Chemicals & Materials

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Flow of Solids in Bins, Hoppers, Chutes and Feeders

Instructor-led (classroom) Course

Gain a strong, fundamental understanding of bulk solids and bulk solid handling equipment and their behavior, along with the general principles and practical applications of solids flow.

Chem Economics: ACC Releases Portfolio of Specialty Chemicals Indexes

September

2012

Chem Economics

T. Kevin Swift

The American Chemistry Council (ACC) has launched a new set of indexes covering nearly 30 segments of the U.S. specialty chemicals market. (The first, which dealt with plastic additives, was discussed in the July issue, p. 13.) This is the first set...

Failure Mechanisms in Lithium Ion Batteries: Opportunities for Materials Development

AIChE Webinar

Sep 19, 2012

Dee Strand

This presentation will focus on the primary failure mechanisms for lithium ion batteries, how those mechanisms are affected by material selection, and vehicle applications for batteries and their future development.

Inorganic Catalytic Nanofibers for the Production of Hydrogen Via Alkaline Hydrolysis of Biomass

Oct 17, 2011

Nathaniel S. Hansen

Here we propose to develop a farm-scale biorefining system that can convert cellulosic biomass into useable hydrogen gas. In particular, we focus on the development of cost-effective procedures for biomass pretreatment and catalysts for alkaline hydrothermal treatment, which is less studied as...

Anisole and Guaiacol Deoxygenation Over Pt/Sn On Monolith Catalyst Supports

Oct 17, 2011

Miguel Angel Gonzalez Borja

Upgrading of pyrolysis oil vapors requires a catalytic reactor able to treat high reactant flow rates without generating a large pressure drop. Therefore, monolithic catalysts appear as good candidates for this purpose. In this contribution, low-surface-area Inconel monoliths were coated with in-...

Energy Efficiency of Battery Systems with Forced Convection Between Electrodes

Oct 17, 2011

Sun Ung Kim

The energy efficiency of an alkaline battery system with forced convective flow between the electrodes has been investigated. Rechargeable alkaline batteries, which depend on the reaction between zinc and manganese dioxide (Zn/MnO 2 ), have been widely used because of their excellent properties...

Ordered Mesoporous TiO2/ZnO Material for Hydrogen Production

Oct 17, 2011

Menan Hussein

Ordered mesoporous Zr-doped TiO 2 /ZnO material is currently being investigated for band gap tuning and higher loadings of photo-sensitizer. Utilization of such mesoporous materials thereby offers an opportunity to sensitize semiconductor with higher sensitizer loadings leading to effective charge...

Catalytic Hydrolysis of Ammonia Borane Using Co-B Nanoparticles Embedded In Mesoporous Silica Particles: a Very Efficient Catalyst for Hydrogen Production

Oct 17, 2011

Dushyant C. Kothari

Ammonia Borane (AB), with high hydrogen storage capacity (19.5 wt.%), is predicted to be possibly a future fuel for providing pure H 2 to fuel cell at room temperature for on-board and portable applications. However, a heterogeneous catalyst plays a vital role for first initiating and then...

The Effect of Fly Ash From Different Coal Sources On the Reactivity of An Iron-Based Oxygen Carrier for Chemical Looping Combustion

Oct 17, 2011

Aurora M. Rubel

The University of Kentucky, Center for Applied Energy Research is investigating oxygen carriers (OC) for chemical looping combustion (CLC) with the goal of developing a pressurized chemical looping combustion/gasification process for generating electricity from coal. An important issue in the...

Removal of Rhodamine B Dye with Fe/Mn Co-Doped Titania Nanotubes

Oct 17, 2011

Daniel H. Chen

Fe/Mn co-doped titania nanotubes has been synthesized by solution combustion followed by the hydrothermal treatment. Combustion synthesis has emerged as a facile and economically viable technique for the preparation of advanced ceramics, catalysts and nanomaterials. Stoichiometric amounts of...

Graphitic Material with Engineered Graphene Units for High-Power Li Ion Battery Electrodes

Oct 16, 2011

Cary M. Hayner

Li ion batteries capable of delivering a high current without sacrificing voltage or energy density are highly desirable, since they can be recharged faster and provide longer operation time when used in devices that demand high power. In the current generation of batteries using graphite as the...

Carbon Impact On Lithium-Sulfur Battery Performance

Oct 16, 2011

Galen Suppes

Several carbons were evaluated for supporting sulfur in a lithium sulfur battery. The carbon properties had a significant impact on performance.

Mechanism of Li Adsorption On Carbon Nanotube-Fullerene Hybrid System: A First-Principles Study

Oct 16, 2011

Seung Soon Jang

The lithium (Li) adsorption mechanism on the metallic (5,5) single wall carbon nanotube (SWCNT)-fullerene (C 60 ) hybrid material system is investigated using first-principles method. It is found that the Li adsorption energy (-2.649 eV) on the CNT-C 60 hybrid system is lower than that on the...

Novel Quaternary Ammonium Ionic Liquid Electrolyte for Stable, High Capacity Si Nanowire Based Li-Ion Battery

Oct 16, 2011

Vidhya Chakrapani

In recent years, there has been interest in silicon nanowires as an anode for Li-ion battery because of its large gravimetric capacity of 4200 mAh/g. 1D nanostructure are essential because they permit radial strain relaxation of mechanical stress which occurs due to the volumetric expansion (>...

Electrostatic Stabilization of Silicon Nanocrystal Colloids for Solution-Processed Photovoltaics

Oct 16, 2011

Lance M. Wheeler

The tunable optoelectronic properties of semiconductor nanocrystals (NCs) have garnered significant attention for photovoltaic device integration. Additionally, solution processing of semiconductor nanocrystals (NCs) provides a low-cost, scalable technique for the fabrication of third-generation...

Atomic Layer Deposition of Nanoscale Materials for Energy Conversion

Oct 16, 2011

Marja N. Mullings

For a number of technologies, including microelectronics and energy conversion devices, feature sizes are becoming increasingly small, and the need for precise control over costly materials continues to grow. In addition to decreasing length scales, it is important that limited natural resources...

Development of a Scalable Bottom-up Nanomanufacturing Platform for Highly Efficient Photovoltaics

Oct 16, 2011

Peng Jiang

Solar energy is clean, abundant, and renewable, yet it is vastly under-utilized in the current world. Although crystalline silicon solar cells are the premier candidate for renewable and environmentally friendly solar energy conversion, high manufacturing cost has prevented such cells from...

International Year of Chemistry

Virtual Local Section Webinar

Sep 22, 2011

Neil Gussman

Learn about the International Year of Chemistry (IYC 2011), a worldwide celebration of chemistry and its contributions to the well-being of humankind.

Carbon Nanotubes and Other Nanostructured Materials

Virtual Local Section Webinar

Jul 28, 2011

Daniel Resasco

The discovery of fullerenes in 1985 sparked the interest of researchers in novel crystalline forms of carbon.

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