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Wenying Li

Bio: Wenying Li is an academic researcher from Tsinghua University. The author has contributed to research in topics: Electrolysis & Oxide. The author has an hindex of 13, co-authored 26 publications receiving 560 citations. Previous affiliations of Wenying Li include China Academy of Engineering Physics.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the co-electrolysis performance and mechanisms in solid oxide electrolysis cells at different operating temperature (550-750°C) was tested. And the results indicated that the coelectroliness performance for Ni-YSZ/ScSZ/LSM-ScSz electrolysis cell increases significantly with temperature, and the mass transfer gradually became the rate-determining step of the whole electrodes process below 750°C.

112 citations

Journal ArticleDOI
01 Jun 2014-Energy
TL;DR: In this paper, a two-dimensional model was developed to analyze the performance and efficiency of H 2 O/CO 2 co-electrolysis in tubular SOEC (solid oxide electrolysis cell).

90 citations

Journal ArticleDOI
TL;DR: An elementary reaction-based solid oxide electrolysis cell (SOEC) model that is coupled with cathodic elementary heterogeneous reactions and electrochemical elementary charge transfer reactions for a CO/CO 2 mixture gas is developed in this paper.

85 citations

Journal ArticleDOI
TL;DR: In this paper, a one-dimensional elementary reaction model of CO 2 /H 2 O co-electrolysis in solid oxide electrolysis cell (SOEC) coupled with heterogeneous elementary reactions, electrochemical reactions, electrode microstructure, and the transport of mass and charge is developed.

61 citations

Journal ArticleDOI
Wenying Li1, Yixiang Shi1, Yu Luo1, Yuqing Wang1, Ningsheng Cai1 
TL;DR: In this article, carbon deposition on patterned nickel/yttria stabilized zirconia (YSZ) electrode of solid oxide cells operating in CO 2 /CO mixture gas at 750 C with different discharging voltages was studied.

55 citations


Cited by
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Journal ArticleDOI
TL;DR: The motivation to develop CO2-based chemistry does not depend primarily on the absolute amount of CO2 emissions that can be remediated by a single technology and is stimulated by the significance of the relative improvement in carbon balance and other critical factors defining the environmental impact of chemical production in all relevant sectors in accord with the principles of green chemistry.
Abstract: CO2 conversion covers a wide range of possible application areas from fuels to bulk and commodity chemicals and even to specialty products with biological activity such as pharmaceuticals. In the present review, we discuss selected examples in these areas in a combined analysis of the state-of-the-art of synthetic methodologies and processes with their life cycle assessment. Thereby, we attempted to assess the potential to reduce the environmental footprint in these application fields relative to the current petrochemical value chain. This analysis and discussion differs significantly from a viewpoint on CO2 utilization as a measure for global CO2 mitigation. Whereas the latter focuses on reducing the end-of-pipe problem “CO2 emissions” from todays’ industries, the approach taken here tries to identify opportunities by exploiting a novel feedstock that avoids the utilization of fossil resource in transition toward more sustainable future production. Thus, the motivation to develop CO2-based chemistry does...

1,346 citations

Journal ArticleDOI
TL;DR: Chemical recycling of CO2 to renewable fuels and materials, primarily methanol, offers a powerful alternative to tackle both issues, that is, global climate change and fossil fuel depletion.
Abstract: Starting with coal, followed by petroleum oil and natural gas, the utilization of fossil fuels has allowed the fast and unprecedented development of human society. However, the burning of these resources in ever increasing pace is accompanied by large amounts of anthropogenic CO2 emissions, which are outpacing the natural carbon cycle, causing adverse global environmental changes, the full extent of which is still unclear. Even through fossil fuels are still abundant, they are nevertheless limited and will, in time, be depleted. Chemical recycling of CO2 to renewable fuels and materials, primarily methanol, offers a powerful alternative to tackle both issues, that is, global climate change and fossil fuel depletion. The energy needed for the reduction of CO2 can come from any renewable energy source such as solar and wind. Methanol, the simplest C1 liquid product that can be easily obtained from any carbon source, including biomass and CO2, has been proposed as a key component of such an anthropogenic carbon cycle in the framework of a “Methanol Economy”. Methanol itself is an excellent fuel for internal combustion engines, fuel cells, stoves, etc. It's dehydration product, dimethyl ether, is a diesel fuel and liquefied petroleum gas (LPG) substitute. Furthermore, methanol can be transformed to ethylene, propylene and most of the petrochemical products currently obtained from fossil fuels. The conversion of CO2 to methanol is discussed in detail in this review.

1,012 citations

Journal ArticleDOI
TL;DR: Gur et al. as discussed by the authors reviewed electrical energy storage technologies, materials and systems: challenges and prospects for large-scale grid storage, and provided a review of the current state of the art.
Abstract: Correction for ‘Review of electrical energy storage technologies, materials and systems: challenges and prospects for large-scale grid storage’ by Turgut M. Gur, Energy Environ. Sci., 2018, DOI: 10.1039/c8ee01419a.

659 citations

Journal ArticleDOI
TL;DR: Insight into CO2 electrochemical conversions, solid oxide cell material behaviors and degradation mechanisms are highlighted to obtain a better understanding of the high temperature electrolysis process in SOECs.
Abstract: High-temperature solid oxide electrolysis cells (SOECs) are advanced electrochemical energy storage and conversion devices with high conversion/energy efficiencies. They offer attractive high-temperature co-electrolysis routes that reduce extra CO2 emissions, enable large-scale energy storage/conversion and facilitate the integration of renewable energies into the electric grid. Exciting new research has focused on CO2 electrochemical activation/conversion through a co-electrolysis process based on the assumption that difficult CO double bonds can be activated effectively through this electrochemical method. Based on existing investigations, this paper puts forth a comprehensive overview of recent and past developments in co-electrolysis with SOECs for CO2 conversion and utilization. Here, we discuss in detail the approaches of CO2 conversion, the developmental history, the basic principles, the economic feasibility of CO2/H2O co-electrolysis, and the diverse range of fuel electrodes as well as oxygen electrode materials. SOEC performance measurements, characterization and simulations are classified and presented in this paper. SOEC cell and stack designs, fabrications and scale-ups are also summarized and described. In particular, insights into CO2 electrochemical conversions, solid oxide cell material behaviors and degradation mechanisms are highlighted to obtain a better understanding of the high temperature electrolysis process in SOECs. Proposed research directions are also outlined to provide guidelines for future research.

462 citations

Journal ArticleDOI
TL;DR: A brief overview on the effect of the nature and structure of the catalyst-electrode materials on the electrolyzer's performance can be found in this article, where past findings and recent progress in the development of efficient anode and cathode materials appropriate for large-scale water electrolysis are presented.

446 citations