From waste tire to high value-added chemicals: an analytical Py-GC/TOF–MS study

Waste rubber retains good elasticity and can be regenerated for use in special applications. In this research, wood fiber composites were made with waste tire powders (WTPs) as functional fillers. The physical-mechanical properties of the wood-rubber composite (WRC) panels, i.e., inner bond (IB) strength, static bending modulus (MOE), strength (MOR), and thickness swelling (TS) were assessed. The surface micro-morphology of the WRC panels was quantitatively analyzed and was graphically simulated with Matlab software. The results showed that WTPs decreased the mechanical strength and modulus of the hybrid composites, which was caused by the weak fiber/WTP interfacial adhesion. The addition of WTPs roughened the surface of composite panels. However, WRC panels showed improved hygroscopic stability and flexibility compared to pure wood fiber composites. Sanding can flatten the rougher WRC panel surface; however, it brings tiny pits to the surface that are caused by loss of rubber powders. Surface overlaying with resin impregnated paper was found to be effective to cover the tiny pits. This study showed that it is feasible to make value added rubber filled wood fiber composites with satisfactory performance.

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Conversion of Waste Tire Rubber into High-Value-Added Carbon Supports for Electrocatalysis

Journal of The Electrochemical Society ◽

10.1149/2.1081813jes ◽

2018 ◽

Vol 165 (14) ◽

pp. H881-H888 ◽

Cited By ~ 4

Author(s):

Zachary D. Hood ◽

Xuan Yang ◽

Yunchao Li ◽

Amit K. Naskar ◽

Miaofang Chi ◽

...

Keyword(s):

Value Added ◽

Carbon Supports ◽

Tire Rubber ◽

Waste Tire ◽

Waste Tire Rubber

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Sustainable Waste Tire Derived Carbon Material as a Potential Anode for Lithium-Ion Batteries

Sustainability ◽

10.3390/su10082840 ◽

2018 ◽

Vol 10 (8) ◽

pp. 2840 ◽

Cited By ~ 9

Author(s):

Joseph Gnanaraj ◽

Richard Lee ◽

Alan Levine ◽

Jonathan Wistrom ◽

Skyler Wistrom ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Automobile Industry ◽

Carbon Material ◽

Carbon Particle ◽

Value Added ◽

Lithium Ion ◽

Reversible Capacity ◽

Rechargeable Batteries ◽

Fuel Oil ◽

Waste Tire

The rapidly growing automobile industry increases the accumulation of end-of-life tires each year throughout the world. Waste tires lead to increased environmental issues and lasting resource problems. Recycling hazardous wastes to produce value-added products is becoming essential for the sustainable progress of society. A patented sulfonation process followed by pyrolysis at 1100 °C in a nitrogen atmosphere was used to produce carbon material from these tires and utilized as an anode in lithium-ion batteries. The combustion of the volatiles released in waste tire pyrolysis produces lower fossil CO2 emissions per unit of energy (136.51 gCO2/kW·h) compared to other conventional fossil fuels such as coal or fuel–oil, usually used in power generation. The strategy used in this research may be applied to other rechargeable batteries, supercapacitors, catalysts, and other electrochemical devices. The Raman vibrational spectra observed on these carbons show a graphitic carbon with significant disorder structure. Further, structural studies reveal a unique disordered carbon nanostructure with a higher interlayer distance of 4.5 Å compared to 3.43 Å in the commercial graphite. The carbon material derived from tires was used as an anode in lithium-ion batteries exhibited a reversible capacity of 360 mAh/g at C/3. However, the reversible capacity increased to 432 mAh/g at C/10 when this carbon particle was coated with a thin layer of carbon. A novel strategy of prelithiation applied for improving the first cycle efficiency to 94% is also presented.

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Sustainable 2,5-furandicarboxylic synthesis by a direct 5-hydroxymethylfurfural fuel cell based on a bifunctional PtNiSx catalyst

Chemical Communications ◽

10.1039/d0cc06087a ◽

2020 ◽

Vol 56 (88) ◽

pp. 13611-13614

Author(s):

Jialu Wang ◽

Xian Zhang ◽

Guozhong Wang ◽

Yunxia Zhang ◽

Haimin Zhang

Keyword(s):

Fuel Cell ◽

Electric Energy ◽

Value Added ◽

Chemical Energy ◽

New Type

A new type of direct 5-hydroxymethylfurfural (HMF) oxidation fuel cell based on a bifunctional PtNiSx/CB catalyst not only transformed chemical energy into electric energy but also converted HMF into value-added 2,5-furandicarboxylic (FDCA).

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