In this review article, we focus on the design and creation of earth-abundant non-precious metal-coordinated eco-friendly catalysts with high oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performances. The development of a cost-effective, efficient and durable bifunctional ORR and OER electrochemical catalyst is a key for future batteries. So far, precious metals, such as Pt and Ir, have been used as efficient catalysts for the ORR and OER, respectively. However, they are expensive and their deposits on earth are limited, which are the major drawbacks of these metals. One more drawback for the practical application is the sluggish reactions of ORR and OER. Since electroconductivity of promising metal-free catalyst candidates are poor, good electronic supporting materials are needed. Owing to the high conductivity, stability and easy handling, carbon nanotubes are a most promising material. After Introduction, we summarize recent advances in i) carbon nanotube/nanocarbon-based ORR and OER catalysts, ii) metal oxide and others/nanocarbon catalysts for ORR, OER, HER and Zn-air electrodes, as well as iii) computational study for such catalyst reactions. Such studies are highly beneficial for future energy materials design and synthesis in batteries and molecular catalysts with high performances.

Employee relations are the medium through which both employees and the company mutually co-operate for the maximum satisfaction of the economic, social and psychological wants ofall people. The objectives of the study are: (1) to analyse the employee relations climate existing at various levels and (2) to identify the various employee attitudes which determines the employee relations in an organised public sector company. It is concluded that Working conditions, Level of supervision, Communication, worker participation, inter personal relationship etc., induce the employee relation climate in the organisation. By improving these factors, aconducive climate can be achieved. Effective and frequent Counseling for the employees and frequent meetings in all levels of the organisation would also influence the climate, which would result in improved climate and productivity. tOr P. Ganesan is Assistant Professor at the College of Management Sciences, Vellore Institute of Technology (Deemed University). Vellore. tV. Samuel Rajkumar is Ph 0 Research Scholar, College of Management Sciences, Vellore Institute of Technology (Deemed University), Vellore. tV. Saravanan is MBA Alumnus, College of Management Sciences, Veilore Institute of 'Technology (Deemed University), Vellore. MANAGEMENT &LABOUR STUDIES Employer and employee relations constitute one of the most delicate and complex problems of modern industrial society with growing prosperity and rising wages, workers have gained higher living wages, more education, sophistication and generally greater mobility career pattern have <:hanged, as .growing proportions have been compelled to leave the farms and become wage and salary earners under factory conditions. Large numbers of men, women and children have concentrated in few urban areas, under mass ignorance drenched in poverty and possessing conflicting ideologies.The Hawthorne studies conclusively showed, by quantitative measurements that normal interactions ofworkers at work always create a social net work called the 'informal organization' which exerts tremendous influence over workers

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