Qiangu Yan
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View article: Surface Termination Engineering of 2D Titanium Carbides for Light-Activated Soft Robotics Applications
Surface Termination Engineering of 2D Titanium Carbides for Light-Activated Soft Robotics Applications Open
The transition metal carbide (TMC) Ti3C2Tx exhibits exceptional electrical conductivity, photothermal conversion, and mechanical flexibility. The latter two properties are useful for creating coatings that convert light into heat, which ca…
View article: Exploring nanomaterial-modified biochar for environmental remediation applications
Exploring nanomaterial-modified biochar for environmental remediation applications Open
Environmental pollution, particularly from heavy metals and toxic elements, poses a significant threat to both human health and ecological systems. While various remediation technologies exist, there is an urgent need for cost-effective an…
View article: High entropy oxides: New superior supports for single atom catalysts
High entropy oxides: New superior supports for single atom catalysts Open
Single Atom catalyst (SAC), a new frontier in heterogeneous catalyst design has evolved as a novel strategy to resolve the cost puzzle hindering the commercial scale applications of benchmark noble metal catalysts in various technologies. …
View article: Tuning thermal and graphitization behaviors of lignin <i>via</i> complexation with transition metal ions for the synthesis of multilayer graphene-based materials
Tuning thermal and graphitization behaviors of lignin <i>via</i> complexation with transition metal ions for the synthesis of multilayer graphene-based materials Open
Transition metals affect thermal stabilization and graphitization of kraft lignin and further determine morphology and graphitic structures of multilayer graphene-based materials.
View article: Cover Feature: Sodium‐Dictated Free‐Standing Lignin‐Carbon Electrode towards Ultrahigh Capacitance (Batteries & Supercaps 9/2023)
Cover Feature: Sodium‐Dictated Free‐Standing Lignin‐Carbon Electrode towards Ultrahigh Capacitance (Batteries & Supercaps 9/2023) Open
The Cover Feature illustrates valorization of biowaste lignin into free-standing porous carbon block coupled with alkali metals for supercapacitors to satisfy the societal need for energy. More information can be found in the Research Arti…
View article: Sodium‐Dictated Free‐Standing Lignin‐Carbon Electrode towards Ultrahigh Capacitance
Sodium‐Dictated Free‐Standing Lignin‐Carbon Electrode towards Ultrahigh Capacitance Open
Lignin is a waste product in the paper industry and lignocellulosic biorefineries, in addition to being the second most abundant renewable biopolymer on Earth. Valorization of useless lignin into high value‐added advanced materials not onl…
View article: Catalysts for converting syngas into liquid hydrocarbons and methods thereof
Catalysts for converting syngas into liquid hydrocarbons and methods thereof Open
The presently-disclosed subject matter includes methods for producing liquid hydrocarbons from syngas. In some embodiments the syngas is obtained from biomass and/or comprises a relatively high amount of nitrogen and/or carbon dioxide. In …
View article: Flexible Lumped Microwave Passive Components and Filters on Cellulose Nanofibril Substrates
Flexible Lumped Microwave Passive Components and Filters on Cellulose Nanofibril Substrates Open
Cellulose nanofibril (CNF) substrates that are inexpensive, biodegradable, and quickly incinerable, are potential substrates for disposable RF applications. In this paper, high-performance flexible microwave lumped elements and filters fab…
View article: A Study of the Key Factors on Production of Graphene Materials from Fe-Lignin Nanocomposites through a Molecular Cracking and Welding (MCW) Method
A Study of the Key Factors on Production of Graphene Materials from Fe-Lignin Nanocomposites through a Molecular Cracking and Welding (MCW) Method Open
In this work, few-layer graphene materials were produced from Fe-lignin nanocomposites through a molecular cracking and welding (MCW) method. MCW process is a low-cost, scalable technique to fabricate few-layer graphene materials. It invol…
View article: Pt-Promoted Tungsten Carbide Nanostructures on Mesoporous Pinewood-Derived Activated Carbon for Catalytic Oxidation of Formaldehyde at Low Temperatures
Pt-Promoted Tungsten Carbide Nanostructures on Mesoporous Pinewood-Derived Activated Carbon for Catalytic Oxidation of Formaldehyde at Low Temperatures Open
Tungsten carbide (WC) nanostructures were prepared by carbothermal reduction (CR) of tungsten-impregnated pinewood-derived activated carbon (AC) at 1000 °C under an inert atmosphere. Brunauer-Emmet-Teller (BET) surface area, pore structure…
View article: Thermal stability of metal-lignin composites prepared by coprecipitation method
