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- 저자 : Yang Yingkui (검색결과 2 건)
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WILLINGNESS TO BUY GREEN ELECTRICITY: DO CONSUMERS RESPOND DIFFERENTLY?
Yingkui Yang 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7
Deregulation of electricity market has brought new business opportunities for electricity suppliers. As of 2011, there are around 60 electricity retailers in the Danish market competing against each other (Yang, 2013). Thus, Danish households have the opportunities to choose different electricity services, green electricity services vs. the conventional brown electricity (generated from fossil fuels) service. However, statistics have indicated that the movement of electricity market deregulation has produced little effect on Danish consumers in terms of switching among suppliers or renegotiating an existing service contract (Yang, 2014). Unfortunately, evidences from the actual market show that the penetration of green electricity remains very low (Yang, 2013). This is bad, because Denmark’s long-term energy goal is to become a fossil fuel independent nation by 2050. The study divided a sample 1022 respondents into two nearly equal sized sub-samples chosen from an Internet Panel administrated by a commercial marketing research firm. One subsample received a positive frame version of the questionnaire regarding subscribing to a green electricity contract, and the other subsample received a negative frame version of the questionnaire. The selected sample reflects the Danish population structure in terms of the major socio-economic variables such as gender and age. Contingent valuation (CV) method was used to value the households’ willingness to subscribe a green electricity service contract (Alberini & Kahn, 2006). As expected, consumers displayed stronger intention to buy green electricity when the situation was framed in a positive maner (i.e., most Danish households have already bought it), as compared to the situation was framed in a negative manaer. The theoretical explaning can be formulated in terms of the theory of social norms. The framing effect also signals the public good side of green electricity in that there seems to be a free rider problem. The relatively low intention to buy green electricity in the negative frame manner (i.e., a few Danish household has bought green electricity) indicates that the free-rider incentive is particularly powerful in large group, where an indivudal may percived that her or his behavior will have only little influence on the collective outcome (Olsen, 1970). The results confimrs the finding from (Ek & So?derholm, 2008).
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Cui Xun,Gao Likun,Lu Cheng-Hsin,Ma Rui,Yang Yingkui,Lin Zhiqun 나노기술연구협의회 2022 Nano Convergence Vol.9 No.34
Single-metal-atom catalysts (SMACs) have garnered extensive attention for various electrocatalytic applications, owing to their maximum atom-utilization efficiency, tunable electronic structure, and remarkable catalytic performance. In particular, carbon-based SMACs exhibit optimal electrocatalytic activity for the oxygen reduction reaction (ORR) which is of paramount importance for several sustainable energy conversion and generation technologies, such as fuel cells and metal-air batteries. Despite continuous endeavors in developing various advanced carbon-based SMACs for electrocatalytic ORR, the rational regulation of coordination structure and thus the electronic structure of carbon-based SMACs remains challenging. In this review, we critically examine the role of coordination structure, including local coordination structure (i.e., metal atomic centers and the first coordination shell) and extended local coordination structure (i.e., the second and higher coordination shells), on the rational design of carbon-based SMACs for high-efficiency electrocatalytic ORR. Insights into the relevance between coordination structures and their intrinsic ORR activities are emphatically exemplified and discussed. Finally, we also propose the major challenges and future perspectives in the rational design of advanced carbon-based SMACs for electrocatalytic ORR. This review aims to emphasize the significance of coordination structure and deepen the insightful understanding of structure-performance relationships.
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