catalytic action
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2021 ◽  
Vol 13 (17) ◽  
pp. 9813
Author(s):  
Ju Young Lee ◽  
Sandra Waddock

The challenges that are associated with the 17 United Nations sustainable development goals are wickedly complex and interconnected in nature. Because they require transformational changes at the systems level, the pace of change has, so far, been nowhere near fast enough to meet the goals by 2030. In this paper, we analyze the catalytic actions of a novel form of organizing that could potentially facilitate the timely achievement of transformational aspirations such as the SDGs: the transformation catalyst (TC). By identifying 27 TCs and analyzing their vision, mission, values, and their practices represented on their websites, we elaborate the following four key ways that TCs are distinctive from other entities, and therefore potentially more capable of facilitating transformational changes at the systems level: (1) TCs have transformation agendas that target systems-level solutions to bring about large-scale and fundamental changes in the relevant system(s), as opposed to more incremental or fragmented approaches; (2) TCs engage in catalytic actions, such as connecting, cohering, and amplifying the work of partners and collaborators; (3) TCs clearly acknowledge the current status quo, attributions, and urgency (i.e., sensemaking) of the issues on which they focus; and finally, (4) TCs embody systems orientation. In exploring how TCs work, we hope to build a solid conceptual framework for understanding the nature of transformative catalytic action on societal issues, and consolidate our understanding of what elements are needed if TCs are to work, providing a starting point for future research.


2021 ◽  
Vol 1 (1-2) ◽  
pp. 62-66
Author(s):  
A. R. Osipov ◽  
I. A. Sidorchik ◽  
V. A. Borisov ◽  
V. L. Temerev ◽  
D. A. Shlyapin

Transformations of methane-ethane, methane-ethylene, hydrogen-ethane and hydrogen-ethylene mixtures on an electrically heated resistive fechral catalyst were studied. During the transformations, the catalyst surface becomes covered with graphitic carbon deposits, which exertan additional catalytic action leading to the formation of C3 and C4 hydrocarbons. The formation of the indicated hydrocarbons proceeds most likely with the involvement of ethylene produced from ethane. The presence of hydrogen suppresses coking of the catalyst surface and decreases the yields of C3 and C4 hydrocarbons.


Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1145
Author(s):  
Peng Wang ◽  
Bunsho Ohtani

In order to clarify the reason of often reported low photocatalytic activity of rutile titania compared to that of anatase titania and the sluggish kinetics for oxygen reduction of rutile titania, in this study, faceted copper(I) oxide (Cu2O) particles (FCPs), i.e., cube, cuboctahedron and octahedron, were deposited onto rutile particles by an in-situ wet chemical method, and the co-catalytic action of FCPs was studied in the oxidative decomposition of acetic acid. The oxygen reduction reaction kinetics of bare and FCP-loaded titania samples in photodecomposition of organic compounds were investigated by light-intensity dependence measurement. FCPs serve as the specific sites (sink) which accumulate excited electrons to drive multielectron oxygen reduction reactions, as the counter reaction in photodecomposition of organic compounds by positive holes, which significantly improves the photocatalytic activity of rutile titania particles.


2020 ◽  
Vol 131 (1) ◽  
pp. 353-366
Author(s):  
Mahmoud Abdelhafiz ◽  
M. Yehia ◽  
Hosam E. Mostafa ◽  
Tamer Z. Wafy

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