Thermal stability of metal-lignin composites prepared by coprecipitation method Open
In present work, Fe-lignin composites were prepared by chemical coprecipitation of metal salts and kraft lignin; the thermal stability of the Fe-lignin mixture was then investigated at temperatures up to 300 °C using thermogravimetric anal…
View article: Effect of Solvents on Fe–Lignin Precursors for Production Graphene-Based Nanostructures
Effect of Solvents on Fe–Lignin Precursors for Production Graphene-Based Nanostructures Open
Kraft lignin was catalytically graphitized to graphene-based nanostructures at high temperature under non-oxidative atmospheres. To obtain the best catalytic performance, a uniform catalyst–lignin mixture must be made by bonding transition…
View article: Efficient Conversion of Lignin Waste to High Value Bio-Graphene Oxide Nanomaterials
Efficient Conversion of Lignin Waste to High Value Bio-Graphene Oxide Nanomaterials Open
Lignin graphene oxide was oxidized after Kraft lignin was graphitized by thermal catalytic conversion. The reduced lignin graphene oxide was derived from lignin graphene oxide through thermal reduction treatment. These Kraft lignin, lignin…
View article: Synthetic Bio-Graphene Based Nanomaterials through Different Iron Catalysts
Synthetic Bio-Graphene Based Nanomaterials through Different Iron Catalysts Open
Kraft lignin was catalytically graphitized to graphene-based nanostructures at 1000 °C under argon atmosphere with four iron catalysts, iron(III) nitrate (Fe-N); iron(II) chloride (Fe-Cl2); iron(III) chloride (Fe-Cl3); and iron(II) sulfate…
View article: Thermal Decomposition of Kraft Lignin under Gas Atmospheres of Argon, Hydrogen, and Carbon Dioxide
Thermal Decomposition of Kraft Lignin under Gas Atmospheres of Argon, Hydrogen, and Carbon Dioxide Open
The behaviors of thermal decomposition of kraft lignin under three different gases (Ar, CO2, or H2) were analyzed and compared using a temperature-programmed decomposition-mass spectrometry (TPD-MS) system. Experimental results indicated t…
View article: Carbon-Based Nanomaterials from Biopolymer Lignin via Catalytic Thermal Treatment at 700 to 1000 °C
Carbon-Based Nanomaterials from Biopolymer Lignin via Catalytic Thermal Treatment at 700 to 1000 °C Open
We report the preparation of carbon-based nanomaterials from biopolymer kraft lignin via an iron catalytic thermal treatment process. Both the carbonaceous gases and amorphous carbon (AC) from lignin thermal decomposition were found to hav…
View article: Effects of Physical and Chemical States of Iron-Based Catalysts on Formation of Carbon-Encapsulated Iron Nanoparticles from Kraft Lignin
Effects of Physical and Chemical States of Iron-Based Catalysts on Formation of Carbon-Encapsulated Iron Nanoparticles from Kraft Lignin Open
Effects of physical and chemical states of iron-based catalysts on the formation of carbon-encapsulated iron nanoparticles (CEINs) synthesized thermally from kraft lignin were investigated. Experimental results indicated that if solution-b…
View article: In situ formation of graphene-encapsulated iron nanoparticles in carbon frames through catalytic graphitization of kraft lignin
In situ formation of graphene-encapsulated iron nanoparticles in carbon frames through catalytic graphitization of kraft lignin Open
Multilayer graphene-encapsulated iron nanoparticles in carbon frames were prepared through catalytic graphitization of kraft lignin as carbon sources using irons as the catalyst at the temperature of 1000°C under argon atmosphere. The effe…
View article: Carbon Nanostructure of Kraft Lignin Thermally Treated at 500 to 1000 °C
Carbon Nanostructure of Kraft Lignin Thermally Treated at 500 to 1000 °C Open
Kraft lignin (KL) was thermally treated at 500 to 1000 °C in an inert atmosphere. Carbon nanostructure parameters of thermally treated KL in terms of amorphous carbon fraction, aromaticity, and carbon nanocrystallites lateral size (La), th…
View article: Direct Conversion Biogas to Multiwall Carbon Nanotubes and Syngas over Starch Derived Ni@C Nanoparticles
Direct Conversion Biogas to Multiwall Carbon Nanotubes and Syngas over Starch Derived Ni@C Nanoparticles Open
Journal Article Direct Conversion Biogas to Multiwall Carbon Nanotubes and Syngas over Starch Derived Ni@C Nanoparticles Get access Qiangu Yan, Qiangu Yan Department of Agricultural and Biological Engineering, Mississippi State University,…
View article: Synthesis and Characterization of Carbon Nanospheres Obtained by Hydrothermal Carbonization of Wood-derived and Other Saccharides
Synthesis and Characterization of Carbon Nanospheres Obtained by Hydrothermal Carbonization of Wood-derived and Other Saccharides Open
Carbon nanospheres were synthesized by hydrothermal carbonization (HTC) of four different carbon sources: xylose, glucose, sucrose, and pine wood derived saccharides. The obtained carbon nanospheres were characterized for particle morpholo…