{'fraction_non_alphanumeric': 0.011412268188302425, 'fraction_numerical': 0.0, 'mean_word_length': 5.5607476635514015, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Oxygen Vacancies on Layered Niobic Acid Weaken the Catalytic Conversion of Polysulfides in Lithium Sulfur Battery.

Oxygen vacancies are usually considered as beneficial in catalytic conversion of polysulfides in lithium sulfur battery. In this work, we demonstrated that the conversion of polysulfides was hindered by creating oxygen vacancies on ultrathin layered niobic acid. The inferior performance induced by oxygen vacancy was mainly attributed to the decreased electric conductivity as well as the weakened adsorption of polysulfides on catalyst surface. This work showed that the care should be taken when designing a new catalyst for lithium-sulfur battery using defect-engineering strategy.