Non-corrosive green lubricants: strengthened lignin–[choline][amino acid] ionic liquids interaction via reciprocal hydrogen bonding

Mu, Liwen; Shi, Yijun; Guo, Xiao-Jing; Ji, Tuo; Chen, Long; Yuan, Ruixia; Brisbin, Logan; Wang, Huaiyuan; Zhu, Jiahua

doi:10.1039/c5ra11093a

Cited by 70 publications

(59 citation statements)

References 35 publications

(44 reference statements)

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“…The halogen-, sulfur-, and phosphorus-free ILs were more prone to form a physically adsorbed film on friction pairs. This result is in good agreement with those reported previously [23,24,30].…”

Section: Tribological Propertiessupporting

confidence: 83%

“…Several studies have reported the preparation of novel [Ch][AA] ILs, and their potential applications in various fields have been investigated [28,29]. Recently, Mu and coworkers have reported lignin- [Ch][AA] ILs as noncorrosive green lubricants [30]. Nevertheless, to the best of our knowledge, few systematic studies on the structure and properties of Ch-based ionic liquids as environmentally friendly lubricants have been reported.…”

Section: Introductionmentioning

confidence: 94%

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Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterials

et al. 2017

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Unlike most of the conventional ionic liquids (ILs) derived from non-renewable resources, five environmentally friendly ILs ([Ch][AA] ILs) derived from amino acids (AAs) and choline (Ch) were synthesized using biomaterials by a simple, green route: acid-base reaction of Ch and AAs. The thermal and corrosion properties, as well as viscosity, of the prepared ILs were examined. The results revealed that the anion structure of ILs plays a dominant role in their thermal and viscosity behavior. These ILs exhibited less corrosion toward copper, related to their halogen-, sulfur-, and phosphorus-free characteristics. The tribological behavior of the synthesized ILs was examined using a Schwingungs Reibung und Verschleiss tester, and the results indicated that these ILs exhibit good friction-reducing and anti-wear properties as lubricants for steel/steel contact. Results from energy-dispersive spectroscopy and X-ray photoelectron spectroscopy indicated that the good tribological properties of [Ch][AA] ILs are related to the formation of a physically adsorbed film on the metal surface during friction.

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Section: Tribological Propertiessupporting

confidence: 83%

Section: Introductionmentioning

confidence: 94%

Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterials

et al. 2017

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“…The addition of lignin enhanced the thermal stability and improved the antiwear properties and friction stability of steel. [176] The lubricating properties were further improved by introducing nitrogen and phosphorus elements into the lignin structure. This resulted in augmented hydrogen-bonding density between the additive and ionic liquids, which led to stronger adhesion of the lubricating layer to the metal surface.…”

Section: Other Applicationsmentioning

confidence: 99%

Lignin–Inorganic Interfaces: Chemistry and Applications from Adsorbents to Catalysts and Energy Storage Materials

2020

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Lignin is one the most fascinating natural polymers due to its complex aromatic‐aliphatic structure. Phenolic hydroxyl and carboxyl groups along with other functional groups provide technical lignins with reactivity and amphiphilic character. Many different lignins have been used as functional agents to facilitate the synthesis and stabilization of inorganic materials. Herein, the use of lignin in the synthesis and chemistry of inorganic materials in selected applications with relevance to sustainable energy and environmental fields is reviewed. In essence, the combination of lignin and inorganic materials creates an interface between soft and hard materials. In many cases it is either this interface or the external lignin surface that provides functionality to the hybrid and composite materials. This Minireview closes with an overview on future directions for this research field that bridges inorganic and lignin materials for a more sustainable future.

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“…Among others, Vladimir Totolin, Ichiro Minami, Pranesh Aswath, and Jun Qu have worked on halogen‐free ILs as base oils and additives, In this direction, Bharat Bhushan has provided a review on green molecular lubrication. Moreover, Yijun Shi has proposed noncorrosive green ILs, and Stefan Stolte has been working on the development of biological ILs for more than 10 years. Despite the intense work in the field, no systematic studies in relation to the performance and toxicity evaluation of ILs have been carried out.…”

Section: Introductionmentioning

confidence: 99%

The ecotoxicity and tribological properties of choline monocarboxylate ionic liquid lubricants

Fan

Zhang

et al. 2019

Lubrication Science

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In this work, a series choline monocarboxylate ionic liquids ([Ch][MA] ILs) were synthesized. The physicochemical properties and lubricating efficiency of the ILs on copper and aluminum discs were systematically investigated. At the same time, their ecotoxicity was explored on aquatic organisms. In comparison with 1‐butyl‐3‐methyl imidazolium tetrafluoroborate (L‐B104), which is a kind of traditional IL, [Ch][MA] ILs exhibited excellent lubricating properties and low toxicities, thus can be considered as environmentally friendly lubricants in tribology.

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Non-corrosive green lubricants: strengthened lignin–[choline][amino acid] ionic liquids interaction via reciprocal hydrogen bonding

Cited by 70 publications

References 35 publications

Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterials

Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterials

Lignin–Inorganic Interfaces: Chemistry and Applications from Adsorbents to Catalysts and Energy Storage Materials

The ecotoxicity and tribological properties of choline monocarboxylate ionic liquid lubricants

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