Surfactant ‐modified electrode–electrolyte interface for steering CO2 electrolysis on Cu electrodes
AbstractCu-based catalysts exhibit the unique ability to generate high-order products from electrochemical CO2 reduction reaction (CO2RR). The performance of electrochemical systems is jointly influenced by the catalysts and local microenvironment of the electrode –electrolyte interface. Here, Cu nanowires as a model catalyst, in combination with cetyl trimethyl ammonium bromide (CTAB) as electrolyte additives, are designed to steer CO2RR. By using the Cu rotating disc electrode andin situ vibrational spectroscopy, it is revealed that the hydrophobic interface microenvironment is built, and the interaction of interfacial...
Source: AIChE Journal - October 18, 2023 Category: Science Authors: Lei Dong, Wangxin Ge, Yu Fan, Wenfei Zhang, Hongliang Jiang, Yongqing Zhao, Chunzhong Li Tags: RESEARCH ARTICLE Source Type: research

Integrating process and power grid models for optimal design and demand response operation of giga ‐scale green hydrogen
This article presents a framework for the optimization of a large-scale, electricity-powered hydrogen production facility considering its integration with the power grid. Using a computational case study, we present an iterative scheme for integrating the process model wi th a model for power grid optimization and capacity expansion, taking the popular GenX model as an example. (Source: AIChE Journal)
Source: AIChE Journal - October 17, 2023 Category: Science Authors: Calvin Tsay, Staffan Qvist Tags: RESEARCH ARTICLE Source Type: research

Expanding the toolbox for development of metal ‐based dual‐functional catalytic membranes
AbstractCatalytic membranes offer opportunities to develop modular, process-intensified units. Dual-functional materials, which integrate reactive and separation components in a single material, could play an important role in enabling them. Adapting the various characterization tools that are used to analyze the structures of metal-based catalysts to these integrated structures could provide vital information for their design and implementation. In this perspective, we highlight the ways in which these tools can be used to analyze nonreactive membranes and non-integrated systems where the catalyst and the membrane operate...
Source: AIChE Journal - October 14, 2023 Category: Science Authors: Mihir Kulkarni, Deepanjali Roy, Nhan H. Khuu, Oishi Sanyal, Madelyn R. Ball Tags: PERSPECTIVE Source Type: research