Search results

To develop electrode materials for supercapacitor with superior electrochemical performance and simple preparation process, the purpose of this study is to prepare flexible CC/NiS/a-NiS electrodes with self-supporting structure by loading hydrothermally synthesized a-NiS particles along with nano-NiS on carbon cloth by electroplating method.

The effects of current densities, temperatures and pH values on the loading amount and uniformity of the active substances during the plating process were investigated on the basis of optimization of surface morphology, crystalline structure and electrochemical evaluation as the cyclic voltammetry curves, constant current charge–discharge curves and AC impedance.

The a-NiS particles on CC/NiS/a-NiS were mostly covered by the plated nano-NiS, which behaved as a bulge and provided a larger specific surface area. The CC/NiS/a-NiS electrode prepared with the optimized parameter exhibited a specific capacitance of 115.13 F/g at a current density of 1 A/g and a Coulomb efficiency of 84% at 5 A/g, which is superior to that of CC/NiS electrode prepared by electroplating at a current density of 10 mA/cm², a temperature of 55°C and a pH of 4, demonstrating its fast charge response of the electrode and potential application in wearable electronics.

This study provides an integrated solution for the development of specifically structured NiS-based electrode for supercapacitor with simple process, low cost and high electrochemical charge/discharge performance, and the simple and easy-to-use method is also applicable to other electrochemically active composites.

Public listing of small and medium enterprises (SMEs) stimulates unremitting transformations into their corporate governance (CG) practices. These transformations in CG are likely to impact the financial performance (FP). The current study examines how individual corporate CG mechanisms and their mutual interactions (configurational approach) stimulate the FP of listed SMEs. The study selects promoters’ ownership (PO), the board (B-INX) and information disclosures (DISC) as individual CG mechanisms. In addition, market competition (COMP) is considered a form of external governance/regulation.

The study uses five years of panel data (2018–2022) of 80 SMEs listed on the Bombay Stock Exchange’s (BSE) SME listing platform in India. Panel data fixed effects and cluster robust standard errors estimated. In addition to the impact of individual CG mechanisms, their mutual interactions (configurational approach) are tested using moderated hierarchical regression and confirmed by slope tests.

The results signify the ineffectiveness of individual CG mechanisms when acting in silos. However, their mutual interactions drive the FP. A hierarchy of results is obtained. PO is the dominant form of internal CG, negatively influencing the relevance of B-INX and DISC. B-INX tends to adhere to good governance by positively moderating the impact of DISC on FP. Lastly, COMP acts as external governance that dominates the ownership effects. Findings reveal that the interactions among individual CG mechanisms are essential to the FP of listed SMEs. Such interactions adjust the agency theory dynamics of CG in these firms.

The study takes a holistic approach to investigate the agency theory dynamics via the mutual interactions among multiple CG forms. It highlights how the presence of a dominant form of CG can adjust the financial effect of others, thereby adjusting agency theory dynamics.

These results hold practical significance for SMEs in multiple ways. SMEs should embrace configurational approach to comprehend their agency dynamics. The configurational approach of CG mechanisms is the way forward for SMEs, which are known to be financially constrained. In other words, the fact that the resiliency of SMEs is very often questioned calls for the configurational approach, where different CG mechanisms coexist to drive FP.

The study is by far the first of its kind to investigate the CG of listed SMEs against the backdrop of the configurational approach. The findings will benefit industry practitioners, academics and regulatory bodies to visualize the governance practices through the lenses of configurational approach.

The widespread uptake of digital technology tools for online teaching and learning reached its peak during the nationwide lockdown triggered by the COVID-19 pandemic. It transformed the higher education institutions (HEIs) marketplace both in developed and developing countries. However, in this process of digital transformation, several HEIs, specifically from developing countries, faced major challenges. That threatened to affect their sustainability and performance. In this vein, this study conducts a bibliometric review to map the challenges during the COVID-19 pandemic and suggest strategies for HEIs to cope with post-pandemic situations in the future.

This comprehensive review encompasses 343 papers published between 2020 and 2023, employing a systematic approach that combines bibliometrics and content analysis to thoroughly evaluate the articles.

The investigation revealed a lack of published work addressing the specific challenges faced by the faculty members affecting their well-being. The study underscores the importance of e-learning technology adoption for higher education sustainability by compelling both students and teachers to rely heavily on social media platforms to maintain social presence and facilitate remote learning. The reduced interpersonal interaction during the pandemic has had negative consequences for academic engagement and professional advancement for both educators and students.

This has implications for policymakers and the management of HEIs, as it may prove useful in reenvisioning and redesigning future curricula. The paper concludes by developing a sustainable learning framework using a blended approach. Additionally, we also provide directions for future research to scholars.

This study has implications for policymakers and HEI management to rethink the delivery of future courses with a focus on education and institute sustainability. Finally, the research also proposes a hybrid learning framework for sustainability and forms a robust foundation for scholars in future research.