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'characterized': [103], 'using': [104], 'X-ray': [105], 'diffraction,': [106], 'scanning': [107], 'electron': [108], 'microscope': [109], 'techniques': [110], 'gas': [112], 'porosimetry': [113], 'analysis.': [114], 'Here': [115], 'we': [116], 'demonstrated': [117], 'significant': [119], 'differences': [120], 'between': [124], 'MnO2': [125, 139], 'polymorphs’': [126], 'pH;': [129], 'however,': [130], 'proves': [134], 'that': [135, 158], 'has': [140], 'four': [142], 'times': [143], 'stronger': [144], 'influence.': [145], 'There': [146], 'no': [148, 192], 'parameter.': [155], 'We': [156], 'showed': [157], 'high': [160], 'poorly': [166], 'crystalline': [167, 203], 'leads': [169], 'to': [170, 208], 'blockage': [172], 'micropores': [174], 'akhtenskite': [176], 'and,': [177], 'contrary,': [178], 'causes': [179], 'development': [181], 'surface': [184], 'structure': [185], 'birnessite.': [187], 'At': [188], 'same': [190], 'time,': [191], 'changes': [193], 'surfaces': [196], 'pyrolusite,': [200], 'highly': [202], 'found': [206], 'due': [207], 'small': [211], 'loading': [212], 'by': [213], 'adsorbate.': [215]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W4321789573', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}], 'updated_date': '2025-01-09T04:23:26.623058', 'created_date': '2023-02-25'}