; quinhydrone; self charging; base free ... See more keywords

A novel highly sensitive test reaction for micromixing: Acid‐base neutralization and alkaline hydrolysis of ethyl oxalate

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Published in 2024 at "AIChE Journal"

DOI: 10.1002/aic.18615

Abstract: Micromixing in chemical reactors can be characterized through test reactions that are sensitive to mixing. A new pair of parallel competitive reactions, including acid–base neutralization and diethyl oxalate hydrolysis, is proposed in this work. It… read more here.

Keywords: reaction; base neutralization; test; alkaline hydrolysis ... See more keywords

Design of Boronic Acid–Base Complexes as Reusable Homogeneous Catalysts in Dehydrative Condensations between Carboxylic Acids and Amines

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Published in 2017 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.201700194

Abstract: Two novel boronic acid–base complexes were developed as reusable homogeneous catalysts for amide condensation. First, quaternary ammonium resin-bound boronates were shown to be effective catalysts that might release free boronic acids during reactions and could… read more here.

Keywords: base complexes; chemistry; acid base; boronic acid ... See more keywords

Preparation of recyclable polybutadiene rubber based on acid–base complexation

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Published in 2017 at "Journal of Applied Polymer Science"

DOI: 10.1002/app.45280

Abstract: Thermoreversible polybutadiene (PB) rubber is prepared by the self-assembly of thiol-ene functionalized PB oligomers containing amine and carboxylic acid groups, respectively, via acid–base reaction. The as-formed ionic hydrogen bonds between the amine and carboxylic acid… read more here.

Keywords: polybutadiene rubber; acid base; preparation recyclable;

Modulating Properties of Pure ZrO2 for Structure–activity Relationships in Acid‐base Catalysis: Contribution of the Alginate Preparation Route

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201700171

Abstract: Structure–activity relationships in heterogeneous catalysis demand the development of original preparation routes to create catalyst sets with extended surface properties. Pure zirconia is a bifunctional catalyst which shows a high versatility in acid‐base catalysis. The… read more here.

Keywords: alginate; catalysis; acid base; base ... See more keywords

Relationship between Acid–Base Properties and the Activity of ZrO2‐Based Catalysts for the Cannizzaro Reaction of Pyruvaldehyde to Lactic Acid

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201700305

Abstract: The Cannizzaro reaction of pyruvaldehyde to lactic acid is investigated in a flow reactor with ZrO2 catalysts with different structures and acid–base properties. The results show that a difference in the crystalline structures of two… read more here.

Keywords: reaction pyruvaldehyde; pyruvaldehyde lactic; acid base; cannizzaro reaction ... See more keywords

Synergistic Catalysis by MgO Induced Acid‐Base Bifunctional Sites for Cross Condensation of HCHO and Acetaldehyde

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Published in 2024 at "ChemCatChem"

DOI: 10.1002/cctc.202400441

Abstract: Acid‐base synergistic catalysis greatly enhances the performance of MgO‐based catalysts in the Aldol condensation. In this paper, the effect of acid‐base strength/concentration/proportion and the synergistic catalysis on the performance of cross condensation between HCHO and… read more here.

Keywords: condensation hcho; synergistic catalysis; condensation; acid base ... See more keywords

Generalization of Acid‐Base Diagrams Based on the Unified pH‐Scale

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Published in 2019 at "Chemphyschem"

DOI: 10.1002/cphc.201900388

Abstract: Abstract So far, pH‐lgc i diagrams have been exclusively used for the theoretical description of acid‐base equilibria in aqueous solutions. Here, this approach is extended to include acid‐base equilibria in nonaqueous non‐hydrogen‐bond‐donor (non‐HBD) solvents following… read more here.

Keywords: generalization acid; acid base; base; unified scale ... See more keywords

A Self-Assembled Peptide-Appended Naphthalene Diimide: A Fluorescent Switch for Sensing Acid and Base Vapors.

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Published in 2019 at "ChemPlusChem"

DOI: 10.1002/cplu.201900577

Abstract: A histidine-containing bola-amphiphilic molecule (NDIP) containing a peptide-appended naphthalenediimide (NDI) forms fluorescent hydrogels in phosphate buffer and organogels with benzenoid solvents. These gels were characterized by several spectroscopic and microscopic techniques including FT-IR, HR-TEM, powder… read more here.

Keywords: base vapors; peptide appended; acid base; self assembled ... See more keywords