Recent advances of noble-metal-free bifunctional oxygen reduction and evolution electrocatalysts

Author(s): Chang-Xin Zhao ¹ ^, ² ^, ³ ^, ⁴ , Jia-Ning Liu ¹ ^, ² ^, ³ ^, ⁴ , Juan Wang ⁵ ^, ⁶ ^, ⁷ ^, ⁴ ^, ⁸ , Ding Ren ¹ ^, ² ^, ³ ^, ⁴ , Bo-Quan Li ⁵ ^, ⁶ ^, ⁷ ^, ⁴ ^, ⁸ , Qiang Zhang ¹ ^, ² ^, ³ ^, ⁴

Publication date (Electronic): 2021

Journal: Chemical Society Reviews

Publisher: Royal Society of Chemistry (RSC)

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Abstract

Bifunctional oxygen reduction and evolution constitute the core processes for sustainable energy storage. The advances on noble-metal-free bifunctional oxygen electrocatalysts are reviewed.

Abstract

Oxygen reduction and evolution reactions constitute the core process of many vital energy storage or conversion techniques. However, the kinetic sluggishness of the oxygen redox reactions and heavy reliance on noble-metal-based electrocatalysts strongly limit the energy efficiency of the related devices. Developing high-performance noble-metal-free bifunctional ORR and OER electrocatalysts has gained worldwide attention, where much important progress has been made during the last decade. This review systematically addresses the design principles to obtain high-performance noble-metal-free bifunctional oxygen electrocatalysts by emphasizing strategies of both intrinsic activity regulation and active site integration. A statistical analysis of the reported bifunctional electrocatalysts is further carried out to reveal the composition–performance relationship and guide further exploration of emerging candidates. Finally, perspectives for developing advanced bifunctional oxygen electrocatalysts and aqueous rechargeable metal–air batteries are proposed.

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Combining theory and experiment in electrocatalysis: Insights into materials design

Zhi Seh, Jakob Kibsgaard, Colin F. Dickens … (2017)

Electrocatalysis plays a central role in clean energy conversion, enabling a number of sustainable processes for future technologies. This review discusses design strategies for state-of-the-art heterogeneous electrocatalysts and associated materials for several different electrochemical transformations involving water, hydrogen, and oxygen, using theory as a means to rationalize catalyst performance. By examining the common principles that govern catalysis for different electrochemical reactions, we describe a systematic framework that clarifies trends in catalyzing these reactions, serving as a guide to new catalyst development while highlighting key gaps that need to be addressed. We conclude by extending this framework to emerging clean energy reactions such as hydrogen peroxide production, carbon dioxide reduction, and nitrogen reduction, where the development of improved catalysts could allow for the sustainable production of a broad range of fuels and chemicals.

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Opportunities and challenges for a sustainable energy future.

Steven Chu, Arun Majumdar (2012)

Access to clean, affordable and reliable energy has been a cornerstone of the world's increasing prosperity and economic growth since the beginning of the industrial revolution. Our use of energy in the twenty-first century must also be sustainable. Solar and water-based energy generation, and engineering of microbes to produce biofuels are a few examples of the alternatives. This Perspective puts these opportunities into a larger context by relating them to a number of aspects in the transportation and electricity generation sectors. It also provides a snapshot of the current energy landscape and discusses several research and development opportunities and pathways that could lead to a prosperous, sustainable and secure energy future for the world.