Efficient reduction of CO2 and inhibition of hydrogen precipitation by polyoxometalate photocatalyst modified with the metal Mn.

Photocatalytic reduction of CO2 to chemical fuels is attractive for solving both the greenhouse effect and the energy crisis, but the key challenge is to design and synthesize photocatalysts with remarkable performance under visible light irradiation. Efficient catalytic carbon dioxide reduction (CO2RR) with light is considered a promising sustainable and clean approach to solve environmental problems. Herein, we found a new photocatalyst ([Mn(en)2]6[V12B18O54(OH)6]) (abbreviated as Mn6V12) based on the modifiability of polyoxometalates, in which Mn acts as a modifying unit to efficiently reduce CO2 to CO and effectively inhibit the hydrogen precipitation reaction. This Mn modified polyoxometalate catalyst has a maximum CO generation rate of 4625.0 µmol g-1 h-1 and a maximum H2 generation rate of 499.6 µmol g-1 h-1, with a selectivity of 90.3% for CO generation and 9.7% for H2 generation. This polyoxometalate photocatalyst can effectively reduce CO and inhibit the hydrogen precipitation reaction. It provides a new idea for the efficient photocatalytic carbon dioxide reduction (CO2RR) with polyoxometalate catalysts.

Effect of paternalistic leadership on Chinese youth elite athletes' satisfaction: Resilience as a moderator.

This study extended the research on the relationship between youth elite athletes' satisfaction and coaches' paternalistic leadership by identifying athletes' resilience as a moderator. A total of 221 youth elite football (i.e., soccer) players aged 13-19 years old who are students of a Chinese professional football boarding school participated in a questionnaire survey. The study found no correlation between the three dimensions of coaches' paternalistic leadership (authoritative leadership, benevolent leadership, and moral leadership) and the youth athletes' satisfaction. The results also showed that the interaction of resilience and moral leadership affects the youth elite athletes' satisfaction, whereas resilience does not play a moderating role in the relationship between authoritative leadership or benevolent leadership and satisfaction. As the results of the study are different from those of other scholars, they may reveal the uniqueness of youth elite football players in boarding schools. This study further analyzed the possible reasons for this result and prospected (or indicated) the theoretical and practical implications of these findings. Based on the conclusion, the study recommended that youth elite football schools should pay attention to the results of scientific research in leadership styles and apply them to practice in the future.

Coaching by Age: An Analysis of Coaches' Paternalistic Leadership on Youth Athletes' Organizational Citizenship Behavior in China.

Based on social cognitive theory, we studied the relationship between coaches' paternalistic leadership (PL) and youth athletes' organizational citizenship behavior (OCB) and the mediation effect of athletes' trust in coaches, in China. This age-specific research was conducted among more than 2,000 Chinese youth soccer players. Overall, 758 youth soccer players, aged 13-18 years, completed a self-report questionnaire. The results showed that the three dimensions of the coaches' PL have different relationships with OCB, and the differences were due to differences in athletes' ages. Additionally, we verified the mediation role of trust. Our research conclusions are of great significance to the study of Chinese youth soccer as in-depth research can provide a deeper and more precise understanding of the relationship between PL and the OCB of Chinese youth soccer players. This study expands the literature on social cognitive theory and sheds light on the relationship between coach leadership and athlete OCB by providing extensive evidence.