Sacrifice and valorization of biomass to realize energy exploitation and transformation in a photoelectrochemical way

Tang, Daobin; Liu, Jianguo; Zhang, Xinghua; Chen, Lungang; Ma, Longlong; Zhang, Qi

doi:10.1039/d3gc01934a

Cited by 14 publications

(2 citation statements)

References 145 publications

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“…However, some biomasses have a less positive oxidizing potential than water. [199] TiO 2 is a basic example of a suitable semiconductor for the PEC oxidation of biomass via * OH radical generation, but its insufficient light absorption limits its applications. [200,201] Figure 7 shows a schematic of the design of suitable photoanodes, considering their band positions for biomass oxidation or waste reforming via the PEC process.…”

Section: Waste Reforming and Biomass Valorizationmentioning

confidence: 99%

Rational Design of Photoanodes to Produce Value‐Added Chemicals Coupled with Hydrogen

Khan,

Bera,

Jung

et al. 2024

ChemElectroChem

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Green hydrogen fuel generation via the photoelectrochemical (PEC) approach has attracted considerable attention recently for its sustainability and eco‐friendliness. Photoelectrocatalysts are the key component of the PEC process. To produce green hydrogen by this approach at a reasonable rate from water splitting and waste valorization, proper design and electronic structure modulation of the photoelectrocatalysts are of utmost importance. Therefore, in this review, we discuss the materials selection, design, and engineering of photoanode materials to efficiently harvest and convert solar energy into green hydrogen fuel and value‐added chemicals. In this regard, we introduce the fundamentals and the mechanistic insights of the PEC solar energy conversion and storage technologies, which would provide knowledge to novices to gain insight into this field while designing a new photoanode. Moreover, we mention the importance of various semiconducting materials and their surface/interface engineering aspects to improve the PEC properties for selective water oxidation to value‐added chemicals and waste valorization coupled with green hydrogen generation. Finally, we discuss the conclusions and prospects of this technology by highlighting the major challenges and its potential for commercialization.

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Section: Waste Reforming and Biomass Valorizationmentioning

confidence: 99%

Rational Design of Photoanodes to Produce Value‐Added Chemicals Coupled with Hydrogen

Khan,

Bera,

Jung

et al. 2024

ChemElectroChem

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“…128,129 PEC techniques use light to create electron–hole pairs in semiconductors, driving reactions at the electrode surface that convert biomass into hydrogen and hydrocarbons using solar energy with high selectivity. 130,131 Photosonothermal techniques combine light, ultrasound, and thermal energy. Ultrasound's cavitation effect creates localized high temperatures and pressures, enhancing biomass degradation and catalytic processes for biofuel and chemical production.…”

Section: Summary and Future Outlookmentioning

confidence: 99%

Heterogeneous photocatalytic valorization of lignocellulose biomass for chemical and fuel production via reductive pathways

Ghalta,

Chauhan,

Srivastava

2024

Sustainable Energy Fuels

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Roles of Cocatalysts in Biomass Photo(electro)refining

Li,

Wang

et al. 2024

Advanced Energy Materials

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Photosynthesis converts solar energy, carbon dioxide, and water into biomass, offering a renewable energy and chemical source. Biomass photo(electro)refining (BPeR) emerges as a sustainable alternative to petrochemicals for fuel and chemical production. However, BPeR faces challenges due to photocatalyst limitations, necessitating the integration of cocatalysts. Cocatalysts significantly impact the efficiency, selectivity, and durability of BPeR reactions, yet their roles require systematic elucidation and understanding. This review explores how cocatalysts impact the carbon bond functionalization, cleavage, and formation in biomass and its derivatives. It discusses their crucial roles in charge carrier generation, separation, and transportation, particularly in catalyzing surface reactions such as hydrogen‐involved reactions, generation, and manipulation of oxygen or carbon radicals, and the C─C/O/H bond transformations. Additionally, it outlines challenges and prospects for developing cocatalysts to enhance BPeR efficiency and durability, boosting the viability of biomass as a sustainable source of energy and materials.

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Sacrifice and valorization of biomass to realize energy exploitation and transformation in a photoelectrochemical way

Abstract: Photoelectrochemistry (PEC) transfers photoexcited electrons from the photocatalyst to the cathode through a wire, to avoid, to a considerable extent, the recombination of charge carriers in solitary photocatalysis. The moderate...

Cited by 14 publications

References 145 publications

Rational Design of Photoanodes to Produce Value‐Added Chemicals Coupled with Hydrogen

Rational Design of Photoanodes to Produce Value‐Added Chemicals Coupled with Hydrogen

Heterogeneous photocatalytic valorization of lignocellulose biomass for chemical and fuel production via reductive pathways

Roles of Cocatalysts in Biomass Photo(electro)refining

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