167 citations · 176 across the 7 of their papers we have counts for
7 papers
How is Water released in Hydrogen-Based Metal Oxide Reduction? Unraveling the Kinetic Bottleneck in Sustainable Metal Production
Zhaoxi Chen, Yulu He, Zhuoran Yao +11
Hydrogen-based direct reduction of metal oxides is a ubiquitous solid-gas redox process central to geophysics, sustainable metallurgy, redox energy cycles and catalysis. During thi…
Mechanistic insights into hydrogen reduction of multicomponent oxides via in-situ high-energy X-ray diffraction
Shiv Shankar, Barak Ratzker, Claudio Pistidda +2
Co-reduction of multicomponent oxides with hydrogen provides a carbon-neutral approach toward sustainable alloy design. Herein, we investigate the hydrogen-based direct reduction,…
Sustainable Pre-reduction of Ferromanganese Oxides with Hydrogen: Heating Rate-Dependent Reduction Pathways and Microstructure Evolution
Anurag Bajpai, Barak Ratzker, Shiv Shankar +2
The reduction of ferromanganese ores into metallic feedstock is an energy-intensive process with substantial carbon emissions, necessitating sustainable alternatives. Hydrogen-base…
Hydrogen-based direct reduction of multicomponent oxides: Insights from powder and pre-sintered precursors toward sustainable alloy design
Shiv Shankar, Barak Ratzker, Yan Ma +1
The co-reduction of metal oxide mixtures using hydrogen as a reductant in conjunction with compaction and sintering of the evolving metallic blends offers a promising alternative t…
Unraveling the thermodynamics and mechanism behind the lowering of reduction temperatures in oxide mixtures
Shiv Shankar, Barak Ratzker, Alisson Kwiatkowski da Silva +5
Hydrogen-based direct reduction offers a sustainable pathway to decarbonize the metal production industry. However, stable metal oxides, like CrO, are notoriously difficult…
An atomic-scale view at Fe4N as hydrogen barrier material
Aleksander Albrecht, Sang Yoon Song, Chang-Gi Lee +9
Hydrogen, while a promising sustainable energy carrier, presents challenges such as the embrittlement of materials due to its ability to penetrate and weaken their crystal structur…
Sustainable steel through hydrogen plasma reduction of iron ore: process, kinetics, microstructure, chemistry
I. R. Souza Filho, Y. Ma, M. Kulse +4
Fe- and steelmaking is the largest single industrial CO2 emitter, accounting for 6.5% of all CO2 emissions on the planet. This fact challenges the current technologies to achieve c…