by Lin Xie  and Donald Kirk

Received: 09 June 2021;  Published: 16 September 2021;  doi: 10.21926/cr.2103003

Fe-rich alloys have been widely studied as catalyst materials for the cathodic oxygen reduction reaction (ORR) in hydrogen fuel cells, and many have shown high activities. The stability of Fe-rich catalysts has also been researched, and some studies have shown promising results using an accelerated stress test (AST), which uses a potential cycling method. However, for commercial fuel cell applications, such as standby power systems, the catalyst has to tolerate a high potential for a long period, which can not be r [...]

by Minato Nakamura  and Yoshinori Murakami

Received: 17 August 2021;  Published: 13 September 2021;  doi: 10.21926/cr.2103002

The photocatalytic reaction involved in TiO2 photocatalysis was investigated using a microreactor coated with TiO2 film on the glass plate attached on one side of the microreactor. It was confirmed that the effect of H2O2 on the photocatalytic degradation efficiency of azo dyes (acid orange 7, acid red 151, and acid yellow 23) was dependent on the polymorphs (anatase and rutile) of TiO2 coated on the glass plate of the UV-irradiated microreactor. Scavengers of holes (KI) and electrons (p-benzoquinone) were added to [...]

by Shiping Wang  , Georg Bendt  and Stephan Schulz

Received: 24 May 2021;  Published: 16 July 2021;  doi: 10.21926/cr.2103001

One-pot synthesis of mesoporous hybrid material consisting of Mn-Co/CoO nanoparticles encapsulated in an N-doped graphene shell decorated with Mo2C nanoparticles (Mo2C-NC@Mn-Co/CoO) was reported. The Mn and Mo components synergistically refined the graphitized carbons due to the interactions with N and C atoms while promoting the stability of the Co/CoO nanoparticles. These components exhibited a beneficial effect on the dispersion of the active metal/metal oxide nanoparticles and the formation of a mesoporous stru [...]

by Gustavo J. Nagy  , Nathalie Muñoz  , Isabel C. Olivares  and Isaías Lescher Soto

Received: 20 January 2026;  Published: 09 July 2026;  doi: 10.21926/aeer.2603019

South America’s coastal ecosystems face increasing threats from multiple climatic stressors, including sea-level rise, ocean warming, intensifying heatwaves, shifts in ENSO patterns, ocean acidification, glacier melt, and more frequent extremes such as storms, droughts, and altered river discharges. These processes accelerate biodiversity loss, cause erosion, and deepen socio-ecological vulnerabilities. The literature review used a convergent mixed-methods approach with an embedded design, integrating quantitative [...]

by Sofia Castelo  , Filipa Ferreira  and Miguel Amado

Received: 11 January 2026;  Published: 08 July 2026;  doi: 10.21926/aeer.2603018

This paper analyses the first cycle of the Malaysia Adaptation Sharing Hub (MASH), an exploratory national knowledge-transfer and climate-adaptation acceleration network developed under the Penang Nature-Based Climate Adaptation Program (PNBCAP), the country’s first urban climate adaptation program. MASH was designed to address the lack of capacity in urban climate adaptation across Malaysian cities, including limited access to localized climate data and challenges in identifying and implementing adaptation measure [...]

by Alexander Ye. Kaglyan  , Dmitri I. Gudkov  , Volodymyr V. Belyaev  , Sergiy I. Kireev  , Lyudmyla P. Yurchuk  , Sergiy P. Pryshlyak  , Natalya A. Pomortseva  , Olena O. Gupalo  and Mariya O. Men’kovska

Received: 08 January 2026;  Published: 07 July 2026;  doi: 10.21926/aeer.2603017

The results of the assessment of the levels of radionuclide contamination of fish in the dammed, conditionally impermeable Yanivskyi backwater of the Pripyat River in the Chornobyl Exclusion Zone (ChEZ) for the period 2008-2025 are presented. It was found that the activity concentration of radionuclides in representatives of the ichthyofauna of the backwater as of 2025 decreased compared to the beginning of our research of this water body in 2008, on average, by 1.6 times for the content of 90Sr, and by 1.4 times f [...]

by Van Dinh Pham  , Van Toi Pham  , Minh Giang Hoang  and Ping Yu Chang

Received: 14 January 2026;  Published: 01 July 2026;  doi: 10.21926/aeer.2603016

Anaerobic digestion (AD) has emerged as a promising pathway for recovering energy from organic-rich municipal solid waste (MSW), particularly in waste systems characterized by high biodegradable content and moisture levels. However, the relationships between waste physicochemical properties, methane recovery potential, and techno-economic feasibility remain insufficiently integrated in current research. This study developed a comparative framework combining empirical prediction (S1), stoichiometric estimation (S2), [...]

by Iga Janus  and Paweł Adam Piepiora

Received: 20 December 2025;  Published: 24 June 2026;  doi: 10.21926/aeer.2602015

The field of sports psychology has undergone a significant transformation in recent years, largely influenced by global changes caused by the pandemic. One notable development is the evolution of e-sports psychology from an emergency solution to a permanent and integral component of a specialist’s repertoire. The objective of this paper is to provide a concise overview of the contemporary provision of psychological services through online consultations in competitive sport. The advent of global digitalisation has e [...]

by Mehmet Recai Uygur  and Fatma Sever

Received: 28 February 2026;  Published: 22 June 2026;  doi: 10.21926/aeer.2602014

This Perspective revises the Regime-Constraint-Adaptation (RCA) framework to clarify that environmental adaptation is not explained by regime labels alone, nor by a normative comparison between democracy and autocracy. Governance is treated more narrowly as the selection, calibration, implementation, and correction of policy instruments in relation to legally defined ecological objectives and observed ecological outcomes. The revised argument integrates RCA with the Technology-Organization-Environment (TOE) framewo [...]

by Nazgol Hafizi  , Gokce Tuna  and Sadiye Müjdem Vural

Received: 15 December 2025;  Published: 18 June 2026;  doi: 10.21926/aeer.2602013

The incorporation of innovative contemporary façade materials has fundamentally transformed architectural practice, driven by increasing demands for sustainability, building performance, and aesthetic expression. Despite substantial technical advancements in materials science, a critical gap persists in linking material innovation to tectonic expression — the relationship between material properties, construction logic, and architectural form. This study presents a systematic meta-analysis and a taxonomic framework [...]